Speed Sensing

[Stefan Duma]

I am trying to measure the velocity of small pieces of foam (diameter =
5 inch) at velocities ranging from 100 - 200 miles/hour. I would like an
'off the shelf' package. Any ideas? Since the foam is so light it looses
most of the velocity 4 inches from the gun. For this reason if the
package has 2 sensors (like the standard military ballistic type) they
need to be about 1 inch apart.

Thank you.

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Stefan M. Duma
Research Engineer
University of Virginia
Automobile Safety Laboratory
1011 Linden Avenue
Charlottesville, VA 22902
(W) 804-296-7288
(Fax) 804-296-3453
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