T
Tetsuya Uchimoto
Researcher at Tohoku University
Publications - 213
Citations - 2378
Tetsuya Uchimoto is an academic researcher from Tohoku University. The author has contributed to research in topics: Eddy-current testing & Eddy current. The author has an hindex of 21, co-authored 195 publications receiving 1877 citations. Previous affiliations of Tetsuya Uchimoto include University of Tokyo & Akita Prefectural University.
Papers
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Implementation of electromagnetic acoustic resonance in pipe inspection
TL;DR: In this article, the authors used EMAR to evaluate the thickness of pipes in a nuclear power plant during its shutdown through signal processing based on superposition of n th compression, and compared the results obtained with EMAR and ultrasonic testing.
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High-Selectivity imaging of the closed fatigue crack due to thermal environment using surface-acoustic-wave phased array (SAW PA)
Yoshikazu Ohara,Taro Oshiumi,Xiaoyang Wu,Tetsuya Uchimoto,Toshiyuki Takagi,Toshihiro Tsuji,Tsuyoshi Mihara +6 more
TL;DR: In this paper, the authors examined the fatigue-crack closure induced by heat processing using a surface-acoustic-wave phased array (SAW PA), which is a phased array imaging method using Rayleigh waves, which can sensitively visualize defects in the vicinity of surfaces.
Proceedings ArticleDOI
Natural crack sizing based on eddy current image and electromagnetic field analyses
TL;DR: In this paper, an eddy current testing (ECT) system with multi-coil type probes is applied to size up cracks fabricated on austenite stainless plates, which consist of transmit-receive type sensors as elements to classify crack directions, working as two scan direction modes simultaneously.
Journal ArticleDOI
Mechanism study for directivity of TR probe when applying Eddy current testing to ferro-magnetic structural materials
Shurui Zhang,Tetsuya Uchimoto,Tetsuya Uchimoto,Toshiyuki Takagi,Toshiyuki Takagi,Mitsuo Hashimoto,Sho Takeda +6 more
TL;DR: In this paper, the authors investigated the behavior of the ECT signal for different angles between the crack orientation and the centerline of the probe in experiments and numerical analysis, and confirmed the presence of magnetic flux leakage and explained the difference in the directivity of a TR pancake probe between ferromagnetic and non-ferromagnetic materials.