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Subject: Re: Ultrasonic Sensor for obstacle detection

Date: 02/25/01 at 10:45 AM
Posted by: Brian Snell
E-mail: bsnell@lara.on.ca
Message Posted:

In Reply to: Ultrasonic Sensor for obstacle detection posted by Tara on 02/24/01 at 4:30 PM:

Greetings. I have a simple circuit which allows a 40KHz feed to a transducer which, when aimed at a second similar transducer/amplifier will act as an "obstacle detector". The original design was used for detecting a "film-out" condition in a high speed rewinder, since the usual I.R. system would trigger on clear portions of the film.

I would be happy you forward a copy of the circuit if you are still interested.

Brian Snell (bsnell@lara.on.ca)

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