Date: Wed, 13 Nov 2002 22:33:56 -0500
From: "Raymond E. Rogers"
X-Mailer: Mozilla 4.76 [en] (Win95; U)
Subject: Re: Temperature Measurement Stability
X-Comments: This message was posted through Newsfeeds.com
X-Comments2: IMPORTANT: Newsfeeds.com does not condone, nor support, spam or any illegal or copyrighted postings.
X-Comments3: IMPORTANT: Under NO circumstances will postings containing illegal or copyrighted material through this service be tolerated!!
X-Report: Please report illegal or inappropriate use to
X-Abuse-Info: Please be sure to forward a copy of ALL headers, INCLUDING the body (DO NOT SEND ATTACHMENTS)
Organization: Newsfeeds.com http://www.newsfeeds.com 80,000+ UNCENSORED Newsgroups.
Spehro Pefhany wrote:
> Yes. Particularly if they won't be exposed to temperatures outside
> the normal ambient range, otherwise they may show some small
> hysteresis effects.
Yes the range should be shipping and then operating from room to 37
> >Glass Encapsulated "Super" thermistors
> Maybe, if treated well (as above).
> >Semiconductor temperature sensors, like those used in Dallas
> >Semiconductor units.
> Maybe, but I don't trust them.
Neither do I (1/f) but I would like some hard data.
> What's wrong with an accurate mercury-in-glass thermometer? Not
> expensive, and it sounds like you have a very controlled situation, so
> the long response time and immersion depth requirement shouldn't
> bother you.
This is a thin (.2 or less) copper plate that needs to be controled. I
have two outside loops to help the control along, but it all centers on
the copper plate.
-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 80,000 Newsgroups - 16 Different Servers! =-----