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Wednesday, February 13, 2008

Avtech Applications Information

Avtech Applications Information - and other useful information. LabView Drivers are available.
  • General Applications Information
  • What Coaxial Cable Should I Use?
  • How Can I Connect to an SHV Connector?
  • How Can I Extend the Amplitude Range to Low Levels?
  • How to Deliver a Fast 2 Amp Pulse to a Diode in a Probing Station
Avtech Electrosystems - Nanosecond Waveform Generators
 
Avtech
Avtech manufactures over 500 standard models, ranging from basic general-purpose ±5V pulse generators, to exotic 500 Amp ultra-high-current laser diode drivers, and including ultra-high-speed pulse generators with rise times as low as 40 ps!

Some Test Equipment they make
  • Frequency Dividers
  • Pulse Converters & Stretchers
  • Broadband bias tees
  • 1 to 10 Ohm Transmission Lines
Avtech Electrosystems Ltd.
PO Box 265, Ogdensburg, NY, 13669-0265 USA

Tuesday, February 12, 2008

Professor Mark Csele - Projects and Hobbies

"I present, below, a collection of projects I have worked-on over the past few years. For over a decade, I had taught both embedded systems (microcontroller technology) and digital signal processing and practice what I preach...."

Professor Mark Csele - Projects and Hobbies

Nixie Thermostat - A heating and cooling thermostat employing technologies spanning fourty years from the unique Nixie tube display, circa 1960's, to a PIC 18F microcontroller, circa 2006.

A High-Powered Power Backup Inverter

A High-Powered Power Backup Inverter - The working prototype of the 2 KVA inverter is complete. Fed from an array of lead-acid cells totalling 600 Ah (at 12 Volts), it easily drives real-world loads such as single-phase motors. The inverter has been tested and found to operate at an efficiency of between 71% and 82% driving a variety of both inductive and resistive loads

Peter H. Anderson - Embedded Processor Control

PC Parallel Port, BasicX, BASIC Stamp, 68HC11, PIC, PICAXE, Data Acquisition and Control, Serial Control and Measurement. Many Microchip PIC Types , Use of a PC Printer Port for Control and Data Acquisition, 68HC11 Assembly Language ProgrammingParallel Port Interfacing with 2, 3 and 4 Wire Serial Devices.

Peter H. Anderson - Embedded Processor Control

This is a combination of LCD PIC, an assembled printed circuit board from ModernDevice.com, a 20X4 LCD with Blue / White backlight and interfacing connector

Peter H Anderson - Embedded Processor Control

This design provides an interface between a 9600 baud (or similar) serial line from a Microchip PIC, Arduino, Parallax Basic Stamp, NetMedia BX24, PICAXE and similar and a character LCD having an HD44780 interface.

Serial LCD Kit with Variable LED Backlight

The serial interface is TTL. That is, the idle state is a TTL logic one, or near +5 VDC. This is often termed non-inverting or true. This provides direct compatibility with the UART associated with a PIC, SerOut on a Basic Stamp and Com3 on a BX24. When interfacing with a PC or similar where the logic is inverted, an inverter is required. This might be as simple as a single 2N3904 NPN transistor.

(this is a very useful computer interfacing resource for instrumentation - delabs)

Douglas Beattie Engineering Consultant

Douglas Beattie Engineering Consultant

  • 6502 / 65C02: Hardware / Software
  • eZ80F91 Reference Design
  • Parallel Port Interfacing (''roll-your-own'')
  • Z80 Forth page

Tuesday, February 05, 2008

Kilowatt Classroom Electrical Training

The Industrial Electricians Notebook - Free online electrical books selection that features interesting and timely subjects: electrical theory, electrical reference information, electrical equipment and maintenance data, industrial electronics, and electrical safety regulations.

Kilowatt Classroom Electrical Training

"The harnessing of electrical power to lighten mankind’s work-load is only a little over a century old. During my own career, I have witnessed many changes in equipment, work methods, industry organization, and company philosophies."

Kilowatt Classroom Electrical Training

"All electrical systems are composed of the same basic equipment. Experience has shown it is most economical to generate power in large bulks, transmit it at very high voltage to minimize line losses, and transform it to low voltages for safe feeding to individual customers in small quantities."

The Electrician’s Notebook - Kilowatt Classroom, LLC - Elwood V. Gilliland

Sunday, February 03, 2008

NASA Tech Briefs and Innovations

NASA Tech Briefs and Innovations

"The monthly magazine features exclusive reports of innovations developed by NASA and its industry partners/contractors that can be applied to develop new/improved products and solve engineering or manufacturing problems."

  • Electronics & Computers
  • Semiconductors & ICs
  • Materials
  • Manufacturing & Prototyping
  • Machinery & Automation
  • Test & Measurement