Research on pulsed eddy current technology for local corrosion defects

Yang Han; Qin Wang; Xiaorui Liu

doi:10.1117/12.3007044

25 October 2023 Research on pulsed eddy current technology for local corrosion defects

Yang Han, Qin Wang, Xiaorui Liu

Proceedings Volume 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023); 1280117 (2023) https://doi.org/10.1117/12.3007044
Event: Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 2023, Dalian, China

Abstract

Pulsed eddy current (PEC) detection technology has been widely applied in nuclear power, petrochemical, and other fields. PEC has a high detection rate for large-area corrosion and thinning. However, since the PEC detection results mainly provide the average wall thickness of the probe's focal area, its capability to detect local corrosion defects and pitting is relatively low. In this paper, for ferromagnetic materials, we propose a method based on area weighting to subdivide the region of interest and perform imaging correction on the detection data of local defects, to make the measured values of local defect pulsed eddy current closer to the true wall thickness.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yang Han, Qin Wang, and Xiaorui Liu "Research on pulsed eddy current technology for local corrosion defects", Proc. SPIE 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 1280117 (25 October 2023); https://doi.org/10.1117/12.3007044

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