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
Some of our culture's most enduring robots appeared in the 80s. The Aliens series produced another evil android, and we saw light robot fare in the form of Short Circuit. Two of the great robots of all time also showed up: The Terminator and RoboCop.
Two students have created a voice-command system for our homes, based on the simple and affordable Raspberry Pi.
Optomec's third America Makes project for metal 3D printing teams the LENS process company with GE Aviation, Lockheed, and other big aerospace names to develop guidelines for repairing high-value flight-critical Air Force components.
This Gadget Freak review looks at a cooler that is essentially a party on wheels with a built-in blender, Bluetooth speaker, and USB charger. We also look at a sustainable, rotating wireless smartphone charger.
Texas Instruments is rolling out a new microcontroller that could make the design of sensor networks and data logging systems simpler and less costly.
More:Blogs|News
Design News Webinar Series
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jul 21 - 25, Design Products With Bluetooth Low Energy
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.
Next Class: August 12 - 14
Sponsored by igus
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