Infrared Sensor vs Photoelectric Sensor: Differences and Types of Photoelectric Sensors

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#1 21660193 30 Nov 2011 09:44

John Konwat John Konwat

Anonymous

Post #1
21660193 30 Nov 2011 09:44

I just wanted to know if infrared sensor is a type of photoelectric sensor and what are the different kinds of photoelectric sensor? I seem to find the different types of photoelectric sensor on the net. Any help would be appreciated. Thanks in advance
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#2 21660194 30 Nov 2011 17:01

Joe Wolin Joe Wolin

Anonymous

Post #2
21660194 30 Nov 2011 17:01

Passive infrared sensors are based on pyroelectric materials.

See: http://en.wikipedia.org/wiki/Passive_infrared_sensor

To compare this to the photoelectric effect,

See: http://en.wikipedia.org/wiki/Photoelectric_effect
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