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From: N_Cook on 19 Apr 2010 03:14

> Unfortunately before demolishing the web-cam I have to use it , minus IR
> filter , to make a video for an elctronic engineer friend of mine. He
> reckons they would work as a thermal imager and I don't. So will film a
> ladder of // 1/3W Rs fed from an increasing voltage, monitored with DVM in
> video, up to the point of charring.
>

I tried ladder of 7 // from 100 to 330R and stepped up from 1V to 10V by
0.5V steps until the 100R started to smell, overheating. Video showed no
observable difference to any of them


From: Fester Bestertester on 19 Apr 2010 22:18
> ...to make a video for an electronic engineer friend of mine. He
> reckons they would work as a thermal imager and I don't.

Has been discussed at least once here before...

<http://groups.google.com/group/sci.electronics.equipment/browse_thread/thread
/c131d84daf4fb7d6/8805419d6ac22d53?q=group%3A*electronics*&lnk=ol&>

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