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目前,用于测量旋转物体转速的方法很多,精度较高的是圆光栅和感应同步这两种方法,且均采用定时测角。因时间的测量精度较高,故测量转速的精度主要取决于其测角的精度。上述两法在静态或旋转体转速较慢的情况下可实现高精度测角,但当被测物转速较高时,其测角精度如何检验需建立一种新的测量基
At present, there are many methods for measuring the rotational speed of a rotating object, and the methods with high precision are the two methods of circular grating and inductive synchronization, and both adopt the timing angle measurement. Due to the high accuracy of time measurement, the accuracy of measuring speed mainly depends on the accuracy of its angle measurement. The above two methods can achieve high precision angle measurement under static or slow rotating speed. However, when the speed of the measured object is high, how to check the accuracy of the angle measurement needs to establish a new measurement base