Newsgroups: comp.robotics
Path: brunix!news.Brown.EDU!noc.near.net!howland.reston.ans.net!ux1.cso.uiuc.edu!sdd.hp.com!col.hp.com!csn!rsinc!steve
From: steve@rsinc.com (Steve Richards)
Subject: Ultrasonic range finding 
Message-ID: <C7n78E.205@rsinc.com>
Sender: news@rsinc.com
Nntp-Posting-Host: 192.160.108.6
Organization: Research Systems, Inc.
Date: Wed, 26 May 1993 16:31:25 GMT
Lines: 28




	I am looking for schematics for an ultrasonic range finder.  I hope
to use a small single board computer's counter to time the delay so I really
only need to create a sonic burst and then be alerted when or if a echo is
recieved.  Also any information on what frequencies are best and possible
parts sources would be extremely helpful.

	My goal is not 99.9% accuracy.  Hopefully readings of:

		Infinity
		Somewhere near

		    and

		Almost crashing

	are possible with the above described scenario.

	Any ideas?

	Thanks in advance:

		Steve Richards

		steve@rsinc.com

