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ENVIRONMENTAL CHANGE COMPENSATION IN A STRUCTURAL HEALTH MONITORING SYSTEM

  • US 20080255775A1
  • Filed: 12/07/2007
  • Published: 10/16/2008
  • Est. Priority Date: 04/16/2007
  • Status: Active Grant
First Claim
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1. A method of compensating for environmental effect changes when detecting a signal, comprising:

  • collecting baseline data signals at one or more values of an environmental effect variable, wherein the baseline data signals are propagated through a structure;

    selecting a threshold based on the baseline data;

    collecting current data signals, wherein the current data signals are propagated through the structure;

    determining a value of the environmental effect variable corresponding to a closest match between the collected current data signals and the collected baseline data signals; and

    detecting damage in the structure by comparing collected current data signals to the threshold.

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