Electromagnetic Tomography System for Defect Detection of High-Speed Rail Wheel

被引：0
|
作者：
Miao Y. [1 ]
Liu X. [2 ]
Liu Z. [1 ]
Yue Y. [1 ]
Wu J. [1 ]
Huo J. [1 ]
Li Y. [1 ]
机构：
[1] School of Electronic Information Engineering, Beijing Jiaotong University, Beijing
[2] School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou
来源：
Journal of Beijing Institute of Technology (English Edition) | 2020年 / 29卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Defect detection; Electromagnetic tomography(EMT); High-speed rail wheel; Image reconstruction;
D O I：
10.15918/j.jbit1004-0579.20047
中图分类号：
学科分类号：
摘要：
A novel electromagnetic tomography(EMT) system for defect detection of high-speed rail wheel is proposed, which differs from traditional electromagnetic tomography systems in its spatial arrangements of coils. A U-shaped sensor array was designed, and then a simulation model was built with the low frequency electromagnetic simulation software. Three different algorithms were applied to perform image reconstruction, therefore the defects can be detected from the reconstructed images. Based on the simulation results, an experimental system was built and image reconstruction were performed with the measured data. The reconstructed images obtained both from numerical simulation and experimental system indicated the locations of the defects of the wheel, which verified the feasibility of the EMT system and revealed its good application prospect in the future. © 2020 Journal of Beijing Institute of Technology
引用
收藏
页码：474 / 483
页数：9
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