Monday, August 22, 2011

Circuit Builder with Oscilloscope - Physlets

Simulates AC and DC circuits. Created by by Toon Van Hoecke at the Universiteit Gent. Try out small circuits and see response in Meters and Scope. Using the Java Applet Power.

Install the latest Java jre and use the IE browser. In Control Panel Java-Security add a site exception webphysics.davidson.edu. Then you can see the simulations. (2017 win 10 )

Java 1.1 Physlets

Physlets are simple.  The graphics are simple; each Physlet is designed to deal with only one facet of physical phenomena, and does not incorporate very much in the way of data analysis.  This keeps Physlets relatively small—easing downloading problems over slow network connections—and removes details that could be more distracting than helpful.

Circuit Builder with Oscilloscope - Physlets

Circuitbuilder simulates AC and DC circuits.  It was written by by Toon Van Hoecke at the Universiteit Gent.  Circuit Builder can be used in interactive mode (see above) or it can be scripted using JavaScript (see the demo pages). In order for scripting to work, Circuit Builder requires a Java 1.1 capable browser with JavaScript to Java scripting capability.

Physlets or Physics Applets, are small flexible Java applets designed for science education.

Wednesday, August 17, 2011

CIPCO Energy Library - Electrical Study

Presented in a Easy to understand, layman language. This Energy and Electrical Basics is a must for all who want to save power and lead a Green Lifestyle.
Undertand your Appliance and The Energy Supplier. The way electricity is generated and reaches your home.

CIPCO Energy Library - Electrical Study

A class in basic electricity and how the electric utility industry generates and delivers power to customers. Designed primarily for use by utility field representatives who need to understand electrical principles.

Fundamentals of Electricity Covers the subject of motors from an explanation of how they work, to the advantages/disadvantages of adjustable speed drives, see Motors & Drives section.
Complete descriptive information on closed- and open-loop geothermal heat pump systems. Residential, multifamily and commercial applications are all covered. - Geothermal Heat Pump Systems

Wednesday, August 10, 2011

Accelerometers in Electronics

An accelerometer is a device that measures non-gravitational accelerations. These are accelerations produced by mechanically accelerating the accelerometer via its casing. - Accelerometer Wikipedia

Sci-Spot.com - Accelerometer - An accelerometer is a device which measures acceleration; how fast it's speeding up. In the past an accelerometer could be a complex, bulky piece of equipment, but in
today's world, accelerometers are available as single ic's and use complex microscale machining technology.

The MMA7260Q is a 3-axis accelerometer - Tom Igoe - The MMA7260Q is a 3-axis accelerometer from Freescale Semiconductor.

Balancing robot needs gyroscope and accelerometer

Populated Gryo PCB

ADXRS150 and ADXRS300 piezo-gyroscope integrated circuit, The gyro is very small at about 5mm square (about 0.3 inches square). You can see the small combo gyro PCB mounted vertically in the center section on the balancing robot

ADXL105 Lower-Noise Wider-Bandwidth Accelerometer - The ADXL105, a near-ideal kind of vibration sensor, eliminates significant problems with existing vibration sensors, such as piezoelectric and bulk capacitive sensors. Primary benefits derive from much lower cost, stable sensitivity as a function of frequency and temperature, ruggedness, and ease of use. Besides machine health and condition monitoring, it is particularly well suited for noise and vibration cancellation applications.
triple axis accelerometer

AccelR8 is a device for measuring acceleration - AccelR8 is a device for measuring acceleration. It can measure +/- 2 g. As it contains a microprocessor, it an also measure time.

A beginner's guide to accelerometers - By measuring the amount
of static acceleration due to gravity, you can find out the angle the device is tilted at with respect to the earth. By sensing the amount of dynamic acceleration, you can analyze the way the device is moving.

Society of Robots' tilt to servo control app - How does it
work? Inside an accelerator MEMS device are tiny micro-structures that bend due to momentum and gravity. When it experiences any form of acceleration, these tiny structures bend by an equivelent amount which can be electrically detected



David T.'s motor balancing experiments - Using an oscilloscope to measure AC vibration signals generated by an accelerometer (from Dimension Engineering).

http://www.flyelectric.ukgateway.net/bal6.jpg

Thursday, August 04, 2011

Energy and Power Measurements

To make an analog design using log amps or multipliers, discovercircuits - four-quad is good for learning. Using a uP for math is better. Look at these links below. Build a Power Meter ! The Metrics for Going Green is with a Energy/Power/Watt meter.

enerjar - diy power meter

Related Reading

Wednesday, August 03, 2011

Watlow Reference and Guides

Louis Desloge Sr. founds Watlow Electric Manufacturing Company in St. Louis, Missouri, USA, to manufacture electric heating elements for the shoe industry. 1922

Watlow Sensors, Processing and Heaters

'Watlow designs and manufactures industrial heaters, sensors and controllers - all of the components of a thermal system."

 SERIES F4 Ramping Controller

The SERIES F4 1⁄4 DIN industrial ramping temperature controller meets the requirements of the most demanding ramp soak controller processing applications.

This ramping temperature controller features a four line, high-definition LCD interface display for quick and easy profile programming and controller configuration.

SERIES F4 Ramping Controller

Watlow reference data provides information for amperage conversions, thermocouple types, RTD tolerances and more.

Watlow Ltd- Reference - Guides and Tutorials

Watlow is the leader in engineering and manufacturing custom commercial electric heaters. ... offer electric heating elements, industrial heaters..

Contents

Basic Electronics
Basics of Electronics
Product Production
Work Discipline
Testing Points
Learning Electronics
Electronics Theory

Production Notes
Prototype Fabrication
Electrical Circuits
Electromechanical


Library
Scots Guide Electronics
Engineering - Wikibooks
Design Lab - Jim Svoboda
DC Circuits UOG
Socratic Electronics
Blobz Guide Electric Circuits


Product Design
Product Development
Constant Current Source
Good Voltage Regulators
Insulation Resistance
Digital Insulation Tester
DN Schematic PCB 04
DN Product Design 07


Hobby Circuits
VU Meter Circuits
LED brightness control
555 Incredible Chip
Process Control
liquid level measurement
Thermocouples and RTD
Design ADC Interface uC
Thermocouple Amplifier
IA Instrumentation 02
Temperature on DMM
Optical Proximity Switch
Analog Mux - Data Acquisition


Test Measurement
Instrumentation Automation
NI Test and Measurement
DMM Digital Multi Meter
Oscilloscope in T&M
IA Automation 01
Build Instruments
Tektronix T&M Equipment
Educators Corner – Agilent


Power Electronics
UPS Background
Transformer Connections
DN Power Electronics 03
DN Power Electronics 02
Half Bridge Convertor SG3525


Embedded
Interfacing Microcontrollers
Embedded Process Control
80C31 8052 Microcontroller
Microprocessors and uC
Embedded Systems Design

Components
Good Voltage Regulators
Relays and Contactors
Potentiometers Trimpots
Prototype Boards Types
Types of Capacitors
Types of Switches
Resistors How they Work
Coils Transformers SMPS
Mains Transformers Types
DN Components Selection 05

Tutor Gadgets
Count-Up Timer
Digital Logic Gates
Electronics Tutors

History
Teaching Instruments
Charles Proteus Steinmetz
Muntzing a Circuit Design
Teralab Electronics projects
Historical Instruments


Tables, Charts, Videos
Binary and Hex
Resistor Color Code
Ohms Law
Giga, Tera, Pico, Nano
High Resistance Materials

Analog
School - Analog Design
DN Analog Basics 06
DN Op-Amps 01
TI Semiconductors

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