Analysis of Eddy Current Testing Signals' Frequency Responses and Conductivity-Invariant Crack Sizing

研究成果: 書籍の章/レポート/Proceedings会議への寄与査読

抄録

The eddy current testing (ECT) signals of a crack change with the crack's geometry and electromagnetic properties. The conductivity of the specimen and the conductivity inside or around the crack are generally unknown but play important roles in ECT responses. The objective of this study is to find characteristics features to determine the depth of cracks independently of the material conductivity and the partial conductivity of the cracks. Theoretical and numerical analysis showed that the amplitudes of the intrinsic impedance signal or the magnetic field density signal vary little with frequency. By identifying nearly conductivity-invariant features in the spectra of magnetic flux density signals and constructing a master curve that correlates the characteristic features with crack depth, we will be able to approximately estimate the depth of a crack by referring to the pre-constructed master curve.

本文言語英語
ホスト出版物のタイトル2023 IEEE International Magnetic Conference, INTERMAG 2023 - Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9798350332469
DOI
出版ステータス出版済み - 2023
イベント2023 IEEE International Magnetic Conference, INTERMAG 2023 - Sendai, 日本
継続期間: 2023 5月 152023 5月 19

出版物シリーズ

名前Digests of the Intermag Conference
2023-May
ISSN(印刷版)0074-6843

会議

会議2023 IEEE International Magnetic Conference, INTERMAG 2023
国/地域日本
CitySendai
Period23/5/1523/5/19

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