Characteristics of Focusing Probe in Pulsed Eddy Current Detection of Water-Wall Tube Corrosion

被引：0

作者：

Tao, Aijun ^{[1
]}

Yang, Fan ^{[1
,3
]}

Fu, Yuewen ^{[1
]}

Huang, Wenfeng ^{[1
]}

Xing, Renfei ^{[1
]}

Tang, Chenhuai ^{[2
]}

Cao, Aisong ^{[2
]}

机构：

[1] Key Laboratory of Nondestructive Test of Ministry of Education, Nanchang Hangkong University, Nanchang

[2] Shanghai Special Equipment Supervision and Inspection Technology, Shanghai

[3] Foshan Metro Operation Co., Ltd., Foshan

来源：

Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis | 2025年 / 45卷 / 02期

关键词：

detection sensitivity; focusing probe; pulsed eddy current; water-wall tube; weighted rank sum ratio;

D O I：

10.16450/j.cnki.issn.1004-6801.2025.02.022

中图分类号：

学科分类号：

摘要：

To address the challenge that different focusing probe orientations affect detection sensitivity during fire-side corrosion thinning inspection of waterwall tubes, this study combines numerical simulations and experimental validation. Numerical simulations analyze eddy current morphology and the magnetic flux density distribution in water-wall tube under radial, transverse and longitudinal orientations of cylindrical excitation coils. Quantitative xyz-axis magnetic flux calculations determine three-dimensional detection sensitivity metrics. Experimental measurements employ tunnel magnetoresistance sensors to quantify three-dimensional(xyz)detection sensitivity across coil orientation configurations. A weighted rank sum ratio method evaluates and ranks the performance of the three excitation orientations. The results show that the transverse probe orientation achieves superior detection performance compared to radial and longitudinal configurations. The findings provide critical insights for designing high-sensitivity pulsed eddy current probes, significantly enhancing corrosion detection capabilities in waterwall tubes. © 2025 Nanjing University of Aeronautics an Astronautics. All rights reserved.

引用

页码：367 / 375and416

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