| Electromagnetic Tomography System for Defect Detection of High-Speed Rail Wheel |
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| 作者姓名： | Yu Miao Xianglong Liu Ze Liu Yuanli Yue Jianli Wu Jiwei Huo Yong Li |
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| 作者单位： | School of Electronic Information Engineering, Beijing Jiaotong University, Beijing 100044, China;School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China |
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| 基金项目： | the National Natural Science Foundation of China(61771041) |
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| 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.
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| 关 键 词： | electromagnetic tomography(EMT) high-speed rail wheel defect detection image reconstruction |
| 收稿时间： | 2020/5/12 0:00:00 |
Electromagnetic Tomography System for Defect Detection of High-Speed Rail Wheel |
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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. |
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| Authors: | Yu Miao Xianglong Liu Ze Liu Yuanli Yue Jianli Wu Jiwei Huo Yong Li |
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| Affiliation: | School of Electronic Information Engineering, Beijing Jiaotong University, Beijing 100044, China;School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China |
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| Abstract: | 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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| Keywords: | electromagnetic tomography(EMT) high-speed rail wheel defect detection image reconstruction |
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