Measuring and testing – Vibration – By mechanical waves
Patent
1998-01-06
1999-04-13
Williams, Hezron
Measuring and testing
Vibration
By mechanical waves
G01N 2908
Patent
active
058940928
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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Berger Harold
Lindgren Eric A.
Rosen Moshe
Industrial Quality, Inc.
Miller Rose M.
Williams Hezron
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