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From: marken@aero.UUCP
Newsgroups: sci.electronics
Subject: Ultrasonic Distance Measurement
Message-ID: <8455@aero.ARPA>
Date: Wed, 11-Mar-87 11:28:29 EST
Article-I.D.: aero.8455
Posted: Wed Mar 11 11:28:29 1987
Date-Received: Fri, 13-Mar-87 07:09:34 EST
Reply-To: marken@aero.UUCP (Richard Marken)
Organization: The Aerospace Corporation, El Segundo, CA
Lines: 12

I would appreciate information regarding use of the Polaroid camera's
ultrasonic sensor as a digital yardstick. I recall reading an article
on how to build such a device -- the article appeared about 3 years ago 
in Byte or Radio Electronics. Does anyone recall seeing such an article or
have some recommendations regarding where a schematic could be obtained?

Thanks.

Rick Marken
Aerospace Corp.
ARPA: marken@aero
UUCP:(decvax,ucbvax)!trwrb!aero!marken