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From: nagle@well.sf.ca.us (John Nagle)
Newsgroups: comp.robotics
Subject: Re: Getting narrow-beam range data
Message-ID: <25342@well.sf.ca.us>
Date: 10 Jun 91 07:01:48 GMT
References: <1290@sousa.ltn.dec.com>
Lines: 17

>In article <77904@brunix.UUCP>, kjb@cs.brown.edu (Ken Basye) writes...
>>We're looking for a way of getting a single range measurement in a
>>particular direction.  We have sonar, but the beam is far too wide.
>[...]
>>Ideally, we'd like something that has low power consumption, a 5-10
>>degree cone (or less) and a range up to at least 4 meters, although it
>>need not be very accurate (even +/- 10 cm would be OK).  

     Cybermation makes a megahertz-range sonar system with a narrow beam
only 3-4 degrees wide, which they offer with their mobile bases or
separately.  They're at 5457 Joe Valley Road, Roanoke, VA 24014,
phone 703-982-2641.

     Cybermation has a whole line of mobile robot components, but they
are not cheap.  Theirs are industrial-strength systems.

					John Nagle