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Load variation detector

  • US 5,675,094 A
  • Filed: 01/11/1996
  • Issued: 10/07/1997
  • Est. Priority Date: 12/10/1990
  • Status: Expired due to Fees
First Claim
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1. A method for detecting variation in load in a load transmitting member which experiences a plurality of load producing events at different times, at least one of which load producing events may be a zero load, said method comprising the steps of:

  • obtaining a plurality of signals at different times, each such signal related to, but not directly correlated with, stress in the member produced by at least one load producing event;

    using said plurality of signals to obtain a statistical value indicative of the degree of variation in the plurality of signals over time, andusing said statistical value to detect variation in load between different load producing events occurring at different times.

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