HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
npitech
User Rank
Iron
Co-incidentally
npitech   2/1/2012 1:46:24 PM
NO RATINGS
I believe the same technique was used for resistors in that HP34401 that you were using. It was definitely used in several of the dvms.

 

 

Charles Murray
User Rank
Blogger
Re: Creative problem solving
Charles Murray   1/31/2012 7:04:28 PM
NO RATINGS
Yes, I agree, Beth. Talk about out-of-the-box think...this is amazing. Great story, Steve.

Alexander Wolfe
User Rank
Blogger
Re: Burn in by burning in
Alexander Wolfe   1/31/2012 3:07:32 PM
NO RATINGS
Thanks for clarifying, Steve.  That's analogous to what vacuum tube vendors used to do, when they sold matched pairs for amp output stages (eg., 12AX7s).

Steve Lindberg
User Rank
Iron
Re: Burn in by burning in
Steve Lindberg   1/31/2012 1:52:49 PM
NO RATINGS
Alexander, it wasn't really burning in the resistor, but measuring the temperature coefficient. As the circuit warmed, the mismatch between the two resistors changed.

By observing an induced delta, we could select parts that drifted alike.

Steve Lindberg
User Rank
Iron
Re: Creative problem solving
Steve Lindberg   1/31/2012 12:38:18 PM
NO RATINGS
The process remained the same for the life of the probe.

Alexander Wolfe
User Rank
Blogger
Re: Burn in by burning in
Alexander Wolfe   1/31/2012 12:37:39 PM
NO RATINGS
Good to hear, Steve. As long as you're not deep frying a turkey, which carries additional risks beyond whatever it takes like.

Steve Lindberg
User Rank
Iron
Re: Burn in by burning in
Steve Lindberg   1/31/2012 12:35:57 PM
NO RATINGS
We only cook fondue about once every 6 months so I wouldn't consider a contributor in my eventual demise.

Alexander Wolfe
User Rank
Blogger
Burn in by burning in
Alexander Wolfe   1/31/2012 12:09:37 PM
NO RATINGS
So you literally burned in your resistors by burning them in? Brilliant. BTW, you're lucky your fried cheese steak dinner didn't kill you before you got to the lab to come up with your gastronomically inspired solution.

williamlweaver
User Rank
Platinum
Re: Creative problem solving
williamlweaver   1/31/2012 9:13:08 AM
NO RATINGS
Our laser lab was resplendent with scopes and meters from LeCroy, Agilent, and SRS. Now I know why we always went out for cheese steaks after using the LeCroy. I wonder if LeCroy had a subliminal contract with the anti-cholesterol pharmaceuticals industry...

Beth Stackpole
User Rank
Blogger
Creative problem solving
Beth Stackpole   1/31/2012 9:03:42 AM
NO RATINGS
You have to applaud the out-of-the-box thinking on this Sherlock Ohms post. Curious to know what replaced the deep fryer once the build process moved to corporate headquarters?



Partner Zone
Latest Analysis
The phablet wars continue. Today we welcome the Nexus 6 -- a joint collaboration between Google and Motorola.
According to a study by the National Institute of Standards and Technology, one of the factors in the collapse of the original World Trade Center towers on Sept. 11, 2001, was the reduction in the yield strength of the steel reinforcement as a result of the high temperatures of the fire and the loss of thermal insulation.
If you have a Gadget Freak project, we have a reader who wants to make it. And not only will you get your 15 minutes of fame on our website and social media channels, you will also receive $500 and be automatically entered into the 2015 Gadget Freak of the Year contest.
Robots are getting more agile and automation systems are becoming more complex. Yet the most impressive development in robotics and automation is increased intelligence. Machines in automation are increasingly able to analyze huge amounts of data. They are often able to see, speak, even imitate patterns of human thinking. Researchers at European Automation call this deep learning.
Thanksgiving is a time for family. A time for togetherness. A time for… tech?
More:Blogs|News
Design News Webinar Series
11/19/2014 11:00 a.m. California / 2:00 p.m. New York
11/6/2014 11:00 a.m. California / 2:00 p.m. New York
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Dec 1 - 5, An Introduction to Embedded Software Architecture and Design
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Last Archived Class
Sponsored by Littelfuse
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service