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Re: Pitch-Catch in air

Posted by: R.J. Freemantle , E-mail: r.j.freemantle@elec.keele.ac.uk, on May 23, 1997 at 10:57:06:

In Reply to: Pitch-Catch in air posted by : John Bower on May 23, 1997 at 06:10:21:

: I am looking for equipment to do ultrasonic testing (pitch-catch) in air. I will be working over a range of 0 to 3 meters. I need millimeter resolution. Does anyone know of sources for pulsers, transmitters, receivers? I assume I need to work at 50 to 200 kHz or so, but I am having trouble finding speakers and microphones at these frequencies.

There are two groups that I know in the UK that specialise in air coupled ultrasound for inspection. They have experitise in transducer construction as well as design of the pulser and receiver electronics.

Try contacting:

Prof. Gordon Hayward
Dept. Electronic and Electrical Engineering
University of Strathclyde
Glasgow
UK.
email g.hayward@eee.strath.ac.uk

Prof. David Hutchins,
Department of Engineering,
University of Warwick,
Coventry CV4 7AL, UK.

email dah@eng.warwick.ac.uk

Hope this helps.

Richard.

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