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Backstop system for measuring position, velocity, or trajectory

  • US 5,820,496 A
  • Filed: 06/06/1997
  • Issued: 10/13/1998
  • Est. Priority Date: 06/06/1997
  • Status: Expired due to Fees
First Claim
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1. A backstop system for determining the velocity or position or both of an article traveling along a path intersecting said backstop system, said backstop system comprising:

  • a frame member;

    a target member mounted on said frame member, said target member deforming from an initial position due to the article contacting said target member as the article moves along the path intersecting said target member;

    a plurality of linear displacement sensors operatively connected to said target member at a plurality of points, each of said plurality of linear displacement sensors producing a signal in response to a corresponding one of said plurality of points moving as said target member deforms, said signal defining a time interval and a linear distance said corresponding point moves during said time interval; and

    a processor system for receiving and recording said signals from each of said plurality of linear displacement sensors and trigonometrically computing the position or velocity or both for the article at a selected time.

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