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Method and apparatus for determining and assessing a characteristic of a material

  • US 7,082,833 B2
  • Filed: 06/04/2004
  • Issued: 08/01/2006
  • Est. Priority Date: 06/06/2003
  • Status: Expired due to Fees
First Claim
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1. A method for assessing a characteristic of a material, comprising:

  • (a) propagating an acoustic wave through the material in an unloaded condition;

    (b) detecting a reflection or a transmission of the acoustic wave;

    (c) determining a parameter of the transmitted acoustic wave or the reflected acoustic wave using first and second sensors mounted on a movable load and separated by a known length;

    (d) repeating steps (a)–

    (c) with the material in a loaded condition;

    (e) determining a parameter difference between the unloaded and loaded conditions; and

    (f) determining from the parameter difference the characteristic of the material.

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