[sci.electronics] Looking for motion detector sensor.

kraft@plains.UUCP (Joe Kraft) (02/10/90)

I'm looking for the type of motion detection sensor used to open the
automatic doors in your local supermarket.  Does anyone know where I
can get one, or point me in the right direction to start looking?  
I'm working on my senior design project and our "extensive" library of
manuals, books, etc. seems to be lacking in this area.  Either that or 
I'm not looking in the right place.  :)

				Thanks,
				  Joe.

ornitz@kodak.UUCP (Barry Ornitz) (02/12/90)

In article <3381@plains.UUCP> kraft@plains.UUCP (Joe Kraft) writes:
>I'm looking for the type of motion detection sensor used to open the
>automatic doors in your local supermarket.  Does anyone know where I
>can get one, or point me in the right direction to start looking?  
>I'm working on my senior design project and our "extensive" library of
>manuals, books, etc. seems to be lacking in this area.  Either that or 
>I'm not looking in the right place.  :)

Joe,
I suggest you try Alpha Microwave.  They make a large number of Gunn diode
oscillator modules and assemblies.  They make a basic module (called the MSM
1000 if my memory serves - and it has been going fast lately!).  This module
includes the oscillator and detector and a few other pieces and should be
perfect for your application.  It has the advantage that it already meets the
FCC regulations, something that should save you much trouble.  I do not have
Alpha's address at home, but you should have no trouble finding them if your
extensive library contains a Thomas Register or other buyers guide.  Good luck.
                       73 de WA4VZQ, Barry    ornitz@kodak.kodak.com
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| |  / /        | |  Dr. Barry L. Ornitz  UUCP:..rutgers!rochester!kodak!ornitz
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