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
收藏
页码：1416 / 1427
页数：12
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