TY - JOUR
T1 - Development of eddy current testing system for complicated-shaped components
AU - Nishimizu, Akira
AU - Matsui, Tetsuya
AU - Koike, Masahiro
AU - Nonaka, Yoshio
AU - Kojima, Toshio
AU - Kobayashi, Futoshi
AU - Takagi, Toshiyuki
AU - Uchimoto, Tetsuya
AU - Endo, Hisashi
AU - Hashimoto, Mitsuo
AU - Fukuoka, Katsuhiro
PY - 2008/6
Y1 - 2008/6
N2 - The objectives of this study are to develop a new inspection probe for complex structures using eddy current testing method (ECT), to establish the recognition technique of real flaw shape such as stress corrosion cracking (SCC), and to develop a rapid nondestructive inspection system. An ECT system consists of measurement and computational modules that are connected via a network circuit. The measurement module includes a flexible ECT sensor, which could fit on the curvature surface of radius larger than 25 mm with a mechanical manipulator. The computational module is used for SCC sizing. It includes a database of ECT signals that are used to execute numerical calculations. SCC sizing can be evaluated by comparing the measured ECT signals with the calculated ECT signals within the database. We have demonstrated that the system could be used to estimate the SCC length and depth sizing in 140 s. The accuracy of length sizing showed an RMS error of 3.7 mm and the depth sizing was 0.63 mm in this work.
AB - The objectives of this study are to develop a new inspection probe for complex structures using eddy current testing method (ECT), to establish the recognition technique of real flaw shape such as stress corrosion cracking (SCC), and to develop a rapid nondestructive inspection system. An ECT system consists of measurement and computational modules that are connected via a network circuit. The measurement module includes a flexible ECT sensor, which could fit on the curvature surface of radius larger than 25 mm with a mechanical manipulator. The computational module is used for SCC sizing. It includes a database of ECT signals that are used to execute numerical calculations. SCC sizing can be evaluated by comparing the measured ECT signals with the calculated ECT signals within the database. We have demonstrated that the system could be used to estimate the SCC length and depth sizing in 140 s. The accuracy of length sizing showed an RMS error of 3.7 mm and the depth sizing was 0.63 mm in this work.
KW - Complicated shaped parts
KW - Eddy current testing
KW - Flexible sensor
KW - Network
KW - Nondestructive inspection
KW - Stress corrosion cracking
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U2 - 10.3327/taesj.J07.013
DO - 10.3327/taesj.J07.013
M3 - Article
AN - SCOPUS:47849087734
SN - 1347-2879
VL - 7
SP - 142
EP - 151
JO - Transactions of the Atomic Energy Society of Japan
JF - Transactions of the Atomic Energy Society of Japan
IS - 2
ER -