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Inspection of concrete structures using sonic tomography

  • US 6,105,430 A
  • Filed: 07/02/1998
  • Issued: 08/22/2000
  • Est. Priority Date: 07/02/1998
  • Status: Expired due to Fees
First Claim
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1. An acoustic travel time tomography system for determining physical properties of a dam, said system comprising:

  • a plurality of acoustic sensors, positioned on said dam at a plurality of fixed spaced sensor locations which are known relative to each other, for producing output data responsive to the detection thereby of acoustic waves generated in said dam;

    an impact source for producing an impact at an impact location which is known relative to said sensor locations so as to generate acoustic waves in the dam that pass through a portion of the dam for detection by said sensors; and

    data processing means for acquiring output data from said sensors produced responsive to acoustic waves generated by said impact source and for analyzing said output data and data related to the relative locations of the sensors and the impact source to determine the travel times of the acoustic waves to the sensors so as to determine physical properties of said dam.

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