The results show that the phase shift angle can be measured accurately based on the cross-spectrum method with equivalent intervalsampling of workpiece rotary angles.
结果表明，利用等工件转角间隔采样通过互功率谱密度方法可以实现相位差的精确在线测试。
2
In order to solve the problem of reducing spectrum leakage, a new algorithm based on equal angle-intervalsampling principle is proposed according to the cyclic shift character of base phasor.