Acoustic measurement of potato cannon velocity

Details Acoustic measurement of potato cannon velocity Acoustic measurement of potato cannon velocity

2006-12-13

arxiv.org/abs/physics/0612118v1

The Physics Teacher -- November 2007 -- Volume 45, Issue 8, pp. 496-497

Physics

Physics Education

3 pages

Scientific paper

10.1119/1.2798362

This article describes measurement of potato cannon velocity with a digitized microphone signal. A microphone is attached to the potato cannon muzzle and a potato is fired at an aluminum target about 10 m away. The potato's flight time can be determined from the acoustic waveform by subtracting the time in the barrel and time for sound to return from the target. The potato velocity is simply the flight distance divided by the flight time.

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