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Subject: Re: low frequency, low power ultrasound

Date: 10/27/02 at 10:21 AM
Posted by: Ray
E-mail: rrogers@plaidheron.com
Message Posted:

In Reply to: low frequency, low power ultrasound posted by Roger Paul on 10/25/02 at 11:07 AM:

Here are some Ultrasonic links I found earlier this year.
Generating a 20kHz signal is no problem and buffering it produce 2-3 Watts is no problem.
I do think that 2-3 Watts is a lot of power unless you know what you are doing. Make sure you start at a much lower power and work your way up. I would hate to see you damage yourself or the neighborhood animals.

Ray

For circuits I found:
http://www.geocities.com/robobix/US.html
http://www.xilinx.com/xapp/xapp364.pdf
Simple:
http://www.ichinoseki.ac.jp/~satok/SATOK/ptc/ulm.html
Best??:
http://www.mindspring.com/~sholmes/robotics/hwfrm.htm

Commercial:
http://www.senix.com/
http://www2.ncsu.edu/ncsu/pams/physics/PCEP/www/PCC/spring95/sensorne.html
http://www.omniinstruments.co.uk/level/vgson50.pdf
http://www.siemens-milltronics.com/pdf/brochure/7ML1033Brochure.pdf
http://www.warnernet.com/PDF/UltrasonicSensors.pdf


Educational project (you might have to email the authors):
http://www.sensorsmag.com/articles/1000/55/main.shtml
http://www.concord.org/slic/ccsr-doc.html


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