Ned,
Not familiar with this K term. For straight resitance changes in
transformers, we always used 0.0039 per C. Does K somehow include contact
resistance, not just bulk resistance?
This is definitely the time to measure it.
Environmental chamber at -50, 0, 50, 100, and 150. Make your own curves.
- Robert -
Robert A. Macy, PE [email protected]
408 286 3985 fx 408 297 9121
AJM International Electronics Consultants
619 North First St, San Jose, CA 95112
-----Original Message-----
From: Ned Devine <[email protected]>
To: [email protected] <[email protected]>
Date: Friday, May 10, 2002 8:45 AM
Subject: Constant for Change of Resistance formula.
Hi,
Does any one know how the constant for CoR formula was determined? I
know the K is 234.5 for copper and 226 for aluminum, but what property is
this related to?
I am trying to determine the change in temperature of a connector, based
on the change of resistance. The connector contacts are made of brass.
Thanks
Ned
Ned Devine
Program Manager
Entela, Inc.
3033 Madison Ave. SE
Grand Rapids, MI 49548
1 616 248 9671 Phone
1 616 574 9752 Fax
[email protected] e-mail
Entela, Inc. A Certified Woman Owned Business
www.entela.com
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