aka j wrote:
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I don't think its anything as sensitive and accurate as I've heard
users image. After all, its only dealing with the SUM of the IR
intensity in its viewing area, not a pixelation.
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Hi Jaz :)

Exactly,exactly it is'nt accurate I used the term very sensitive
to give him the idea that it wont be easy to calibrate,what I
want to say was that it's not only the motion the the PIR sensors
senses but a lot more dont you think a combination of electro-optical
could enable measurements upto radiator displacement of about tenths of
second of arc? I have also seen span and ofset errors creeping in
randomly do you have any idea why that happens?




have a nice day

sanjeev