MeasurementBlues

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Senior Technical Editor

Senior Technical Editor covering test and measurement for EDN and EE Times, October 2013 to present. Senior technical editor, Test&Measurement World from 1992 to 2012. EDN Design Ideas editor, 2008 to 2011 (paid my dues). Written and recorded six songs about life as an engineer.


MeasurementBlues

's contributions
  • 05.30.2012
  • Jim Williams' contributions to EDN
  • We have been able to restore some articles from that era by scanning the figures from the original print pages. At that time, EDN's editors posted articles using links to PDFs of the images and those links have since broken.
  • 05.30.2012
  • Jim Williams' contributions to EDN
  • We recently added an article of Jim's originally published on May 26, 1988. It's at the end of this list, but here's the link. It's complete with images scanned from the printed pages. http://www.edn.com/design/test-and-measurement/4442785/Clever-techniques-improve-thermocouple-measurements
  • 03.27.2017
  • Help us complete EDN's print collection
  • Thanks to everyone to send their EDN issues. The set is now complete. Harvard is in the process of moving the EDN collection from the School of Engineering & Applied Science library to the Cabot Science Library. Once the move is complete, I'll deliver that last 12 issues.
  • 03.23.2017
  • Product Engineering: The bridge between design and manufacturing
  • It's been years since I wrote an article like the one linked here. My last 6-7 years at Test & Measurement World, I wrote 2-3 of these stories a year, all of which were featured on the cover. The stories took me to Analog Devices, Bose, DeWalt, Gneral Dynamics, JPL, UNH-IOL, and others.
  • 12.18.2014
  • Help save a part of engineering history
  • Great news! The Telephone Museum will soon have a real home in Waltham, Mass. (pronounced WalTHAM). If you know the area, the site will be at the former Jordan's Furniture store on Moody St. I look forward to visiting.
  • 03.07.2017
  • Measuring appliance power consumption
  • Come on Paul. This is the easy way. I would expect you to make a breakout power cord so you can separate the hot and neutral lines, then measure current with a clamp meter, then calculate power with paper and pencil.
  • 01.03.2014
  • Rule of Thumb #4: Skin depth of copper
  • If skin depth is about [sqrt(2microns/f(GHz)] but resistance is higher about 1 GHz because of surface roughness, what might a typical impedance be at 14GHz?