本文针对空间凸轮难以精密测量及检测的问题，提出了一种简单、快速与实用的空间凸轮廓面加工误差检测新方法。
In view of the problem of difficult to measure and inspect spatial cams, a simple, rapid and applied error inspection method for spatial cams is provided in this paper.
文章分析了在圆分度误差测量中应用谐波分析法处理数据的原理，同排列互比法相比，用此法可以减少检测工作量。
Data are processed by harmonic-analysis method in the error separation of circular division. This method can reduce the workload of inspection.
通过检测A相一个周期的同一边沿，可精确判断其旋转方向，给出了无误差测量的实现方法。
Through detecting the same edge in one period of Phase a to judge its direction of rotation precisely, a method for error-free measurement has been given.
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