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Method and apparatus for measurement parameters of wheel set based on 1-D laser senor and magnetic grid sensor

机译:基于一维激光传感器和磁栅传感器的轮对参数测量方法及装置

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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.
机译:随着中国火车速度的不断提高,交通安全与民生息息相关。作为决定铁路交通可靠性和安全性的要素,必须非常准确地检测轮对。基于扫描方法,提出了一种便携式的车轮轮廓测量系统。手动拉动的扫描部件由精度达到0.05mm的一维激光传感器和解决方案达到0.05mm的磁栅传感器组成。磁头每移动0.05毫米,一维激光传感器就会将其当前数据发送到平板电脑以获取车轮轮廓。扫描完成后即可计算出几何参数,包括法兰厚度,法兰高度,轮辋宽度和QR(代表垂直磨损)。本文分析了系统误差和随机误差。误差补偿后,重复性误差在0.05mm以下,各参数的测量精度在0.1mm以下。

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