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2010 Summer Meeting

2011 AAPT Summer Meeting
July 30-August 3, 2011
Omaha, Nebraska

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PST1F01:

Determining the accuracy of an ultrasonic motion detector velocity calculation.
  Location: KFC Courts
  Date: Monday, Aug.1
  Time: 8:00 PM -8:45 PM
  Author: Dan Beeker, Indiana University
(812) 855-5903, debeeker@indiana.edu
  Co-Author(s): Alexei Krainev
  Abstract: Although the ultrasonic motion detector is ubiquitous in the first year physics labs, only rarely is the accuracy of this device examined. A simple method for determining the accuracy of motion detector velocity calculations using photogates and a Mindstorm robot is demonstrated. In addition to providing a simple way to determine the accuracy of an important parameter, the Mindstorm robot introduces a very high "play factor" to the activity.
  Footnotes: None
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