IR sensor

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IR sensor

Postby zhui » Thu Apr 23, 2015 10:18 pm

I am looking into a type of IR sensor which can sense in few mm.
Can i know which one is suitable for me?
PIR sensor Module/IR Sensor Set With Socket/IR Sensor Set
btw i want the result in analog form.
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Re: IR sensor

Postby ober » Sat Apr 25, 2015 10:26 pm

few mm? That is quite small for IR sensor. IR sensor depends a lot of the reflection of Infrared; angle of object, color of object, surface of object, will affect the reflection.

PIR will not give you distance and even object, it senses Passive Infrared, read more here: http://en.wikipedia.org/wiki/Passive_infrared_sensor

mm in resolution, maybe you could check out the high resolution ultrasonic sensor.
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