24 October 2017 Method and apparatus for measurement parameters of wheel set based on 1D laser sensor and magnetic grid sensor
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Proceedings Volume 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications; 1046240 (2017) https://doi.org/10.1117/12.2285349
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Abstract
With the unceasing speedup of the train in China, traffic safety has been closely related to people’s livelihood. As elements that determine the reliability and safety in railway traffic, wheel set must be detected with much accuracy. Based on scanning method, a portable measuring system for measuring profile of train wheels is presented in this paper. Scanning part, which is pulled manually, consists of an 1-D laser sensor, whose accuracy reaches 0.05mm, and a magnetic grid sensor, whose solution reaches 0.05mm. Every 0.05mm of magnetic head movement will make the 1- D laser sensor send its current data to the tablets to get the wheel profile. The geometrical parameters, including flange thickness, flange height, rim width and QR (which is representative of vertical wear) can be calculated once the scanning is done. The systematic errors and the random errors have been analyzed in this paper. After the error compensation, the repeatability error is below 0.05mm, and the measurement accuracy of each parameter is below 0.1mm.
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Peng Zhang, Peng Zhang, Qibo Feng, Qibo Feng, Jianying Cui, Jianying Cui, } "Method and apparatus for measurement parameters of wheel set based on 1D laser sensor and magnetic grid sensor", Proc. SPIE 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications, 1046240 (24 October 2017); doi: 10.1117/12.2285349; https://doi.org/10.1117/12.2285349
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