[SI-LIST] Differential volt meters
- From: Doug Brooks <doug@xxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Mon, 08 Nov 2004 15:40:51 -0800
Hi folks
The founding product of the John Fluke Manufacturing Company back in the
50's was a differential voltmeter. He was the first (I believe) to develop
such a product. It was essentially a VERY accurate voltage generator. It
worked by dialing in a voltage that was exactly equal to the voltage being
measured and then reading the voltage generated. Equality was determined by
a null meter. (My first job in the electronics industry was a summer job
working on the Fluke assembly line.)
My question is, does anyone make or use differential voltmeters like this
today? I assume not. But I'm wondering if there may be some lab
applications where such meters are still needed that I don't know about.
Doug
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List FAQ wiki page is located at:
http://si-list.org/wiki/wiki.pl?Si-List_FAQ
List technical documents are available at:
http://www.si-list.org
List archives are viewable at:
//www.freelists.org/archives/si-list
or at our remote archives:
http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
