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Title: Laser-ultrasound spectroscopy apparatus and method with detection of shear resonances for measuring anisotropy, thickness, and other properties

Abstract

Apparatus and method for detecting shear resonances includes structure and steps for applying a radiation pulse from a pulsed source of radiation to an object to generate elastic waves therein, optically detecting the elastic waves generated in the object, and analyzing the elastic waves optically detected in the object. These shear resonances, alone or in combination with other information, may be used in the present invention to improve thickness measurement accuracy and to determine geometrical, microstructural, and physical properties of the object. At least one shear resonance in the object is detected with the elastic waves optically detected in the object. Preferably, laser-ultrasound spectroscopy is utilized to detect the shear resonances.

Inventors:
 [1];  [2];  [3];  [3];  [4];  [5];  [3]
  1. Terrebonne, CA
  2. St-Bruno-de-Montarville, CA
  3. Montreal, CA
  4. St-Bruno, CA
  5. Beloeil, CA
Issue Date:
Research Org.:
American Iron and Steel Institute, Washington, DC (United States)
OSTI Identifier:
872983
Patent Number(s):
6057927
Assignee:
American Iron and Steel Institute (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
DOE Contract Number:  
FC07-93ID13205
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
laser-ultrasound; spectroscopy; apparatus; method; detection; shear; resonances; measuring; anisotropy; thickness; properties; detecting; structure; steps; applying; radiation; pulse; pulsed; source; generate; elastic; waves; therein; optically; generated; analyzing; detected; combination; information; improve; measurement; accuracy; determine; geometrical; microstructural; physical; resonance; preferably; utilized; detect; waves generated; physical properties; radiation pulse; waves therein; optically detected; shear resonances; elastic wave; ultrasound spectroscopy; thickness measurement; pulsed source; shear resonance; /356/

Citation Formats

Levesque, Daniel, Moreau, Andre, Dubois, Marc, Monchalin, Jean-Pierre, Bussiere, Jean, Lord, Martin, and Padioleau, Christian. Laser-ultrasound spectroscopy apparatus and method with detection of shear resonances for measuring anisotropy, thickness, and other properties. United States: N. p., 2000. Web.
Levesque, Daniel, Moreau, Andre, Dubois, Marc, Monchalin, Jean-Pierre, Bussiere, Jean, Lord, Martin, & Padioleau, Christian. Laser-ultrasound spectroscopy apparatus and method with detection of shear resonances for measuring anisotropy, thickness, and other properties. United States.
Levesque, Daniel, Moreau, Andre, Dubois, Marc, Monchalin, Jean-Pierre, Bussiere, Jean, Lord, Martin, and Padioleau, Christian. Sat . "Laser-ultrasound spectroscopy apparatus and method with detection of shear resonances for measuring anisotropy, thickness, and other properties". United States. https://www.osti.gov/servlets/purl/872983.
@article{osti_872983,
title = {Laser-ultrasound spectroscopy apparatus and method with detection of shear resonances for measuring anisotropy, thickness, and other properties},
author = {Levesque, Daniel and Moreau, Andre and Dubois, Marc and Monchalin, Jean-Pierre and Bussiere, Jean and Lord, Martin and Padioleau, Christian},
abstractNote = {Apparatus and method for detecting shear resonances includes structure and steps for applying a radiation pulse from a pulsed source of radiation to an object to generate elastic waves therein, optically detecting the elastic waves generated in the object, and analyzing the elastic waves optically detected in the object. These shear resonances, alone or in combination with other information, may be used in the present invention to improve thickness measurement accuracy and to determine geometrical, microstructural, and physical properties of the object. At least one shear resonance in the object is detected with the elastic waves optically detected in the object. Preferably, laser-ultrasound spectroscopy is utilized to detect the shear resonances.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}

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Works referenced in this record:

Angular dependence of ultrasonic wave propagation in a stressed, orthorhombic continuum: Theory and application to the measurement of stress and texture
journal, September 1986


Breaking the sensitivity barrier: The challenge for laser-ultrasonics
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Inversion of Pole Figures for Materials Having Cubic Crystal Symmetry
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Shear-wave focusing with a laser-ultrasound phased-array
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