Online measurement for surface defects of running wheel set

Kaihua Wu; Fei Zhuang; Feng Zhu; Ting Ye

doi:10.1117/12.783742

17 January 2008 Online measurement for surface defects of running wheel set

Kaihua Wu, Fei Zhuang, Feng Zhu, Ting Ye

Proceedings Volume 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 672354 (2008) https://doi.org/10.1117/12.783742
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

Abstract

Wheel set tread defects include scotching and flaking on wheel tread. The paper presents an online measuring method to detect wheel set defects based on optoelectronic technique while the train is running in low-speed within 5-10km/h. Line structure laser illuminates on the wheel tread. High speed CCD cameras were used to gather tread image. Digital image process technique is used to process the data. The measuring device is installed along the straight railway. When the vehicle is running in a limited speed, the devices placed on both sides of the railway can get depth, length and position of possibly existed wheel defects. The measuring accuracy of defects length was 1.0mm.

Citation Download Citation

Kaihua Wu, Fei Zhuang, Feng Zhu, and Ting Ye "Online measurement for surface defects of running wheel set", Proc. SPIE 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 672354 (17 January 2008); https://doi.org/10.1117/12.783742

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