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Unread 29-08-2002, 11:37
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Pyroelectric sensors
Does anyone know a good source for them?? I know acroname sells them but thats seems to be the only place that does.
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Unread 29-08-2002, 15:58
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what are they?
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Unread 30-08-2002, 00:03
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"Pyroelectric Infrared Detectors (PIR) convert the changes in incoming infrared light to electric signals. Pyroelectric materials are characterized by having spontaneous electric polarization, which is altered by temperature changes as infrared light illuminates the elements."


Try http://www.glolab.com/pirparts/pirparts.html , they should be
A LOT cheaper than AcroName.
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Unread 03-09-2002, 09:54
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yeah I know thanks I found that website shortly after posting this.
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