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METHOD AND APPARATUS FOR DETECTING DAMAGE TO HIGH-PRESSURE TANK

  • US 20100107765A1
  • Filed: 07/11/2008
  • Published: 05/06/2010
  • Est. Priority Date: 07/12/2007
  • Status: Active Grant
First Claim
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1. A method for detecting damage to a high-pressure tank, in which an acoustic emission sensor for detecting acoustic emissions generated by the deformation of a material, or by microcracks in a material, or by the failure of a material in which said microcracks have grown, is used for the non-destructive detection of a sign of failure that occur when a high-pressure tank for storing a high-pressure fluid is filled with said fluid,wherein a group of acoustic emission signals which are made up of elastic waves of the same frequency generated continuously for a short period, and which are signals received by the acoustic emission sensor, are counted as one hit, and a hit rate indicating the change in the hit over time is found, andthe sign of failure is detected from the change in the hit rate.

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