运用“升程变化率”理论证明“敏感点”是凸轮检测最佳基准,推导出了凸轮检测起始转角计算公式,介绍了在凸轮检查仪上以“敏感点”为基准确定凸轮检测起始转角的操作过程和技巧。 It is proved that the “sensitive point” is the best benchmark of cam detection by the theory of “lift change rate”, and the calculation formula of starting angle of cam detection is deduced. The cam detection start is determined on the cam tester based on “sensitive point” Corner of the operation process and skills.