Testing method using guided wave

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United States of America Patent

PATENT NO 9068938
APP PUB NO 20120291552A1
SERIAL NO

13574187

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Abstract

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(A) first data for defect amount estimation for the guided wave of a first frequency is obtained, the data indicating a relationship among amplitude of the reflected wave, a defect cross-sectional area and a defect width. (B) second data for defect amount estimation for the guided wave of a second frequency is obtained, the data indicating a relationship among amplitude of the reflected wave, a defect cross-sectional area and a defect width. (C) a guided wave of the first frequency is generated, and amplitude of a reflected wave is detected as first amplitude. (D) a guided wave of the second frequency is generated, and amplitude of a reflected wave is detected as second amplitude. (E) on a basis of the first and second data and the first and second amplitude, a defect cross-sectional area and a defect width of the defect part are estimated.

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Patent Owner(s)

Patent OwnerAddress
IHI INSPECTION AND INSTRUMENTATION CO LTDTOKYO 140-0013

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Daikoku, Koki Kanagawa, JP 3 4
Sato, Shuichi Kanagawa, JP 94 559
Yoshizaki, Masato Kanagawa, JP 4 15

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