Newsgroups: comp.robotics
From: pcats@cryton.demon.co.uk (Patrick Arnold)
Path: brunix!sgiblab!swrinde!cs.utexas.edu!howland.reston.ans.net!pipex!uknet!demon!cryton.demon.co.uk!pcats
Subject: Re: Ultrasonic range sensor - formfactor of prox. switch 
Distribution: world
References: <94047.115059AXB30@psuvm.psu.edu>
Organization: The Serial Port
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Date: Wed, 16 Feb 1994 19:19:34 +0000
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In article <94047.115059AXB30@psuvm.psu.edu> AXB30@psuvm.psu.edu writes:

>Our plant is currently using opto sensors to detect the presence of product
>in moulds on conveyer lines.  These sensors are not very dependable and very
>sensitive to dust, and hard to adjust.
>
>What would be _really_ neat would be an ultrasonic rangefinder in the
>form-factor of a proximity switch with range from a few mm to a few cm and a
>narrow beam (of course - this would be a neat sensor for mobile robotics
>users too ...  :-)).  Anyone ever seen one of these (cost is no objective)?

Farnell Electronics in the UK sell an ultrasonic proximity sensor switch, made
by Honeywell, that has a range of 130-500mm, adjustable by a pot. The output
frequency is 215kHz, which should make it quite directional. It costs 116.96
UK pounds.

Patrick.

-- 
The shortest distance between two points has not yet been built.

pcats@cryton.demon.co.uk vox+44(749)670058 fax+44(749)670809 dat+44(749)670030
