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Subject: ultra sonic measurement

Date: 01/21/03 at 8:07 PM
Posted by: Gad
E-mail: apqw34@dsl.pipex.com
Message Posted:

HiI am trying to take a distance measurement from a pair of ultrasonic transducers. I want the range to be at least 30-40 metres. I can't seem to be able to get an accurate reading, as I think the range of recieved signals from 0.5 up to 35 metres is too large a range. Am I correct. How can I get around this. help much appreciated.Gad

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