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山口 智彦; Mihalache, O.
International Journal of Applied Electromagnetics and Mechanics, 64(1-4), p.895 - 903, 2020/09
被引用回数：0 パーセンタイル：0.00(Engineering, Electrical & Electronic)Using an EMAT based on a Halbach magnet system it is reported smaller defect detection in thick metallic plates. The visualization of the EMAT signal using a novel C-scan procedure, based on a continuous moving of transducer and off-line signal processing, is enhanced and optimized for detection of small defects on the opposite side of thick metallic plates (50 mm). The feasibility and performance of the method, validated through experimental tests, showed an optimized two-dimensional (2D) visualization technique for EMAT signal, which can be used for surface scans of thick metallic plates with higher inspections speed.
Mihalache, O.; 山口 智彦
International Journal of Applied Electromagnetics and Mechanics, 64(1-4), p.905 - 912, 2020/09
被引用回数：0 パーセンタイル：0.00(Engineering, Electrical & Electronic)The paper presents a fast and accurate algorithm reconstruction of the magnetization model of a Halbach magnet array used in an EMAT transducer. The model error accuracy is validated against experimental measurements of magnetic field distributions through use of both theoretical formulas and 2D/3D FEM simulations based on the non-uniform distribution of reconstructed magnetization model.
