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System for measuring the effect of bearing errors in an active device

  • US 7,107,168 B2
  • Filed: 07/22/2003
  • Issued: 09/12/2006
  • Est. Priority Date: 07/22/2002
  • Status: Active Grant
First Claim
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1. A method for determining a pointing error of an object attached to a shaft, comprising:

  • providing a set of distance measuring probes at each end of the shaft;

    using the probes, measuring a position of each end of the shaft for producing shaft-end position data;

    determining a geometric error vector for each end of the shaft from the shaft-end position data; and

    , using the geometric error vector, determining the pointing error of the object.

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