Method for evaluation of acoustic anisotropy and measuring apparatus therefor
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United States of America Patent
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Apr 26, 1994
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N/A
app pub date -
Sep 16, 1991
filing date -
Sep 17, 1990
priority date (Note) -
Expired
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Abstract
Increasing use of thermo-mechanically treated high strength steels in construction projects has created a need for on-site inspection of welded joints by ultrasonic techniques. However, such steels are acoustically anisotropic, and corrections of test results for anisotropy, according to the traditional methodologies, require lengthy and complex preparation steps which are unsuitable for on-site testing. The present invention presents an automated quick and simple methodology, and a compact apparatus for determining the acoustic anisotropy in such materials. The apparatus is expected to lead to effective management of quality assurance not only in civil and architectural engineering projects but in heavy machinery and ship building industries.
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