铁路机车车辆用车轮的外径测量装置的精度分析

Precision analysis of device for measuring the outside diameter of locomotive vehicle wheel

从测量原理出发,将实际应用中常见几种因素的影响抽象为计算模型,对目前在我国铁路系统普遍使用的一种车轮外径测量装置的测量精度进行了分析,认为这种测量方式有误差放大的缺陷,不适合精度要求高的车轮外径测量。

By means of constructed calculating models for the effect of common factors in practical application according to measure principle, measuring precision of the device that is widely applied to measure outside diameter of locomotive wheel is analyzed. It is deemed that this measuring means may magnify error and is unfit for the wheel diameter measure which high precision is required.