Will a standard PIR work in an area lit by IR lighting?

Jack D asked:

I have an area that is switched using IR illumination for a camera of CCTV. If I install a PIR in this section but may trigger a collection of IR andalusia walking beyond human?

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Tags: Cctv Camera, Ir Camera, Lighting

This entry was posted on Thursday, January 21st, 2010 at 1:21 pm and is filed under Engineering. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

2 Responses to “Will a standard PIR work in an area lit by IR lighting?”

David D Says:
January 24th, 2010 at 5:05 am
It will probably work…

The PIR ( passive infrared sensor) usually senses radiation in the range of 8-14 microns - your body heat. The IR illumination used for CCTV is usually limited to silicon sensitivity which cuts off at 1.1 micron on the long wavelength end.

They don’t overlap
Ed Says:
January 26th, 2010 at 3:39 am
yes. The PIR is looking for changes, so it would ignore the steady state lighting, no matter what frequency.

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