I'll be watching the replies carefully on this one, as I have a similar
interest. The most reliable thing I have come up with is to use Exergen's
IR/TC's at about $90 US a pop. They read same as thermocouples and do not
require motion.
A couple of things in their favor though, I have used hundreds of them
without a hitch - just some median filtering; they are nicely packaged with
choices in optics/FOV.

Chris

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Brian Taylor
> Sent: Tuesday, December 18, 2001 4:28 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Thermopiles - non contact temperature measurement
>
>
> I need to build a PIC based non contact IR thermometer to
> read in the range
> -45 to +45 Celcius.  Can anyone point me to a source of
> reasonably priced
> low volume thermopiles.  I cannot use the Pyrometers (used in
> PIR burglar
> alarms).   I  only need ten or so parts.
>
> regards
> Brian
>
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