High-Resolution Defect Visualization With Zero-Magnetic Zone Sensing Structure

被引：0

作者：

Ru, Gaige ^{[1
]}

Xue, Songwen ^{[1
]}

Gao, Bin ^{[1
]}

Tang, Qin ^{[1
]}

Wang, Hao ^{[2
]}

Qing, Yong ^{[3
]}

Zheng, Gang ^{[4
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Automat Engn, Chengdu 611731, Peoples R China

[2] PetroChina Changqing Oilfield Co, 1 Gas Prod Plant, Xian 718500, Peoples R China

[3] SNPC China Petr West Pipeline Co Ltd, Chongqing 401147, Peoples R China

[4] Sichuan Deyuan Pipeline Technol Co Ltd, Chengdu 610041, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2025年 / 25卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Sensors; Magnetic fields; Magnetic circuits; Magnetic shielding; Magnetic noise; Magnetic resonance imaging; Magnetic sensors; Probes; Magnets; Eddy currents; High-resolution array; magnetic repulsion mechanism; multitype defect; zero-magnetic field;

D O I：

10.1109/JSEN.2024.3494034

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel electromagnetic nondestructive testing (NDT) method is developed based on a high-resolution array sensing structure within a proposed U-shaped zero-magnetic zoning field. This design leverages the magnetic repulsion mechanism to create a homogeneous zero-magnetic region in the middle of a U-shaped zoning structure. This innovation aims to enhance both defect sensitivity and imaging capabilities. In particular, we provide a detailed analysis of sensing mechanism of both magnetic field refraction and magnetic circuit function. Experiments of high-resolution detection with various defects across different specimens have been effectively validated. In addition, the integration of 3-D data ultimately improved the signal-to-noise ratio (SNR) and defect resolution.

引用

页码：1416 / 1427

页数：12

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