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Volume 29Issue 4
Dec. 2020
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Yu Miao, Xianglong Liu, Ze Liu, Yuanli Yue, Jianli Wu, Jiwei Huo, Yong Li. Electromagnetic Tomography System for Defect Detection of High-Speed Rail Wheel[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2020, 29(4): 474-483. doi: 10.15918/j.jbit1004-0579.20047
Citation: Yu Miao, Xianglong Liu, Ze Liu, Yuanli Yue, Jianli Wu, Jiwei Huo, Yong Li. Electromagnetic Tomography System for Defect Detection of High-Speed Rail Wheel[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2020, 29(4): 474-483.doi:10.15918/j.jbit1004-0579.20047

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

doi:10.15918/j.jbit1004-0579.20047
Funds:the National Natural Science Foundation of China(61771041)
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  • Corresponding author:professor, Ph.D. E-mail:zliu@bjtu.edu.cn
  • Received Date:2020-05-12
  • Publish Date:2020-12-30
  • 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.
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