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Engineering Groups



Engineering
Unit Conversion &
Scientific Calculators



Electrical &
Computer
Engineering



Electrical Engineering
1st & 2nd Year


Computer Science
1st & 2nd Year



555 Timers

Accelerator Research
Amplifier

Antenna | Annealing
Architecture | A.I.

Bandstructure | Bandwidth
BGA | Buck Converter

Cable/Wireless etc.
Capacitors

CD-ROM, CD-R & CD-RW

Circuit Board Design
Circuits/Circuit Design

Computer Chip Chemistry
Computer Hard Drive
Computer Modeling
Computer Monitors

Conduction
Current/Voltage/Frequency
Digital Filter Design
Diffraction
Discrete Systems

Electricians Toolbox

Electromagnetic Forces
Electromagnetic Spectrum

Floating Point Performance
Four-Bar | Fourier
Gravity & Other Forces

Harmonics
Heat Transfer

Impedance, Inductance
& Capacitance


Linear Programming
& Algorithms


LT | Microstrip
Microwave
Mixer Applications

Motors
Network (IP, Subnet etc.)

Neural Networks

Oscilloscope
OHMS Law

Petri-Net
Photelectric Effect
Photon Energy

Photovolataic/Solar

Power/Transformers
& Generators

Power Electronics

Quantum Computers
Quartz

Raceway Fill
Radio Design
Receivers | Resistors
Robotics | Scanners

Semiconductors
& Microelectronics
Materials & Properties


Semiconductors
& Microelectronics
Devices


Signals, Systems & Controls

Software Development
Spectrum Analysis
Speech Recognition
Strain Gages

TBS-EDS
Tesla Coil
Transistors

Transmission Line
Turing Machines
Voltage Drop | Wave












Engineering
Unit Conversions




Unit Conversion, Scientific etc.


FOR MORE UNIT CONVERSION CALCULATORS SEE MATHEMATICS CALCULATORS CENTER


International System of Units


INTERNATIONAL SYSTEM OF UNITS - Physics Laboratory, National Institute of Standards For more information see The NIST Reference on Constants, Units, & Uncertainty; Physical Reference Data or the Physics Laboratory, National Institute of Standards and Technology

Some exaples include

SI Units

SI Prefixes

Fundamental Physicsal Constants



Engineering/Scientific - Intergrals Calculators


INTEGRALS: THE INTEGRATOR - Wolfram Research, Inc "The Power To Do Integrals As The World Has Never Seen Before". For more information see Wolfram Research, Inc



Engineering Specfic Unit Conversion Calculators - Some Examples


ENGINEERING, SCIENTIFIC UNIT CONVERTER - Legacy Systems VERY VERY EXTENSIVE. For more information see Legacy Systems



INTERACTIVE UNIT EQUIVALENCY CONVERTER CALCULATOR - TRIATEK "This utility allows you to convert from one engineering scale to another." For more information see TRIATEK Interactive Engineering Tools or TRIATEK

Other Equivalency Converters include

Interactive Unit Equivalency Table Generator



Engineering Energy Unit Conversion Calculators


CONVERSION FACTORS FOR ENERGY EQUIVALENTS - CALCULATOR - Physics Laboratory, National Institute of Standards Includes: Joule (J); kilogram (Kg); inverse meter (1/m); hertz (Hz); kelvin (K); electron volt (eV); atomic mass unit (u); and hartree (Eh). For more information see International System of Units (SI); The NIST Reference on Constants, Units, & Uncertainty; Physical Reference Data or the Physics Laboratory, National Institute of Standards and Technology



ENERGY CALCULATOR/CONVERTER - EE/BTS Test Site, Pacific Northwest National Laboratory (PNL) & the Office of Building Technology, State and Community Programs, Department of Energy VERY VERY EXTENSIVE. Conversion examples include: Quads to Billion Kilowatt Hours; Quads to Million Metric Tons of Coal; Quads to Trillion Cubic Ft. of Natural Gas; Quads to Million Tons of Oil Equivalent; Quads to ExaJoules. For more information see EE/BTS Test Site; Building Energy Data or the Office of Building Technology, State and Community Programs



Engineering Chemical & Thermodynamics Unit Conversion Calculators


CONVERSION FACTORS FOR ENERGY EQUIVALENTS - CALCULATOR - Physics Laboratory, National Institute of Standards Includes: Joule (J); kilogram (Kg); inverse meter (1/m); hertz (Hz); kelvin (K); electron volt (eV); atomic mass unit (u); and hartree (Eh). For more information see International System of Units (SI); The NIST Reference on Constants, Units, & Uncertainty; Physical Reference Data or the Physics Laboratory, National Institute of Standards and Technology



ENGINEERING UNIT CALCULATOR (JAVA APPLETS) - S. Bhattacharjee, Department of Mechanical Engineering, San Diego State University "These applets, which I call the Daemons, will help an engineer solve a wide range of thermodynamic problems." For more information see Utilities for Engineers or Thermonet



FUEL FACTS CALCULATORS - Ontario Propane Association, Canada VERY EXTENSIVE. For more information see Ontario Propane Association, Canada

Calculators include

Pressure Conversion Calculator

Fluid Conversion Calculator

Energy/Work Conversion Calculator

Volume/Capacity Conversion Calculator



CONVERSION FACTORS: CALCULATORS - Process Associates of America For more information see Process Tools or Process Associates of America

Examples include

Concentration || Diffusivity || Enthalpy (mass basis)

Enthalpy (vol basis) || Entropy

Flowrate (vol basis) || Heat Capacity

Heat Transfer Coefficient || Heat Rate

Mass Transfer Coefficient

Pressure Drop / Length || Thermal Conductivity

Torque || Viscosity (absolute)



Engineering Economics Unit Conversion Calculators


ENGINEERING ECONOMICS CALCULATOR - C. Murray, Industrial Parallel Computing Laboratory, Department of Industrial Engineering, Texas A&M University For more information see Chase Murray's Home Page or the Industrial Parallel Computing Laboratory

Some examples include

Depreciation Calculator

Interest Rate Conversion Factor Calculator



Engineering Vacuum Unit Conversion Calculators - Some examples


AVS REFERENCE GUIDE - American Vacuum Society (AVS) and Hosted by the American Intitute of Physics (AIP) VERY VERY VERY EXTENSIVE. For more information see the American Intitute of Physics or the American Vacuum Society

Some examples from over "15" calculators include

Refrigeration Calculator

Throughput & Leak Rate Calculator

Working Pressure Ranges of Vacuum Pumps

Working Pressure Ranges of Vacuum Guages

Optical Emission Spectral Lines by Wavelength in Nanometers

Vapor Pressure



Engineering Volume Unit Conversion Calculators - Some examples


Volume Inclusive

ABE VOLUME CALCULATORS - S.D. Filip To, Department of Agricultural and Biological Engineering, Mississippi State University For more information see Engineering Tools or Home Page of S.D. Filip To

Some Examples include

Volume of a Box

Volume of a Cylinder

Volume of a Sphere

Volume of a Cone

Volume of a Barrel



Tank Volume + Liquid Content

ONSIDE TANK VOLUME & DETERMINE LIQUID CONTENT REMAINING + PERCENT FULL CALCULATOR - Alberta Agriculture, Food and Rural Development, Alberta, Canada "By entering the above information this calculator gives you the contents of tank in cubic feet, Imperial and U.S. gallons, and litres..." For more information see Calculators or Alberta Agriculture, Food and Rural Development



VERTICAL TANK VOLUME & DETERMINE LIQUID CONTENT REMAINING + PERCENT FULL CALCULATOR - Alberta Agriculture, Food and Rural Development, Alberta, Canada "By entering the above information this calculator gives you the contents of tank in cubic feet, Imperial and U.S. gallons, and litres..." For more information see Calculators or Alberta Agriculture, Food and Rural Development



Tank Volume

TANK VOLUME + ELLIPTICAL SHAPED HEADS CALCULATOR - Bay Tank & Fabricating Co. Inc. "...You can insert two of the values (R,L or V) to calculate the other value. You can also choose the number elliptical shaped heads on the vessel..." For more information see Bay Tank & Fabricating Co. Inc.



CYLINDRICAL & RECTANGULAR TANK VOLUME CALCULATORS - Greer Tank and Welding, Inc. For more information see Greer Tank and Welding, Inc.



TANK VOLUME CALCULATOR - Regal Tanks, Suffolk, U.K. For more information see Regal Tanks



TANK VOLUME CALCULATOR - We-Mac Manufacturing, Inc. For more information see We-Mac Manufacturing, Inc.



TANK CALCULATOR - 17WebPlace.com For more information see 17WebPlace.com



TANK VOLUME & HEAD VOLUME CALCULATORS - Northland Stainless Inc. For more information see Northland Stainless Inc.



Engineering/Scientific Calculators


ARACHNOID CALCULATOR - P. Lutus, Arachnoid VERY - VERY EXTENSIVE. Scientific & Finance. For more information see Arachnoid



ASTR0-PHYSICAL CALCULATOR - C. Dolan, Department of Astronomy, University of Wisconsin, Madison, Wisconsin VERY VERY EXTENSIVE. For more information see Java Applets & Javascript; Chris Dolan's Home Page or the Department of Astronomy



BIG CALCULATOR APPLET (JAVA APPLET) - J. Tiscione VERY EXTENSIVE. "The precision of the calculator can be set by changing the value in the "digits:" field. The default value is 80 digits, but you can set it to 10000 digits or whatever you want." For more information see Jason Tiscione's Java Applet Index



CALCULATOR.NET (JAVABEAN BASED APPLET) - R. Hillyard, Rubecula Software VERY EXTENSIVE. "Calculator.NET is a customizable, JavaBean-based, full-precision scientific calculator applet." For more information see Calculator Net



HP-25 CALCULATOR SIMULATION - ENGINEERING & SCIENTIFIC (JAVA APPLET) - Applet written by L. Leinweber and hosted by Author: D.G. Hicks, The Museum of HP Calculators VERY EXTENSIVE. "These programs are not Hewlett-Packard products and are supplied without representation or warranty of any kind." For more information see The Museum of HP Calculators



JAVACALC 1.1 - K. Kikuchi, Japan "Since NetScape released version 3.0.1, JavaCalc can support more JavaScript features and works as an Interpreter software. JavaCalc now supports help function. You can search JavaScript's key word (Statements, Methods, Functions, Properties) with ? command." For more information see Math Collections or Ken Kikuchi's Home Page


NEWTON'S METHOD: Calculator - D. Sumner, Department of Mathematics, University of South Carolina VERY EXTENSIVE. "Enter an equation in terms of the variable x. Then enter a starting guess for x. For example,to find the square root of 2 you might enter x^2-2 for the equation, and 1 as an initial guess." For more information see Department of Mathematics or University of South Carolina



ONLINE CALCULATOR (JAVA APPLET) - Yigal, LiveEditor Inc. VERY EXTENSIVE. "Enter your math expression and see how the result changes as you type." Examples of vailable functions include: abs(x), acos(x), cos(x), exp(x), log(x,base), tan(x), sqrt(x) etc...



ON-LINE CALCULATOR - D. Sumner, Department of Mathematics, University of South Carolina Multimedia. "Use * for multiplication, / for division, and ^ for exponentiation. You can also use functions such as sqrt() exp(), ln(), cos() and sin()." For more information see Department of Mathematics or University of South Carolina



"PAPER TAPE" SCIENTIFIC CALCULATOR (JAVA APPLET) - Sorin Lazareanu VERY EXTENSIVE. For more information see Sorin Lazareanu's Home Page



PHYSICS POCKET COMPUTER (JAVASCRIPT) - Jean-Pol Vigneron, Department of Physique, Universitaires Notre-Dame de la Paix de Namur, Belgium VERY VERY VERY EXTENSIVE. For more information see Departmnet of Physique, Universitaires Notre-Dame de la Paix de Namur, BelgiumR



SCIENTIFIC CALCULATOR - C. Adler, Department of Physics, East Carolina University VERY EXTENSIVE. For more information see Test_Maker; Image-ination.com or Carl Adler's Home Page







Electrical
&
Computer Engineering





Electrical Engineering 1st & 2nd Year


FOR MORE COURSES & DATABASE SEE THE ENGINEERING CENTER



BASIC ELECTRICAL ENGINEERING CONCEPTS (JAVA APPLETS) - W.K. Chan, Department of Electrical & Computer Engineering, University of Iowa For more information see Wiston K. Chan's Home Page

Some examples include

Superposition of Step Functions

AC Power



ELECTRICTY & MAGNETISM INTERACTIVE JAVA TUTORIALS (JAVA APPLET) - Java programming: K.I. Tchourioukanov; Author: M.W. Davidson, Molecular Expressions: Exploring the World of Optics & Mircroscopy, Florida State University VERY VERY EXTENSIVE. For more information see Molecular Expressions: Exploring the World of Optics & Mircroscopy

Some examples from over "20" Applets include

Charging And Discharging A Capacitor

Vacuum Tube Diodes

Pulsed Magnets

How a Transformer Works



ELECTRICITY & MAGNETISM MODULES (JAVA APPLETS) - Mathematical Sciences, Rensselaer Polytechnic Institute (RPI) Multimedia Teaching Modules & Applets (Text & Images). "Mathematics and its Applications in Engineering & Science" For more information see Project Links: Mathematics and its Applications in Engineering and Science; Mathematical Sciences or Rensselaer Polytechnic Institute (RPI)

Some examples from over '10' Teaching Modules/Interactive Java Applets include

Electrostatic Field and Potential Module

Current and Resistance Module

Electromagnetic Oscillations Module



ELECTRONIC TOOLS (JAVA APPLETS) - Donaldson

Some examples include

Multi-tone Intermodulation Calculator

System Calculator (calculates a cascade devices)

Power Addition



INTERACTIVE DIGITAL PHASE LOCKED LOOP DESIGN - T. Fisher, Department of Computer Science, University of York, Canada "This is an interactive design package for designing digital (i.e. software) phase locked loops (PLLs)." For more information see Soft Modems: Structured Design and Implementation or Tony Fisher's Home Page



IPPEX SCIENCE MODULES (SHOCKWAVE) - Internet Plasma Physics Education Experience, Princeton Plasma Physics Lab, Princeton University Multimedia Tutorials using Shockwave. For more information see Internet Plasma Physics Education Experience (IPPEX)

Examples of Tutorials include

Properties of Matter

Fusion Energy

Fusion Data Analysis



PROJECT LINKS: MATHEMATICS AND ITS APPLICATIONS IN ENGINEERING AND SCIENCE - Mathematical Sciences, Rensselaer Polytechnic Institute (RPI) Multimedia Tutorials/Java Applets (Text & Images). VERY VERY EXTENSIVE. "This NSF supported project is a cooperative effort between mathematicians, engineers and scientists to develop educational materials that link mathematical topics with applications in engineering and science." For more information see Mathematical Sciences or Rensselaer Polytechnic Institute (RPI)

Examples of Major Categories which contain over "75" Tutorials/Applets

Calculus

Linear Systems

Differential Equations

Advanced Math Methods



SHOCKED SCIENCE (VIRTUAL SCIENCE LABORATORY) (SHOCKWAVE PLUG-IN) - Raman Pfaff, PPSA Consulting VERY EXTENSIVE. "Learning science is often done best when one has the chance to visualize situations. Hopefully these virtual exhibitions can help people do that."



VIRTUAL LABORATORY (JAVA APPLETS) - S. Russell, G. Bothun & A. Hulse, University of Oregon VERY EXTENSIVE. "In the interest of providing students with truely interactive texts, a series of experiments has been created using Java to demonstrate the application of this method of teaching."










Computer Science 1st & 2nd Year


FOR MORE COURSES & DATABASE SEE THE COMPUTER & COMMUNICATIONS CENTER



Base Conversion


ADDITION AND MULTIPLICATION TABLES IN VARIOUS BASES (JAVA APPLET) - Alexander Bogomolny For more information see Arithmetic & Algebra or Interactive Mathematics Education, Puzzles & Calculators



BASE CONVERTER CALCULATOR - N. Glover, Clemson University "Accurracy is 53-bits or (53/(log2(base))) digits" For more information see Calculators or Nick Glover's Home Page



BASE CONVERTER CALCULATOR - Mu Alpha Theta, Palm Harbor University High School "Convert to/from any base 2-36." For more information see JavaScript Library, Math Calculators or Palm Harbor University High School Mu Alpha Theta (PHUMU)



BASE CONVERSION: BINARY; TERNARY; QUINTAL; OCTAL; DECIMAL & HEXADECIMAL - Alexander Bogomolny For more information see Arithmetic & Algebra or Interactive Mathematics Education, Puzzles & Calculators



BINARY, TERNARY, QUINTAL, OCTAL, DECIMAL & HEXADECIMAL CALCULATOR - P. van den Steen, SubnetOnline.Com For more information see SubnetOnline



CONVERT DECIMAL FLOATING-POINT TO 32-BIT AND 64-BIT HEXADECIMAL REPRESENTATIONS ALONG WITH THEIR BINARY EQUIVALENTS: IEEE-754 CONVERSION CALCULATOR - Author: K.J. Brewer, Software Development, Delphi Delco Electronics Systems, and hosted by C. Vickery, Department of Computer Science, Queens College, CUNY VERY EXTENSIVE. For more information see Delco Electronics; IEEE-754 References or Christopher Vickery's Web Site



CONVERT 32-BIT HEXADECIMAL REPRESENTATION TO DECIMAL FLOATING-POINT ALONG WITH THE EQUIVALENT 64-BIT HEXADECIMAL AND BINARY PATTERNS: IEEE-754 CONVERSION CALCULATOR - Author: K.J. Brewer, Software Development, Delphi Delco Electronics Systems, and hosted by C. Vickery, Department of Computer Science, Queens College, CUNY VERY EXTENSIVE. For more information see Delco Electronics; IEEE-754 References or Christopher Vickery's Web Site



CONVERT 64-BIT HEXADECIMAL REPRESENTATION TO DECIMAL FLOATING-POINT ALONG WITH THE EQUIVALENT 32-BIT HEXADECIMAL AND BINARY PATTERNS: IEEE-754 CONVERSION CALCULATOR - Author: K.J. Brewer, Software Development, Delphi Delco Electronics Systems, and hosted by C. Vickery, Department of Computer Science, Queens College, CUNY VERY EXTENSIVE. For more information see Delco Electronics; IEEE-754 References or Christopher Vickery's Web Site



HEXADECIMAL/DECIMAL/BINARY CALCULATOR - D. Tomezzoli, France VERY EXTENSIVE.



Computer Science


COMPUTER SCIENCE: VISUAL INVARIANTS (JAVA APPLETS) - M.P. Epstein, Project Java, State University of New York, Stony Brook, New York VERY EXTENSIVE. "This applet illustrates the operation of a number of sorting algorithms and the concept of an invariant..." For more information see Project Java



DIGITAL CIRCUIT DESIGN: REGISTER-TRANSFER-OBJECT HARDWARE SIMULATION (RETRO) - (JAVA APPLET) - T. Bräunl, Department of Electrical & Electronic Engineering, University of Western Australia, Perth, Australia VERY VERY EXTENSVIE. "...The tool comprises all essential building blocks, from simple AND/OR/NOT gates over registers, adders, multipliers, to RAM and ROM memory modules..." For more information see Thomas Bräunl's Home Page or the Department of Electrical & Electronic Engineering



INTRODUCTION TO COLOR (JAVA APPLETS) - N.C. Schaller, Computer Science Department, Rochester Institute of Technology "The goal of this project was an easy to use, interactive educational aide to help students better understand the concepts of color, its characteristics,..." For more information see Nan Schaller's Home Page

Some examples include

The Spectrum Applet

The Color Space Conversions Applet



INTRODUCTION TO XCOMPUTER - D. Eck, Department of Mathematics & Computer Science, Hobart and William Smith Colleges, Geneva, N.Y. VERY EXTENSIVE. "The xComputer applet, simulates a simple model computer." For more information see Labs & Applets for the Most Complex Machine or David J. Eck's Home Page



LGRAMMAR: A GRAPHICS TOOL FOR LINDERMAYER SYSTEMS (JAVA APPLET) - T. Bräunl, Department of Electrical & Electronic Engineering, University of Western Australia, Perth, Australia VERY EXTENSVIE. "...implements a two-dimensional and a three-dimensional graphics tool for evaluating Lindenmayer grammars..." For more information see Thomas Bräunl's Home Page or the Department of Electrical & Electronic Engineering



PDP-8 SIMULATOR - M.G. Arnold, Department of Computer Science, University of Wyoming, Laramie, Wyoming VERY VERY EXTENSIVE. For more information see JavaScript PDP-8 Simulator Home Page or Mark G. Arnold's Home Page



VISUAL INVARIANTS IN SORTING ALGORITHMS (JAVA APPLETS) - W. Braynen, Project Java, State University of New York, Stony Brook, New York Includes: LinearSearch & BinarySearch Applets. For more information see Project Java



VISUAL MACHINE LANGUAGE SIMULATOR (JAVA APPLET) - S. Kogan, D. Li, B.M. Bhatti & S. Raza, Project Java, State University of New York, Stony Brook, New York VERY VERY EXTENSIVE. "The purpose of VisualML is to graphically demonstrate a reference computer in action executing (performing) machine language instructions provided by the user (you) as input. " For more information see Project Java











555 Timers


555 CALCULATORS: MONOSTABLE TIMEOUT CALCULATOR & ASTABLE SQUARE WAVE CALCULATOR - J. Adams, The Electonics Workbench For more information see 555 Timers or the Electronics Workbench



Accelerator Research


CALCULATOR FOR ACCELERATOR RESEARCH (JAVASCRIPT) - KEK High Energy Accelerator Research Organization, Japan Includes calculators for: Parameters for Circulatr Wave Guide Modes; Parameters for Rectangular Wave Guide Modes; Bunch Length To Cutoff of Spectrum; and FWHM to Bunch Length. For more information see ARES Home Page or KEK High Energy Accelerator Research Organization



Amplifier


AUTOMATED TWO-STAGE AMPLIFIER - SWITCHED CAPACITOR INTEGRATOR DESIGNER - J. Wetherell, Research in Analog IC Design, Department of Electrical Engineering and Computer Sciences, U.C. Berkeley "Operational Amplifier Design" "This routine finds the device sizes for a two stage amplifier with Miller compensation." For more information see Integrated Circuit Design Calcs or John Wetherell's Home Page



BJT AMPLIFIER DESIGN CALCULATION - Department of Electrical and Electronic Engineering, University of Auckland, New Zealand VERY EXTENSIVE. For more information see Tools for Electronics; Electronic Design Laboratory; Technical Information or Department of Electrical and Electronic Engineering

Examples of other Amplifier Design Calculations include

J-FET Amplifier Design



Annealing


SIMULATED ANNEALING APPLET - M. Chalwell, Information Technology Section, University of Western Australia, Australia "AIM: Find global extrema. For a function f , which depends on one or more independent variables, we want to find it's global extrema (maximum or minimum). Extrema can be either maximum or minimum and can be simply substituted by letting f = -f." For more information see Matt "Docker" Chalwell's Home Page



Antenna


3 ELEMENT BEAM ANTENNA CALCULATOR & HALF WAVE DIPOLE CALCULATOR - J. Hawkins For more information see Jim's Home Page



ANTENNA SYSTEM EVALUATOR - CALCULATOR - VanVarden VERY EXTENSIVE. For more information see KD6DKS or the VanVarden family web page.



ANTENNA ELMER - E. Oros & B. Cocco, The Elmer HAMlet VERY EXTENSIVE. For more information see The Elmer HAMlet

Some Examples from over '15' Calculators include

Design Your Own Ground Plane

Design Your Own Dipoles And Inverted Vees

Calculate Electrical Length Of A Line



CUBICAL QUAD ANTENNA CALCULATOR - VanVarden VERY EXTENSIVE. For more information see KD6DKS or the VanVarden family web page.



HAM-RADIO ANTENNA DESIGN CALCULATOR (JAVA APPLET) - S.F. Lott "This program will help you arrive at a mathematically precise design, but the overall performance of any antenna also depends upon construction integrity, location, height, orientation, terrain, surrounding objects, etc. " For more information see WWW Ham Calculators or Steven F. Lott's Home Page



LINEAR ANTENNA (JAVA APPLETS) - Amanogawa VERY EXTENSIVE. For more information see Applets or Amanogawa



RF CALCULATORS & TOOLS - Decibel Products, Dallas, Texas VERY VERY EXTENSIVE. For more information see Decibel Products

Some examples from over "15" Calculators include

Conversion Formulas

Antenna Patterns



THE PACKETRADIO OPERATOR'S ANTENNA HANDBOOK - G. E. Rogers Sr. For more information see PacketRadio's Home Page

Examples of Calculators/Tutorials include

Design a J-Pole Antenna for your Packet Radio Station

Design-A-Quad Antenna



YAGI ANTENNA MODELING APPLET (JAVA APPLET) - K. Schmidt, Department of Physics and Astronomy, Arizona State University For more information see Kevin Schmidt's Home Page



Architecture


JAVA-INTERVAL CALCULATOR - A. Pereira & E. Alicea, Computer Architecture & Arithmetic Research (CAAR), Lehigh University VERY EXTENSIVE. "The calculator performs interval arithmetic operations and computers interval version of mathematical functions." For more information see Undergraduate Research; Research or Computer Architecture & Arithmetic Research (CAAR)



SILICON AREA TOOL CALCULATOR (JAVASCRIPT) - O. Mencer, Stanford Architecture and Arithmetic Group, Stanford University "As a first step this tool does the conversion between rbe, mm^2 and A, given feature size or resolution. The script can automatically detect which fields are filled and calculate the missing values." For more information see Processor Design Tools or Stanford Architecture and Arithmetic Group, Stanford University

Examples of other Calculation Tools include

Bus Occupancy Iteration

FUPA - Floating Point Unit Area

Java Script Design Tool

Optimum Pipeline

RAIDiator



A.I.: Artificial Intelligence


COMPUTATIONAL INTELLIGENCE (JAVA APPLETS) - A. Mackworth, D. Poole, M. Cline, K. O'Neill, & L. Tung, Laboratory for Computational Intelligence, Department of Computer Science, University of British Columbia, Canada For more information see the Laboratory for Computational Intelligence or the Department of Computer Science



Bandstructure


BANDSTRUCTURES - National Center for Computational Electronics, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign "For two specified normalized k-space points, one-dimensional profiles of energy bands of specified material are calculated using empirical pseudopotential method." For more information see Demos or the National Center for Computational Electronics



SILICON BANDSTRUCTURE - National Center for Computational Electronics, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign For more information see Demos or the National Center for Computational Electronics



Bandwidth


BANDWIDTH CALCULATOR (JAVASCRIPT) - Internet Network Services Ltd For more information see Internet Network Services Ltd



BGA


BGA ELECTRICAL CALCULATOR - Abpac Inc. VERY EXTENSIVE. "Electrical parameters for BGAs are determined by adding the contributions from wires, PCB traces, via holes and solder balls." For more information see Abpac Inc.



Buck Converter


BUCK (STEP-DOWN) CONVERTER CALCULATION - Department of Electrical and Electronic Engineering, University of Auckland, New Zealand VERY EXTENSIVE. For more information see Tools for Electronics; Electronic Design Laboratory; Technical Information or Department of Electrical and Electronic Engineering







Cable/Wireless etc.


CABLE ATTENUATION & VSWR CALCULATOR - Eupen Cable VERY EXTENSIVE. For more information see Eupen Cable



COAXIAL CABLE ATTENUATION & POWER HANDLING CALCULATOR - Times Microwave Systems "The calculator above can be used to estimate the attenuation (dB loss), power handling capability, and transmission efficiency for some of the more popular Wireless Communications and MIL Spec cables at the frequency of interest." For more information see Site Index or Times Microwave Systems



CUMULATIVE LEAKAGE INDEX (CLI) CALCULATOR - C.E. Harrington, Engineering and Technical Services Division, Cable Services Bureau, Federal Communications Commission (FCC) "This special calculator has been designed to calculate the Cumulative Leakage Index(CLI)." For more information see Engineering and Technical Services Division; Cable Services Bureau or the Federal Communications Commission (FCC)

Major FCC Interactive Databases include

FCC ID Equipment Authorization Database

Wireless Telecommunications Bureau (WTB) Database

AM Radio Database

FM Radio Database

TV Radio Database



Capacitors


CAPACITOR SIMULATION (JAVA APPLET) - Mathematical Sciences, Rensselaer Polytechnic Institute (RPI) Multimedia Teaching Modules & Applets (Text & Images). "Mathematics and its Applications in Engineering & Science" For more information see Electricity & Magnetism Modules; Project Links: Mathematics and its Applications in Engineering and Science; Mathematical Sciences or Rensselaer Polytechnic Institute (RPI)



CAPACITOR IDENTIFICATION - CALCULATORS - US Army Flexible Computer Integrated Manufacturing, Component Identification Tool & Hosted by F.R.F. Aragão, Física 3 Experimental, Instituto de Física, Universidade de Brasília, Brasília (Brazil) VERY EXTENSIVE. For more information see Fisica 3 Experimental or the Instituto de Física

Examples of Capacitor Calculators include

Class I Ceramic Capacitors: Capacitance Value Calculator (5 dots)

Class I Ceramic Capacitors: Capacitance Value Calculator (6 dots)



CAPACITOR COLOR CODES (JAVA APPLET) - W.S. Brinson, Department of Electrical and Computer Engineering, University of New Brunswick, Fredericton, NB, Canada For more information see Resistor & Capacitor Color Codes or Java Applets



POLYESTER CAPACITOR COLOUR-CODE CALCULATOR - Wirral, U.K. For more information see the Amateur Radio and Audio Calculators; Amateur Radio on the Wirral or the John's Home Page



CD-ROM, CD-R & CD-RW


CD-ROM, CD-R and CD-RW READHEAH (JAVA APPLET) - C.R. Wie, Electrical and Computer Engineering Department, SUNY, Buffalo, NY VERY EXTENSIVE. For more information see Educational Applets in Electrical Engineering; Educational Java Applet Service or Electrical and Computer Engineering Department



Circuit Board Design


DESIGN A PRESICION, SINGLE-SUPPLY PHOTO DETECTION CIRCUIT - Chip Center Multimedia Interactive Tutorials. VERY EXTENSVIE. "Photodiodes and their associated preamps are the bridge between a basic physical event and electronics..." For more information see Online Tools or the Chip Center



ENGINEERING TOOLS - Automata Inc., For more information see Automata - Printed Circuit Technology

Examples of Calculators include

Crosstalk

Parallel Conductors Lateral Cross Talk Modeling
Parallel Conductors Vertical Cross Talk Modeling

Impedance and Capacitance

Embedded Microstrip Impedance and Capacitance Modeling
Dual (Asymmetric) Stripline Impedance and Capacitance Modeling

Panel Calculator

Dual (Asymmetric) Stripline Noise Budget Modeling



PCB TRACE WIDTH CALCULATOR - B. Suppanz "...calculates the trace width for printed circuit boards based on a curve fit to IPC-D-275." For more information see Switched Mode Power Supply



THE IN-CIRCUIT DESIGN INTERACTIVE MULTILAYER IMPEDANCE CALCULATOR - In-Circuit Design (ICD) Pty Ltd., Australia VERY EXTENSIVE. Includes: 4,6,8,10 & 12 Layer Board Calculators. For more information see In-Circuit Design (ICD) Pty Ltd.

Examples of Calculators include

4 Layer Board

8 Layer Board

12 Layer Board



Circuits/Circuit Design


AC CIRCUITS - INTERACTIVE EXPERIMENTS (JAVA APPLETS) - Educators Corner, Agilent Technologies VERY VERY EXTENSIVE. For more information see Experiments; Educator's Corner or Agilent

Some examples from include

Coupled Oscillators: Part A (Square Wave Input)

Coupled Oscillators: Part C (Swept Sine)



CIRCUIT SIMULATORS (JAVA APPLETS) - T. Fisher, Department of Computer Science, University of York, Canada VERY VERY EXTENSIVE. For more information see Circuit Simulator Home Page or Tony Fisher's Home Page

Some examples from over "9" Applets include

A potential divider

A non-inverting op-amp amplifier with gain +3

Equal-Component-Value Sallen-Key Filter



DIGITAL CIRCUITS (JAVA APPLET) - M. Karweit, Department of Chemical Engineering, Johns Hopkins University "...Here we create an analogy between something that can be stored and measured in an electrical/mechanical device and a mathematical value..." For more information see Virtual Engineering



DIGITAL CIRCUIT DESIGN: REGISTER-TRANSFER-OBJECT HARDWARE SIMULATION (RETRO) - (JAVA APPLET) - T. Bräunl, Department of Electrical & Electronic Engineering, University of Western Australia, Perth, Australia VERY VERY EXTENSVIE. "...The tool comprises all essential building blocks, from simple AND/OR/NOT gates over registers, adders, multipliers, to RAM and ROM memory modules..." For more information see Thomas Bräunl's Home Page or the Department of Electrical & Electronic Engineering



LC TUNED CIRCUIT RESONANT FREQUENCY CALCULATOR - Deephaven, Newbury, U.K. "Type in the L and C values, selecting the units (Microfarads, Nanofarads, Picofarads, Henries, Milihenries, Microhenries, Nanohenries, Hertz, Kilohertz, Megahertz, Gigahertz) you wish to use..." For more information see Deephaven



LOGIC CIRCUITS: XLOGIC CIRCUITS LAB 1 (JAVA APPLET) - D. Eck, Department of Mathematics & Computer Science, Hobart and William Smith Colleges, Geneva, N.Y. VERY EXTENSIVE. For more information see Labs & Applets for the Most Complex Machine or David J. Eck's Home Page

Examples from over '10' other related Applets include

The xLogicCircuits Applet

Memory Circuits



LOGIC SIMULATOR (JAVAAPPLET) - G. Cusick, Comupter & Information Science, University of Florida "This program assists in the construction and simulation of digital logic gate circuits." For more information see G. Cusick's Home Page or Comupter & Information Science, University of Florida



QASIMDEOM - QUALITATIVE ANALYSIS OF ANALOG CIRCUITS - M. Thole, Institut für Netzwerktheorie und Schaltungstechnik, TU Braunschweig, Bundesrepublik Deutschland (Germany) "The Qualitative Analysis reproduces this ability on computers by introducing qualitative states such as positive, zero, or negative." For more information see Java Display Case or Manfred Thole's Home Page



Computer Chip Chemistry


COMPUTER CHIP CHEMISTRY: INTERACTIVE (JAVA & JAVA APPETS) - MultiCHEM, University of California, Berkeley Multimedia Tutorials/Modules (Text, Images & Movies). For more information see Modules or the ModularCHEM Constorium

Examples of Interactive Modules inlcude

Exploration 1B: Introduction to Microelectronic Processing

Exploration 1C: How is Chemistry used to Make Integrated Circuits?

Making a Capacitor

Making a Transistor

Using Photolithography



Computer Hard Drive


HOW A HARD DRIVE WORKS (JAVA APPLET) - Java programming: K.I. Tchourioukanov; Author: M.W. Davidson, Molecular Expressions: Exploring the World of Optics & Mircroscopy, Florida State University "...this tutorial illustrates how a hard drive is constructed and how it actually works internally..." For more information see the Electricty & Magnetism Interactive Java Tutorials or Molecular Expressions: Exploring the World of Optics & Mircroscopy



Computer Modeling


INTRODUCTION TO XCOMPUTER - D. Eck, Department of Mathematics & Computer Science, Hobart and William Smith Colleges, Geneva, N.Y. VERY VERY EXTENSIVE. "The xComputer applet, simulates a simple model computer." For more information see Labs & Applets for the Most Complex Machine or David J. Eck's Home Page



Computer Monitors


GAMMA MEASURING APPLET - A. Efros, Computer Vision Group, Computer Science Division, U.C. Berkeley VERY EXTENSIVE. "Have you ever noticed that when you view the same image (say a picture off the net) on two different monitors the image can appear very differently?..." For more information see Alexei (Alyosha) Efros' Home Page



Conduction


CONDUCTOR SIZING CALCULATOR (JAVASCRIPT) - N. DeBaggis, DeBaggis Electric Co. "For most alternating current systems. Based on a 3% Voltage Drop." For more information see DeBaggis Electric Co. or DeBaggis Electric Co.



NUMERICAL SOLUTION OF A ONE-DIMENSIONAL, TRANSIENT CONDUCTION PROBLEM (JAVA APPLET) - C. Gentili & E. Nobile, Department of Naval Architecture, Ocean and Environmental Engineering, Division of Applied Physics, University of Trieste, Italy Multimedia (Text & Image). "This Java applet is aimed to illustrate, in graphical form, a simple example of a one-dimensional, transient conduction problem. The interest is focussed upon the temporal evolution of the temperature in a plane wall, which is convectively cooled at both surfaces." For more information see Department of Naval Architecture, Ocean and Environmental Engineering (DINMA) or DINMA's Division of Applied Physics, University of Trieste, Italy



Current/Voltage/Frequency etc


CURRENT DESIGN CALCULATION - Department of Electrical and Electronic Engineering, University of Auckland, New Zealand VERY EXTENSIVE. For more information see Tools for Electronics; Electronic Design Laboratory; Technical Information or Department of Electrical and Electronic Engineering



DIGITAL FREQUENCY DISCRIMINATOR CALCULATION - Department of Electrical and Electronic Engineering, University of Auckland, New Zealand VERY EXTENSIVE. For more information see Tools for Electronics; Electronic Design Laboratory; Technical Information or Department of Electrical and Electronic Engineering



ENGINEERING, SCIENTIFIC UNIT CONVERTER - Legacy Systems Currently includes: Acceleration; Angle; Angular Acceleration; Angularvelocity; Area; Capacitance; Charge; Current; Energy or Work; Force; Illuminanace; Length; Luminance; Magnetic Flux; Mass; Power; Pressure; SI Prefixes and Specific Heat.

Examples include

Angular Acceleration Unit Conversion
Capacitance Unit Conversion
Charge Unit Conversion
Illuminance Unit Conversion
Magnetic Flux Unit Conversion
Thermal Conductiviey Unit Conversion
Voltage Conversion



FREQUENCY AND WAVELENGTH CALCULATOR - S.F. Lott For more information see WWW Ham Calculators or Steven F. Lott's Home Page

Examples of over '15' Ham Operators Calculators include

555 Multivibrator (Oscillator)

Attenuator (Helps design a simple T-section or Pi-network attenuator)

LC Resonant Circuit (Helps design a resonant LC circuit for a given frequecy or wavelength.)

Air-Core Coil Design



INTERACTIVE AMPLITUDE MODULATION (JAVA APPLET) - Agilent Technologies "Interactively explore the mathematical model behind amplitude modulation. Change the carrier frequency wc, modulation frequency wm, or degree of modulation m, and see the signal change in the time and frequency domains. Change the visual look of the AM signal in either the time or frequency domains and see the variables change." For more information see Agilent Technologies



INTERACTIVE FREQUENCY MODULATION (JAVA APPLET) - Agilent Technologies "Interactively explore the mathematical model behind frequency modulation. Change the carrier frequency wc, modulation frequency wm, or modulation index m, and see the signal change. Change the visual FM signal graph and see the variables change." For more information see Agilent Technologies



LC TUNED CIRCUIT RESONANT FREQUENCY CALCULATOR - Deephaven, Newbury, U.K. "Type in the L and C values, selecting the units (Microfarads, Nanofarads, Picofarads, Henries, Milihenries, Microhenries, Nanohenries, Hertz, Kilohertz, Megahertz, Gigahertz) you wish to use..." For more information see Deephaven



WHEATSTONE BRIDGE (JAVA APPLET) - D. Wiarda "Measure an unknown resistance ." For more information see Doro Wiarda's Home Page



VOLTAGE-CURRENT-RESISTANCE-POWER CALCULATOR (JAVASCRIPT) - OPAMP LABS Inc., Los Angeles, CA For more information see OPAMP LABS Inc

Other Calculators include

Resistance-Frequency-Capacitance Calculator

Capacitance-Frequency-Inductance Calculator

dbm-Voltage-Impedance

Zener Voltage Regulator Calculator



WIRE WHEEL CALCULATOR (JAVA APPLET)) - N. DeBaggis, DeBaggis Electric Co. "Circuit.class A class for computing the basic electrical calculations, similar to the electrician's "Wire Wheel". Calculates Amps, Volts, Ohms and Power." For more information see DeBaggis Electric Co. or DeBaggis Electric Co.



Digital Filter Design


BUTTERWORTH LOWPASS AND HIGHPASS FILTER SYNTHESIS CALCULATOR - M. Froding For more information see Max Froding's Home Page



INTERACTIVE DIGITAL FILTER DESIGN - CALCULATORS - T. Fisher, Department of Computer Science, University of York, Canada VERY VERY EXTENSIVE. For more information see Tony Fisher's Home Page

Some examples include

Infinite Impulse Response (IRR): Butterworth/Bessel/Chebyshev Filters

Infinite Impulse Response (IRR): Proportional-Integral Filters

Finite Impulse Response (IRR): Hilbert Transformers



Diffraction


BRAGG'S LAW & DIFFRACTION: HOW WAVES REVEAL THE ATOMIC STRUCTURE OF CRYSTALS (JAVA APPLET) - K.A. Lukin, Computer Science Department, Stony Brook, State University of New York "This applet demonstrates Bragg's Law for diffraction of Xrays. You can change the distance between atoms, the angle of diffraction, and the wavelengths of coming in waves." For more information see Java Project



Discrete Systems


DISCRETE SYSTEM VIEWVER (JAVA APPLET) - Pieere-Martin Tardif, Departement de genie electrique et de genie informatique, Université Laval, Québec, Canada "Visualizing the "z-transform" when designing discrete systems." For more information see Pierre-Martin Tardif's Home Page



Electricians Toolbox


ELECTRICIANS CALCULATORS (JAVA & JAVA APPLETS) - G.C. Newton, Electrician.com VERY VERY EXTENSIVE. Multimedia Courses, Tutorials & Interactive Java & Java Applets. For more information see Electrician.com

Some examples from over "20" Calculators include

Cable Tray Pulling Tension Calculator

Raceway Pulling Tension Calculator (Wire Pull Calculator)

Part !: Using Vectors to Approximate the Neutral Current in a Three Phase Power System (Java Applet)



CONDUIT BENDING CALCULATORS - Porcupine Labor Press "...The user can enter sample dimensions for the type of bend, and the calculator will give the desired measurements..." For more information see Porcupine Labor Press

Examples include

Offset Bends

Segment Bends



PIPE AND TUBE BENDING CALCULATOR - W.C. Corwin "...Type the input value in a box, click your mouse anywhere on the page other than a value likely to change (or press tab key) to complete..." For more information see William C. Corwin's Home Page



Electromagnetic Forces


ELECTRIC FIELDS: EXPLORING (JAVA APPLET) - M. Busque, M. Dion, D. Michaud & M. Sheaff, Université Laval, Québec, Canada English & French. "Place punctual electric charges and visualize the effect of the electric field they create!"



ELECTROMAGNETIC MODELING (JAVA APPLET) - Electromagnetic Compatibility Laboratory, University of Missouri-Rolla VERY EXTENSIVE. For more information see the Electromagnetic Compatibility Laboratory

Some examples from over "15" calculators include

PCB Trace Impedance Calculator

Inductance Calculations



ELECTROMAGNETIC THEORY (JAVA APPLETS) - W.K. Chan, Department of Electrical & Computer Engineering, University of Iowa For more information see Physics Applets or Wiston K. Chan's Home Page



ELECTROMAGNETIC WAVES (JAVA APPLETS) - Amanogawa VERY EXTENSIVE. For more information see Applets or Amanogawa

Some examples from over '5' Applets include

Polarization

Oblique Incidence on a Dielectric Interface



FIELDS AND WAVES (JAVA APPLETS) - A. Traidman, Department of Electrical and Computer Systems Engineering, Rensselaer Polytechnic Institute VERY EXTENSIVE. For more information see Fields & Waves Home Page

Some examples from over '6' Applets include

Propogation of an Electromagnetic Wave

Electric field due to point charge

Wave Interference



Electromagnetic Spectrum


ELECTROMAGNETIC SPECTRUM CALCULATOR (JAVA APPLET) - The Sydney Regional Scientific Visualisation Laboratory, University of Sydney, Australia For more information see The Electromagnetic Spectrum or the The Light Guide



SPECTRALCULATOR - ELECTROMAGNETIC SPECTRUM CALCULATOR - Jeff Bondono VERY EXTENSIVE. Includes: Wavelength, Frequency, Energy & Temperature - Units, Emission, Redshift (z) & Reception. For more information see Jeff Bondono's Home Page



Floating Point Performance


LINPACK BENCHMARK - J. Dongarra, Computer Science Department, University of Tennessee "The Linpack Benchmark is a numerically intensive test that has been used for years to measure the floating point performance of computers." For more information see Jack Dongarra's Home Page



Four-Bar


A FOUR-BAR LINKAGE APPLET - A.R. Jackson & P. Toth, School of Computer Science, McGill University, Canada "Note that the applet below allows you to start off with a simple, non-convex four-bar linkage and turn it into a convex four-bar linkage by flexing the linkage..." For more information see The Simple, Non-Convex Four-Bar Linkage or the School of Computer Science



FOUR-BAR LINKAGE ANALYSIS AND SYNTHESIS - H.H. Cheng, Integration Engineering Laboratory (IEL), U.C. Davis, Davis, CA VERY EXTENSIVE. For more information see CAD/CAM on the Internet and Distance Learning or the Integration Engineering Laboratory (IEL)

Some examples from overf "20" Calculators include

Interactive Four-Bar Linkage Analysis

Multiloop Linkage Analysis

Interactive Four-Bar Linkage Angular Velocity Analysis

Interactive Four-Bar Linkage Position Synthesis



FOURBAR LINKAGE APPLET - S. Peterson, School of Engineering, Vanderbilt University "This applet is designed to illustrate the kinematic geometry of a fourbar linkage. While performing an analysis of the linkage, it can display the initial position, the limit positions, instant centers and displacement poles." For more information see ME270 Advanced Mechanisms and Design; Department of Mechanical Engineering or the School of Engineering, Vanderbilt University

Other Calculators/Applets include a

Fourbar Linkage Analyzer



Fourier


FOURIER SYNTHESIS - M. Thole, Institut für Netzwerktheorie und Schaltungstechnik, TU Braunschweig, Bundesrepublik Deutschland (Germany) "A periodic signal can be described by a Fourier decomposition as a Fourier series, i. e. as a sum of sinusoidal and cosinusoidal oscillations. By reversing this procedure a periodic signal can be generated by superimposing sinusoidal and cosinusoidal waves." For more information see Java Display Case or Manfred Thole's Home Page



Gravity & Other Forces


GRAVITY SIMULATION (JAVA APPLET) - Department of Physics, Syracuse University Multimedia JAVA Tutorials (Text & Images). For more information see Interactive Simulations; Physics Courses or the Department of Physics







Harmonics


HARMONICS CALCULATOR - Microvolt Company "The following calculator can be used to calculate, 1st through 15th harmonic of any fundamental frequency." For more information see Microvolt Company



HARMONIC WAVEFORM CALCULATOR (JAVA APPLET) - Hao Shi, Electromagnetic Compatibility Laboratory, University of Missouri-Rolla VERY EXTENSIVE. For more information see the Electromagnetic Compatibility Laboratory



ONLINE AM TRANSMITER HARMONICS CALCULATOR - A.D. Kass For more information see Online Broadcast Engineering Related Calculators or Allen's Engineering Home Page



Heat Transfer


ONLINE HEAT TRANSFER MODELLING - Microelectronics Heat Transfer Laboratory For more information see Microelectronics Heat Transfer Laboratory, University of Waterloo, Canada

Examples of Interactive Calculators include

Thermal Fluid Properties Calculator

Special Functions Calculator

Spreading Resistance of Isoflux Rectangles and Strips on Compound Flux Channels



THERMAL RESISTANCE CALCULATOR - Z. Chang, Department of Electrical & Computer Engineering, North Carolina State University For more information see SimCal: PCP Caclculation or the Department of Electrical & Computer Engineering



Impedance, Inductance and Capacitance


CAPACITANCE-FREQUENCY-INDUCTANCE CALCULATOR - OPAMP LABS Inc., L.A. For more information see OPAMP LABS Inc

Examples of Other Calculators include

Resistance-Frequency-Capacitance Calculator



INDUCTANCE CALCULATORS - Electromagnetic Compatibility Laboratory, University of Missouri-Rolla VERY EXTENSIVE. For more information see the Electromagnetic Compatibility Laboratory

Some examples from over "8" Calculators include

Round-Wire Loop Geometries - Square Loop Calculator

Round-Wire Loop Geometries - Equilateral Triangle Loop Calculator

Transmission Line Geometries - Round Wire over a Ground Plane Calculator



IMPEDANCE CALCULATOR (JAVA APPLET) - H. Broeders, Technische Hogeschool Rijswijk (Rijswijk Institute of Technology), Rijswijk, The Netherlands "...calculate the impedance graph of a passive electrical network." For more information see Harry Broeders' Home Page



IMPEDANCE AND CAPACITANCE OF TRACE ON PCB - Z. Chang, Department of Electrical & Computer Engineering, North Carolina State University "...This javascript based calculator can calculate characteristic Impedance and Capacitance of trace on PCB, under different situation:microstrip, embedded microstrip, stripline, dual stripline and asymmectrical stripline..." For more information see SimCal: PCP Caclculation or the Department of Electrical & Computer Engineering

Examples from "7" Calculators include

Microstrip Characteristic Impedance and Capacitance Calculator

Dual Stripline Characteristic Impedance and Capacitance Calculator

Differential Impedance of Microstrip



IMPEDANCE AND CAPACITANCE CALCULATORS - Automata Inc. For more information see Engineering Tools; Automata - Printed Circuit Technology



INTERCONNECT SERIES IMPEDANCE CALCULATOR: RIBBON METHOD EXAMPLE - D.P. Neikirk, E. Tuncer & S. Kim, MicroElectromagnetics Device Group, Electrical and Computer Engineering, University of Texas, Austin, Texas "Ribbon method is a modified filament calculation which replaces conductors with impedance shells and calculates external fields with respect to surface current flowing on these shells." For more information see Electromagnetic Behavior of IC Packaging, Interconnect, and Transmission Line Devices or the MicroElectromagnetics Device Group



ONLINE IMPEDANCE CALCULATORS - Westak For more information see the Technology Center or Westak

Some examples include

Dual Stripline Impedance Calculator

Microstrip Impedance Calculator



PCB TRACE IMPEDANCE CALCULATORS - Electromagnetic Compatibility Laboratory, University of Missouri-Rolla VERY EXTENSIVE. For more information see the Electromagnetic Compatibility Laboratory

Some examples from over "5" Calculators include

Embedded Microstrip Trace Impedance Calculator

Stripline Impedance Calculator

Asymmetric Stripline Impedance Calculator



THE IN-CIRCUIT DESIGN INTERACTIVE MULTILAYER IMPEDANCE CALCULATOR - In-Circuit Design (ICD) Pty Ltd., Australia VERY EXTENSIVE. Includes: 4,6,8,10 & 12 Layer Board Calculators. For more information see In-Circuit Design (ICD) Pty Ltd.

Examples of Calculators include

4 Layer Board

8 Layer Board

12 Layer Board



Linear Programming & Algorithms


INTERACTIVE LINEAR PROGRAMMING - RIOT, Industrial Engineering & Operations Research, U.C. Berkeley For more information see Operations Research Tools; Applications; Remote Interactive Optimization Testbed or Industrial Engineering & Operations Research



THE SIMPLEX METHOD: A METHOD OF SOLVING LINEAR PROGRAMMING - The Optimization Technology Center, Argonne National Laboratory and Northwestern University Multimedia Interactive Tutorial (Text & images). "Users can select the size of the problem that they want to solve (up to 7 variables and 7 constraints), enter the data, and watch the simplex method go through each step of each iteration of the method." For more information see NEOS Guide: Case Studies; NEOS Guide Overview or The Optimization Technology Center



THE SIMPLEX PLACE! AN INTRODUCTION TO THE SIMPLEX METHOD - M. Sniedovich, Department of Mathematics & Statistics, The University of Melbourne. Parkville, Australia "In this discussion we examine the Simplex Method from the vantage point of the good old Gaussian elimination procedure for the solution of systems of linear equations." For more information see Moshe's Place or the Department of Mathematics & Statistics



VIRTUAL DUALITY - LINEAR PROGRAMMINGV - M. Sniedovich, Department of Mathematics & Statistics, The University of Melbourne. Parkville, Australia "For your convenience we provide a portable duality machine that will enable you to construct the duals of small linear programming problems." For more information see Moshe's Place or the Department of Mathematics & Statistics



LT Calculator


LT CALCULATOR - K. Foltz, M. Franceschetti & V. Koosh, Micro Systems, Department of Electrical Engineering, Division of Engineering and Applied Science, California Institute of Technology VERY EXTENSIVE. "You can then convert the weights to integers, compute the function given an input, convert and then reduce the weights or compare the two functions." For more information see Kevin Foltz's Home Page; Vincent Koosh's Home Page or the Micro Systems Home Page



Microstrip


MICROSTRIP CALCULATOR (JAVA) - M. Froding "Calculate the impedance of microstrip lines." For more information see Max Froding's Home Page



MICROSTRIP ANALYSIS/SYNTHESIS CALCULATOR - D. McMahill, Microsystem Technology Laboratories, MIT "Analyze the electrical properties of microstrip transmission lines based on physical dimensions. Synthesize the physical dimensions required to meet a given characteristic..." For more information see Microstrip Analysis/Synthesis Calculator Home Page; Engineering Software or Dan McMahill's Home Page



Microwave


COAXIAL CABLE ATTENUATION & POWER HANDLING CALCULATOR - Times Microwave Systems "The calculator above can be used to estimate the attenuation (dB loss), power handling capability, and transmission efficiency for some of the more popular Wireless Communications and MIL Spec cables at the frequency of interest." For more information see Site Index or Times Microwave Systems



Mixer Applications


MIXER SPUR CHART CALCULATOR (JAVA APPLET) - A. Roetter & D. Belliveau "Single-Tone IMD Analysis via the Web...The job of this simulator is to calculate and display both frequency and power level information for a given mixer application...This spur calculator can be useful to engineers designing systems that utilize double-balanced mixers as either upconverters or downconverters..." For more information see Hittite Microwave Corporation



Motors


AC MACHINE: GENERATION OF A ROTATING FLUX WAVE (JAVA APPLET) - S. Kock, Institute of Control Engineering, Department of Engineering, Technische Universität Braunschweig, Bundesrepublik Deutschland (Germany) "How a travelling flux wave can be created in an ac machine." For more information see Java Pages; Institute of Control Engineering or the Technische Universität Braunschweig



INDUCTION MOTOR IN STEADY STATE - VECTOR DIAGRAM (JAVA APPLET) - S. Kock, Institute of Control Engineering, Department of Engineering, Technische Universität Braunschweig, Bundesrepublik Deutschland (Germany) For more information see Java Pages; Institute of Control Engineering or the Technische Universität Braunschweig



NEMA MOTOR DATA CALCULATOR - Square D "Welcome to the Square D Motor Data Calculator! It's the easiest way to get Wire and Conduit information for any motor: single phase or three phase." For more information see Engineering Software or Square D



SLOW MOTION INDUCTION MACHINE (JAVA APPLET) - S. Kock, Institute of Control Engineering, Department of Engineering, Technische Universität Braunschweig, Bundesrepublik Deutschland (Germany) "Here students can experience interactively, how load, friction and speed interact with slip and stator current of an induction motor with speed controller." For more information see Java Pages; Institute of Control Engineering or the Technische Universität Braunschweig



Network (IP, Subnet etc.)


FOR NETWORKING COURSES, MANUAL & DATABASES SEE COMPUTER SCIENCE: NETWORKING


DARYL'S SUBNET CALCULATOR - D. Banttari VERY EXTENSIVE. For more information see Daryl's TCP/IP Primer



NETWORK CALCULATORS - P. van den Steen, SubnetOnline.Com VERY VERY EXTENSIVE. For more information see SubnetOnline

Some examples from over "8" Networking Calculators include

IP Subnet Calculator

A very detailed subnet calculator to generate a list of subnets

Within a subnet, what address should a router be installed



NETWORK CALCULATORS: SUBNET MASK & NETWORK/NODE - A. Vonkeman & V. Tejada For more information see Sparkman's World



NETWORK PERFORMANCE CALCULATOR (JAVA APPLET) - Spectra Logic Corporation "The Performance Calculator applet currently takes system parameters and determines if bottlenecks exist based upon the network backup window specified." For more information see Spectra Logic Corporation



SUBNET CALCULATOR - T. Furman, Tactix ReEngineering, Inc. For more information see Tactix ReEngineering, Inc.



Neural Networks


APPLETS FOR NEURAL NETWORKS AND ARTIFICIAL LIFE (ENGLISH VERSION) OR (JAPPANESE VERSION) - A. Utsugi, Human Informatics Department, National Institute of Bioscience and Human-Technology, Japan Index of Applets, Simulations, & Calculators WW. For more information see Akio Utsugi's Home Page or Artificial Neural Network Lab



ARTIFICIAL NEURAL NETWORK HANDWRITING RECOGNIZER (JAVA APPLET) - B. Mitchell "Handwriting recognition applet using a multi-layer feedforward artificial neural network." For more information see Robert Scott Mitchell's Web Site



DYNAMIC ASSOCIATIVE NEURAL MEMORY SIMULATOR (JAVA APPLET) - D. Clark For more information see David Clark



NEURAL NET CONCEPTS (JAVA APPLET) - Computation and Neural Networks Laboratory. Department of Electrical & Computer Engineering, College of Engineering, Wayne State University For more information see Computation and Neural Networks Laboratory

Examples from over '20' Applets include

Competitive Learning-Based ClusteringL

Extreme Point Machine (EPM): 2-D 2-Class VersionL

2D Time Dynamical System



OPTICAL CHARACTER RECOGNITION (OCHRE): USING NEURAL NETWORKS IN JAVA (JAVA APPLET) - J. Tiscione For more information see Jason Tiscione's Java Applet Index



SVM (JAVA APPLET) - Lucent Technologies & Bell Laboratories "With this Java applet you can interactively enter data for a two-class classification problem, choose an SVM, and see how that SVM separates your data." For more information see Automated Statistical Services Page



WEB APPLETS FOR INTERACTIVE TUTORIALS ON ARTIFICAIL NEURAL LEARING (JAVA APPLET) - F. Corbett, Department of Electrical & Computer Engineering, University of Manitoba, Winnipeg, Manitoba, Canada "The goal of this project was to demonstrate some elementary aspects of artificial neural networks (ANNs) in an interactive and, hopefully, interesting manner." For more information see Fred Crobett's Homepage or the Department of Electrical & Computer Engineering

Examples include

Artificial Neuron Applet

Preceptron Learning Applet



Oscilloscope


BASIC FUNCTION OF AN OSCILLOSCOPE - Ku-Kwun Hwang, Department of Physics, National Taiwan Normal University, Taipei, Taiwan VERY EXTENSIVE. For more information see Virtual Physics Laboratory (Java Applets)



OHMS Law


OHM'S CLACULATOR - J. Adams, Internet Guide to Electonics VERY EXTENSIVE. Also availabe is Ohm's Law Explained. For more information see Internet Guide to Electonics



OHM'S LAW CALCULATORS - Mc Squared System Design Group, North Vancouver, BC, Canada Calculate Voltage, Current & Resistantce. For more information see JavaScript Features Page or Mc Squared System Design Group



VIRTUAL LIGHT BULB: OHMS LAW (JAVA APPLETS) - S. Russell, G. Bothun & A. Hulse, University of Oregon "Discover OHMS law by using different combinations of Voltage and Resistance and constructing a circuit that activates the Virtual lightbulb. " For more information see the Virtual Laboratory



WATTS/OHMS/VOLTS/RESISTOR CALCULATORS - G. C. Newton, Electrician.com For more information see Electrician.com



Petri-Net


ESSER'S PETRI NET BROWSER (JAVA APPLET) - R. Esser, Department of Computer Science, University of Adelaide, Adelaide, Australia For more information see Java Tools; Tools on the Web; The World of Petri Nets or Robert Esser's Home Page



jPNS: THE PETRI-NET-SIMULATOR (JAVA APPLET) - T. Bräunl, Department of Electrical & Electronic Engineering, University of Western Australia, Perth, Australia "PNS is a simple simulation system for extended place/transition Petri nets." For more information see Thomas Bräunl's Home Page or the Department of Electrical & Electronic Engineering



PATRICE'S PETRI NET JAVA APPLET - T. Patrice, VR & Computer Graphics Research Group, Toulouse Computer Science Research Institute, France For more information see Java Tools; Tools on the Web; The World of Petri Nets or Torhuet Patrice's Home Page



Photoelectric Effect


PHOTOELECTRIC (JAVA APPLET) - M. Vershinin VERY EXTENSIVE. "This applet is supposed to teach a person about the basics of photoelectric effect." For more information see M. Vershinin's Home Page



Photon Energy


CALCULATOR FOR WAVELENGTH, FREQUENCY AND ENERGY OF PHOTON - H. Chen, Department of Physics & Astronomy, Ohio University "This page converts a photon wavelength, in angstroms, to its photon energy in electron volts (eV)." For more information see Hong Chen's Home Page



Photovolataic/Solar


PHOTOVOLATAIC (PV) SYSTEM DESIGN CALCULATOR - M.P. Reed VERY VERY EXTENSIVE. Calculators include: "Systems Voltage; Load Voltage 120 VAC; Load Voltage 240 VAC; Electric Load Summary; Battery Bank Sizing; & Array Sizing." For more information see SolarScript or Solar Mike's Web Site



SILICON SOLAR CELL CALCULATOR/SIMULATION - Institute of Electrical Power Engineering/ Institut für Elektrische Energietechnik, Technische Universität Berlin, Berlin, Bundesrepublik Deutschland (Germany) "Test the behaviour of silicon solar cells by changing the parameters of the characteristic curve!" For more information see Solar Energy Course; Index; Institute of Electrical Power Engineering or the Technische Universität Berlin

Examples of other Calculators includes

Characteristics of a Solar Cell



Power/Transformers/Generators


CONVERTER POWER FACTOR CALCULATOR - J.H. Galloway & Associates, Brookfield, CT "This calculator gives the real and reactive power requirements for line commutated rectifiers and inverters." For more information see Calculators or J.H. Galloway & Associates



KVA QUICK CALCULATOR: TRANSFORMER - Northern Breakers and Electrical Supply, Summerstown, Ontario, Canada VERY EXTENSIVE. For more information see Northern Breakers and Electrical Supply



KVAR CALCULATOR: ONLINE CAPACITOR - Amber Capacitors "This table will calculate the Capacitor kVAr..." For more information see Amber Capacitors



KVAR CALCULATOR - ARCO Electric Products, Shelbyville, IN "...aid you with sizing your capacitor requirements." For more information see ARCO Electric Products



POWER FACTOR IMPROVEMENT CALCULATOR - Northern Breakers and Electrical Supply, Summerstown, Ontario, Canada VERY EXTENSIVE. "Simply enter your existing power factor, the desired power factor, and the total connected load (in kilowatts) and press GO!. This utility will automatically calculate the required KVAR's." For more information see Northern Breakers and Electrical Supply



POWER FACTOR CORRECTION FILTER CALCULATOR - J.H. Galloway & Associates, Brookfield, CT "This calculator is intended to cover single stage harmonic filters used with six pulse, line commutated three phase power converters in industrial applications." For more information see Calculators or J.H. Galloway & Associates



POWER QUANTITIES CALCULATORS - Canadian Generator Manufacturer, Toronto, Ontario, Canada VERY EXTENSIVE. Calculators include: Calculating Ampere (I), given kVA; Converting kVA to kW; Converting kW to kVA; Converting kW to HP & What size Gen-set is needed to start a 3 phase electric motor Direct on Line (DOL) start Calculator. For more information see Canadian Generator Manufacturer



Power Electronics


INTERACITVE POWER ELECTRONICS ONLINE TEXTBOOK - V. Ramaswamy, Faculty of Engineering, University of Technology, Sydney, Australia Multimedia Textbook (Text, Images & Applets). VERY VERY EXTENSIVE. "Power electronics refers to control and conversion of electrical power by power semiconductor devices wherein these devices operate as switches." For more information see Venkat Ramaswamy's Homepage or the Faculty of Engineering

Some examples of Chapters which also include '12' Interactive Applets

Introduction to Power Electronics

Fully-controlled Three-Phase SCR Bridge Recitifier with Applications

Fully-controlled Single-Phase SCR Bridge Recitifier with Applications



ONLINE POWER DESIGN CALCULATORS (JAVA APPLETS) - PowerDesigners, LLC VERY EXTENSIVE. "Innovattive solutions for the power electronics industry" For more information see PowerDesigners, LLC

Some examples include

IGBT Inverter Design Calculator

DC Choke Design Calculator



SWITCHED MODE POWER SUPPLY - CALCULATORS - B. Suppanz

Some examples include

PCB Trace Width Calculator

RMS Calculations



Quantum Computers


QUASI - QUANTUM CIRCUIT SIMULATOR (JAVA APPLET) - M. Eck & P. Wocjan, Institut für Algorithmen und Kognitive Systems (IAKS), Fakultät für Informatik, Uinversität Karlsruhe, Germany VERY EXTENSIVE. "...a general purpose quantum circuit simulator written at the Universtiy of Karlsruhe. The user is able to build and simulate quantum circuits in a graphical user interface..." For more information see QuaSi's Home Page or the Institut für Algorithmen und Kognitive Systems (IAKS)



Quartz


QUARTZ PROPERTIES DATABASE - GE Quartz, Inc., General Electric Company "Quartz is a glass (vitreous silica) that exhibits unique properties. These properties make quartz ideally suited for applications where high purity is required or where the use temperature is high..." For more information see GE Quartz



QUARTZ TOOLBOX (JAVA APPLET) - GE Quartz, Inc., General Electric Company For more information see GE Quartz

Examples of online Calculators include

Material Compactor

Sag Deflection Chart Calculator

Transmission Calculator







Raceway Fill


CABLE RACEWAY FILL CALCULATOR - G. C. Newton, Electrician.com For more information see Electrician.com



RACEWAY FILL CALCULATOR: CONDUCTORS - G. C. Newton, Electrician.com For more information see Electrician.com



Radio Design


AMATEUR RADIO AND AUDIO CALCULATORS - Wirral, U.K. VERY VERY EXTENSIVE. For more information see the Amateur Radio on the Wirral or the John's Home Page

Some examples from over "20" calculators include

Antenna EiRP Estimator

Single-Layer Coil Designer

PMR Crystal Calculator

Op-Amp Circuit Designe

Audio Pre-Amplifier Design



Receivers


RECEIVER MODEL TOOL: CALCULATOR (JAVA APPLET) - Anadigics VERY EXTENSIVE. "This model will calculate gain, noise figure, dynamic range, and other system parameters." For more information see Engineering Room or Anadigics

Other Calculators include

The Transimpediance Amplifier Tool (JAVASCRIPT)



Resistors


CALCULATE RESISTOR VALUES FROM COLOR CODES (JavaScript) - R. Nowland, Australia For more information see Robert Nowland's Home Page



CALCULATE RESISTOR VALUES FROM COLOR CODES (JavaScript) - D. Goodman For more information see Danny Goodman's JavaScript Pages



COLOR CODED RESISTANCE CALCULATOR (JAVA SCRIPT) - J.B. Lukin, Department of Electrical Engineering, University of Pennsylvania For more information see Undergraduate Labortory or the Department of Electrical Engineering



RESISTANCE CALCULATOR (JAVA APPLET) - T. van Niekerk, South Africa For more information see Theo's South African Java Page



RESISTOR COLOR CLACULATOR - J. Adams, Internet Guide to Electonics VERY EXTENSIVE. Also availabe is Ohm's Law Explained. For more information see Internet Guide to Electonics



RESISTOR COLOUR CALCULATOR II - Wirral, U.K. For more information see the Amateur Radio and Audio Calculators; Amateur Radio on the Wirral or the John's Home Page



RESISTOR COLOR CODE CALCULATOR - G. C. Newton, Electrician.com For more information see Electrician.com



RESISTER VALUE CALCULATOR - US Army Flexible Computer Integrated Manufacturing, Component Identification Tool & Hosted by F.R.F. Aragão, Física 3 Experimental, Instituto de Física, Universidade de Brasília, Brasília (Brazil) VERY EXTENSIVE. For more information see Fisica 3 Experimental or the Instituto de Física



RESISTORS (JAVASCRIPT) - Carlos Lazarini Fonseca VERY EXTENSIVE. For more information see Welcome to the Cape Old Radio or Carlos Lazarini Fonseca's Home Page



THE PATH OF LEAST RESISTANCE: A RUDIMENTARY RESISTOR IDENTIFIER - D. Goodman For more information see Danny Goodman's JavaScript Pages



Robotics


ROBOTIC ARM CONTROL (JAVA APPLET) - M. Karweit, Department of Chemical Engineering, Johns Hopkins University "...Here we want to consider the problem of controlling the motion of a very simple articulated arm..." For more information see Virtual Engineering



ROBOSIM (JAVA APPLET) - T. Bräunl, Mobile Robot Lab., Department of Electrical & Electronic Engineering, University of Western Australia, Perth, Australia "RoboSim is a very simple simulation system for a 6 degres of freedom robot manipulator." For more information see Thomas Bräunl's Home Page or the Department of Electrical & Electronic Engineering



VISUAL NAVIGATION: ROBOTICS (JAVA APPLET) - Institute of Robotics and Mechatronics, Robotic Systems/Institut für Robotik und Systemdynamik, Deutsches Zentrum für Luft- und Raumfahrt, DLR e.V., Germany For more information see Mobile Robotics



Scanners


SCANNING RESOLUTION CALCULATOR - J. Bone For more information see Tips and Techniques of Image Scanning



SULLIVANS SCANNING CALCULATOR - M.J. Sullivan VERY EXTENSIVE. Calculators include: Continuous Tone Output; Halftone Output; and Bitmap (Line Art) Output. For more information see Sullivan's Online Scanning Resource Website



Semiconductors & Microelectronics


Materials & Properties


EDUCATIONAL APPLETS IN ELECTRICAL ENGINEERING - C.R. Wie, Electrical and Computer Engineering Department, SUNY, Buffalo, NY VERY EXTENSIVE. For more information see Educational Java Applet Service or Electrical and Computer Engineering Department

Some examples from over "30" Applets/Calculators include

ÝZincblende and Diamond structures (ÝGaAs, Si, etc.) : unitcell with lists of material property

AlGaAs band diagram and E-K diagram

Haynes-Shockley Experiment: diffusion, drift and recombination



SILICON RESISTIVITY AND CARRIER CONCENTRATION CALCULATOR - R. Dvorak, Solecon Laboratories, Inc. "To calculate carrier concentration values, we use carrier mobility values derived from Thurber, Mattis, Liu, and Filliben, National Bureau of Standards Special Publication 400-64,..." For more information see Spreading Resistance Analysis or Solecon Laboratories, Inc.



Semiconductors & Microelectronics


Devices


APPLETS AND MORE AT TECH - Technische Grundlagen der Informaitk, Universität, Hamburg, Bundesrepublik Deutschland (Germany) VERY EXTENSIVE. For more information see Group TECH or Universität, Hamburg

Some Examples of Device Applets include

CMOS:

Java CMOS gate demonstration


KV:

Java KV diagram and logic minimization demonstration


PRIMA Simulator: die PRImitive MAschine:

The Prima Virtual Machine



IGBT BASED VOLTAGE SOURCE INVERTER (VSI) LOSS CALCULATOR (JAVA APPLET) - PowerDesigners, LLC "...allows the user to calculate the total semiconductor losses for an IGBT based Voltage Source Inverter (VSI) along with the required heat sinking." For more information see Design Calculators or PowerDesigners, LLC



INDUCTOR DESIGN CALCULATOR (JAVA APPLET) - PowerDesigners, LLC "This design sheet is optimized for DC inductor design utilizing E-cores. The core data used in this sheet are based on the Micrometals iron powder cores." For more information see Design Calculators or PowerDesigners, LLC



SEMICONDUCTOR PHYSICS (JAVA APPLETS) - W.K. Chan, Department of Electrical & Computer Engineering, University of Iowa For more information see Wiston K. Chan's Home Page

Some examples from over "6" Applets include

Carrier Concentration and Fermi Level Applet

Band Diagrams for Semiconductor Heterostructures

MOS Capacitor Applet



SOLID STATE MATERIALS AND DEVICES: EDUCATIONAL APPLETS IN - C.R. Wie, Electrical and Computer Engineering Department, SUNY, Buffalo, NY VERY EXTENSIVE. For more information see Educational Java Applet Service or Electrical and Computer Engineering Department

Some Examples from over "30" Applets include

PN Junction Diode:

PN Junction Diode

Formation of a PN Junction Diode and its Band Diagram !


Metal-Oxide-Semiconductor (MOS) FET and CMOS Gate Problems:

CMOS Inverter Operation


Transistors:

n-channel MOSFET output characteristics



Signals, Systems & Controls


DEMONSTRATIONS IN SIGNALS, SYSTEMS & CONTROLS (JAVA APPLETS) - Project Director: W.J. Rugh, Department of Electrical and Computer Engineering, Johns Hopkins University VERY VERY EXTENSIVE. For more information see Department of Electrical and Computer Engineering

Some examples from the more than '12' Applets include

Bode Servo Analysis (Time Delay)

Fourier Series Approximation

Magnitude and Phase Spectra



SIGNAL PROCESSING CALCULATORS (JAVA APPLETS) - Signal Processing Laboratory. College of Engineering, Florida State Univeristy VERY EXTENSIVE. For more information see Signal Processing Laboratory

Some examples include

Parameter Calculator for Typical Antennas

Transmission Lines Parameters Calculator



Software Development


BASIC COCOMO - Cost Estimating Group, Business Management Directorate, Lyndon B. Johnson Space Center, NASA, Houston, Texas "This is a simple on-line model for estimating the number of person-months required to develop software." For more information see Online Cost Models; Cost Estimating Group or the Business Management Directorate



COCOMO COST ESTIMATOR - L. Brunnet, A.K. Chen, H. Dave, J. Flinn & J. Ziegler, Department of Computer Science, Texas A&M University "COCOMO is a screen-oriented, interactive software package that assists in budgetary and schedule estimation of a software project." For more information see The COCOMO Model Implemented - Home Page Course Projects or the Department of Computer Science



Spectrum Analysis


SPECTRAL ANIMATIONS - INTERACTIVE EXPERIMENTS (JAVA APPLETS) - Educators Corner, Agilent Technologies VERY EXTENSIVE. For more information see Experiments; Educator's Corner or Agilent

Some examples from over "10" Applets include

IQ Modulation

Generating Pulses

Superheterodyne Spectrum Analyzer



SPECTRUM ANALYSIS (JAVA APPLET) - Department of Electrical Engineering, City University of Hong Kong VERY EXTENSIVE. For more information see User Guide for Spectrum Analysis; Java Based DSP Demo or Department of Electrical Engineering



SPECTRUM ANALYSIS TUTORIAL (JAVA APPLET) - Institute for Signial and Information Processing, Mississippi State University VERY EXTENSIVE. Requires Java Plug-in 1.3. For more information see Demos: Signal Processing; Automatic Speech Recognition or the Institute for Signial and Information Processing



Speech Recognition


AUTOMATIC SPEECH RECOGNITION (JAVA APPLETS USING JAVA PLUG-IN 1.3) - Institute for Signial and Information Processing, Mississippi State University VERY EXTENSIVE. For more information see Automatic Speech Recognition Home Page or the Institute for Signial and Information Processing

Some examples from over "8" Applets include

Pattern Recognition

Speech Recognition

Grammar Compiler



Strain Gages


INTERACTIVE GUIDE TO STRAIN GAGE TECHNOLOGY: CALCULATORS - Measurements Group, Inc. VERY VERY EXTENSIVE. "...The electrical resistance strain gage is a strain-sensitive component bonded to the surface of a test part to measure strain...." For more information see Main Menu; Interactive Guide to Strain Measurement Technology or the Measurements Group

Some examples from over "30" Calculators include

Wheatstone Bridge Output: Equal strains of opposite sign from bending loads

Gage Excitation: Optimizing Strain Gage Excitation Levels

Strain Gage Rosettes: Rosette Data Reduction

Transducer Outputs: Bending Beam - Half Bridge

Transverse Sensitivity Errors: Three-Element Delta (60 deg) Rosettes



TBS-EDS


TBS-EOS CALCULATOR (JAVA APPLET) - Octavian Micro Development Inc. "Lets you calculate the compressiblity factors using the Trebble-Bishnoi-Salim cubic equation of state." For more information see Octavian Micro Development Inc.



Tesla Coil


TESLA COIL CALCULATORS - BHVL Calculators include: Transformer Impedence Calculator; Reactance of Capacitor Calculator; Length of Wire AND Frequency of Coil; Flat Spiral Pancake Primary; Number of Turns for Helical Primary; Plate Type or Rolled Capacitors; Jar or Bottle Type Capacitors; Capacitance of a Sphere in Space & Capacitance of a Toroid. For more information see BHVL or Bart's High Voltage Lab

Some exaples from over "6" calculators include

Transformer Impedence Calculator

Capacitance of a Sphere in Space



Transistors


BUILDING A TRANSISTOR (JAVA APPLET) - Java programming: K.I. Tchourioukanov; Author: M.W. Davidson, Molecular Expressions: Exploring the World of Optics & Mircroscopy, Florida State University "...Explore how an individual Field Effect (FET) transistor is fabricated..." For more information see the Electricty & Magnetism Interactive Java Tutorials or Molecular Expressions: Exploring the World of Optics & Mircroscopy



Transmission Line


DIFFERENTIAL SIGNALING AND DIFFERENTIAL TRANSMISSION LINES - Chip Center Multimedia Interactive Tutorials. VERY EXTENSVIE. "...when we speak of differential signaling we mean circuits where two signals are sent and received with the information conveyed..." For more information see Online Tools or the Chip Center



LATTICE DIAGRAM - Z. Chang, Department of Electrical & Computer Engineering, North Carolina State University "...understanding of reflection response on transmission line..." For more information see SimCal: PCP Caclculation or the Department of Electrical & Computer Engineering



TRANSMISSION LINES (JAVA APPLETS) - Amanogawa VERY VERY EXTENSIVE. For more information see Applets or Amanogawa

Some examples from over '10' Applets include

Interactive Loss-Less Transmission Line

Single Stub Tuning



TRANSMISSION LINES - Chip Center Multimedia Interactive Tutorials. VERY EXTENSVIE. "...in this app note we are concerned with the kind of lines formed by coupled wires operating in what is known as the (transverse-electromagnetic) mode - coax, twisted-pair..." For more information see Online Tools or the Chip Center



TRANSMISSION LINE CALCULATOR - W.C. Crowin For more information see William C. Corwin's Home Page



TRANSMISSION LINE CALCULATOR (JAVA APPLET) - K. Schmidt, Department of Physics and Astronomy, Arizona State University For more information see Kevin Schmidt's Home Page



TRANSMISSION LINE ANALYSIS (JAVA APPLET) - W.S. Brinson, Department of Electrical and Computer Engineering, University of New Brunswick, Fredericton, NB, Canada "The purpose of this applet is to demonstrate the effects of changing the many variables associated with a transmission line." For more information see Resistor & Capacitor Color Codes or Java Applets



TRANSMISSION LINE EFFECTS ON A BUS (JAVA APPLET) - A. Traidman, Department of Electrical and Computer Systems Engineering, Rensselaer Polytechnic Institute For more information see Fields & Waves Applets or Fields & Waves Home Page



TRANSMISSION LINE SIMULATION (JAVA APPLET) - G. Schussman, Visualization and Graphics Research Groups, Center for Image Processing and Integrated Comupting, U.C. Davis For more information see Greg Schussman's Homepage



Turing Machines


INTRODUCTION TO TURING MACHINES (JAVA APPLET) - D. Eck, Department of Mathematics & Computer Science, Hobart and William Smith Colleges, Geneva, N.Y. "The xTuringMachine applet is designed to show Turing machines in action." For more information see Labs & Applets for the Most Complex Machine or David J. Eck's Home Page



STATE MACHINE SIMULATOR (JAVA APPLET) - K. Faenov, Department of Computer Science & Mathematics, Arkansas State University For more information see Computer Science: Calculators & Tutorials or the Department of Computer Science and Mathematics



THE X TURING MACHINE (JAVA APPLET) - D. Eck, Department of Mathematics & Computer Science, Hobart and William Smith Colleges, Geneva, N.Y. "The xTuringMachine applet is designed to show Turing machines in action." For more information see Labs & Applets for the Most Complex Machine or David J. Eck's Home Page



TURING MACHINES (JAVA APPLET) "The ordinary computer is not the only way to build a device capable of computation. This is an introduction to the concept of "Turing machines" and four different computational systems."



Voltage Drop


VOLTAGE DROP CALCULATOR - G. C. Newton, Electrician.com VERY EXTENSIVE. For more information see Electrician.com



VOLTAGE DROP CALCULATOR (JAVA APPLET)) - N. DeBaggis, DeBaggis Electric Co. VERY EXTENSIVE. For more information see DeBaggis Electric Co. or DeBaggis Electric Co.



VOLTAGE DROP CALCULATOR - Internet program created by Nick DeBaggis, DeBaggis Electric and hosted by M. Holt, National Electrical Code Internet Connection For more information see National Electrical Code Internet Connection



Wave


SCHRÖDINGER WAVE EQUATION SIMULATION (JAVA APPLET) - S. Harrington, Department of Physics, Boston University VERY EXTENSIVE. "The purpose of this web site is to develop an understanding of the Schrödinger equation by means of graphical simulations." For more information see Stephen Harrington or the Department of Physics



SUPERPOSITION OF TWO WAVES (JAVA APPLET): MIRROR SITE - Z. Gong Multimedia Interactive Tutorial. "It often happens that two or more waves pass simultaneously through the same region."



WAVEFORM CALCULATOR (JAVA APPLET) - G, H. Sasaki, Ze Li & Vengafai U, Department of Electrical Engineering, University of Hawaii, Manoa, Hawaii "...used to verify trigonometric identities and demonstrate the concept of Amplitude Modulation (AM). The interface allows users to assert inputs, and the output is returned in the form of graphics and audio. For an example, the applet will allow users to plot cosine functions and to hear the functions." For more information see Galen H. Sasaki or the Department of Electrical Engineering



WAVE EQUATION (JAVA APPLET) - G. Zumbusch, SINTEF Applied Mathematics, Oslo, Norway Multimedia (Text & Image). "It serves as a demonstration for a linear scalar wave equation. In x-direction (horizontal) is the string of the violin. u represents the amplitude at that position." For more information see Gerhard W. Zumbusch's Home Page

Other Java Applet's include

Burger's Equation






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EDA, Incorporated provides quality-engineering services on time, on schedule and within budget.  EDA, Inc. is able to do this by performing the work correctly the first time. We accept the most challenging problems and look forward to working with the client as a team member.  EDA believes that the client should be an active participant in the work process to ensure that the product is commensurate with client expectations and is delivered within schedule and budget constraints.

EDA, Inc. belongs to the American Society of Mechanical Engineers (ASME), the National Society of Professional Engineers (NSPE), the Society of Instrument Control Engineers, Society of Professional Engineers (ISA) and the American Nuclear Society (ANS).


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