• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Test & Measurement Tips

Oscilloscopes, electronics engineering industry news, how-to EE articles and electronics resources

  • Oscilloscopes
    • Analog Oscilloscope
    • Digital Oscilloscope
    • Handheld Oscilloscope
    • Mixed-signal Oscilloscope
    • PC-based Oscilloscopes – PCO
  • Design
  • Calibration
  • Meters & Testers
  • Test Equipment
  • Suppliers
  • Video
  • EE Learning Center
  • FAQs

David Herres

Gauging the thermoelectric effect

December 17, 2021 By David Herres Leave a Comment

thermoelectrics

The thermoelectric effect can be exploited to convert temperature difference to electric voltage or to convert electric voltage to a temperature difference. And devices incorporating the thermoelectric effect can be built and configured to produce heat when voltage is applied. The effect is distinct from resistive (joule) heating, although in actual practice, both effects may […]

Filed Under: FAQ, Featured, New Articles, Sensing Tagged With: cuidevices, FAQ

Tricks for pulling signals out of noise

December 10, 2021 By David Herres Leave a Comment

minimizing noise

Thermal noise, also known as Johnson-Nyquist noise, is generated by thermal agitation of charge carriers inside an electrical conductor or component regardless of any applied voltage. A small voltage can actually be measured across a wire segment that is at non-zero temperature and lying on a non-conductive surface. Apprentice electricians are puzzled by this phenomenon, […]

Filed Under: FAQ, Featured, oscilloscope measurements Tagged With: FAQ, keysighttechnologies

The difference between CCD and microbolometer thermal imaging

December 3, 2021 By David Herres Leave a Comment

CCDs and microbolometers

Most engineers are familiar with charge-coupled devices (CCDs) employed as image sensors. Pixels in a CCD sensor consist of P-doped metal-oxide semiconductor capacitors arranged in columns and rows to form an array. Light striking each pixel is converted to an electrical charge that varies according to the light intensity at that pixel. The CCD transfers […]

Filed Under: FAQ, Featured, New Articles, Test Equipment, Thermal Camera Tagged With: edmundscientific, FAQ, Fluke

How to measure display screen output

November 23, 2021 By David Herres Leave a Comment

The flat display screens of today typically look great. But when it comes to quantifying their output, confusion may reign. There are three main measurement tools used to gauge the output of displays. Before we get into their details, it might be helpful to review the main display technologies we are typically trying to measure. […]

Filed Under: FAQ, Featured, New Articles, Sensing, Spectroscopy, Test Equipment Tagged With: FAQ

The difference between Moore’s law and Edholm’s law

November 12, 2021 By David Herres Leave a Comment

Most engineers are familiar with the observation named after Gordon Moore, the co-founder of Fairchild Semiconductor and Intel, who in 1965 posited that the number of components on integrated circuits had doubled annually and projected this rate of growth would continue for at least another decade. In 1975, looking forward to the next decade, he […]

Filed Under: FAQ, Featured Tagged With: FAQ

Choosing the right amplifier

November 5, 2021 By David Herres Leave a Comment

amplifiers

Amplifiers come in all shapes and sizes. The key characteristic of virtually every amplifier is its gain and fidelity of the output relative to the input. Gain, denoted by β (Greek letter beta), is the ratio of output voltage, current or power to input. An amplifier by definition has a power gain greater than one. […]

Filed Under: FAQ, Featured, New Articles, Test Equipment Tagged With: FAQ

Music synthesis and arbitrary waveform generators

October 1, 2021 By David Herres Leave a Comment

music synthesizer

A pure musical note from a tuning fork is a basic sine wave. The same note played on a trumpet will look like a saw-tooth wave when displayed on an oscilloscope. The same note from a flute will be a triangular wave. But the same note from a clarinet may appear to be closer to […]

Filed Under: arbitrary waveform generators, FAQ, Featured, New Articles, Test Equipment Tagged With: FAQ

Here’s a rundown on free layout/PCB software

September 24, 2021 By David Herres Leave a Comment

free layout/PCB software

There are dozens of free PCB-layout and schematic packages available on the Web. Often they are stripped-down versions of more complex packages available for licensing. Often, the process of upgrading from freeware to more sophisticated versions is pretty easy. If your circuit needs are generally confined to relatively straightforward two-layer boards, here are a few […]

Filed Under: Design, EDA, FAQ, Featured, New Articles Tagged With: autodeskinc, Digi-Key, FAQ, nationalinstruments, sunstonecircuits

Catch that glitch: Finding race conditions

September 17, 2021 By David Herres Leave a Comment

Among the problems circuit designers have to contend with in their fast and complex electronic environment are race conditions. The term used to be exclusively applied to electronic logic problems but has now been adopted by software engineers working on multithreaded programs. Briefly, software race conditions arise in multithreaded software when multiple threads attempt to […]

Filed Under: FAQ, Featured, New Articles Tagged With: FAQ, Tektronix

Don’t touch that! Things they don’t teach you in circuits lab

September 8, 2021 By David Herres Leave a Comment

The domain of most electronics engineers these days is confined to voltage levels ranging from microvolts on up to a few hundred volts. But when electronic equipment fails or there’s a problem with facility wiring, these same engineers may, in a pinch, be called upon to do basic troubleshooting of power levels far beyond their […]

Filed Under: FAQ, Featured, Meters & Testers, New Articles, Test Equipment Tagged With: FAQ, flukecorporation

  • « Go to Previous Page
  • Go to page 1
  • Go to page 2
  • Go to page 3
  • Go to page 4
  • Go to page 5
  • Interim pages omitted …
  • Go to page 52
  • Go to Next Page »

Primary Sidebar

Test & Measurement Handbook


Oscilloscopes Finder

Search Millions of Parts from Thousands of Suppliers.

Search Now!
design fast globle

Subscribe to our Newsletter

Subscribe to test and measurement industry news, new oscilloscope product innovations and more.

Subscribe Today

EE TRAINING CENTER CLASSROOMS

“ee

“ee

“ee

“ee

“ee

ee classroom

RSS Current EDABoard.com discussions

  • How to simulate (equivalent) noise (charge) of CSA?
  • Weird transformer result in ads
  • Error in Ansys HFSS
  • No Reverse recovery in LLC operating above resonance?
  • GPS signal level

RSS Current Electro-Tech-Online.com Discussions

  • 24v dc relays not de-energising
  • Positive and negative sides of voltage source
  • Automotive 6 Volt Generator Transistor Voltage Regulator
  • DIY Mini 12v Router UPS malfunction
  • Relaxation oscillator with neon or...

Footer

EE World Online Network

  • DesignFast
  • EE World Online
  • EDABoard
  • Electro-Tech Online
  • Analog IC Tips
  • Microcontroller Tips
  • Power Electronic Tips
  • Sensor Tips
  • Connector Tips
  • Wire and Cable Tips
  • 5G Technology World

Test & Measurement Tips

  • Subscribe to our newsletter
  • Advertise with us
  • Contact us
  • About us
Follow us on TwitterAdd us on FacebookFollow us on YouTube Follow us on Instagram

Copyright © 2022 · WTWH Media LLC and its licensors. All rights reserved.
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media.

Privacy Policy