Newsgroups: comp.robotics
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From: ad302@freenet.buffalo.edu (Elizabeth M. Phillips)
Subject: using I/R^2 for distance sensing
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Reply-To: ad302@freenet.buffalo.edu (Elizabeth M. Phillips)
Organization: State University of New York At Buffalo, NY (USA)
Date: Sat, 3 Dec 1994 23:30:12 GMT
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How acurate can this be used for sensing distances from an object
and what ranges are possible?   My guess is
acuracy -	So so +-5%
range 	-	1mm min to 75mm max

Would an LED IR emitter and PIN diode work for this?
Would "noise" from that outside world cause interference?
Would making a "background" measurement help just before an
actual sample?

Thanks
-- 
