Method and system for obtaining near-surface characteristics of materials using ultrasonic Rayleigh waves
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United States of America Patent
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Apr 20, 1999
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app pub date -
Jan 6, 1998
filing date -
Sep 27, 1996
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Abstract
In a method for obtaining near-surface characteristics of a material, a series of single frequency ultrasonic Rayleigh waves are generated, with a generating system, in the material. The Rayleigh waves are detected with a detection system remote from the generating system. Velocities of the detected Rayleigh waves are determined at the selected frequencies. A depth profile of one or more characteristics of the material is prepared based on the determined Rayleigh wave velocities.
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