变速旋转机械的锁相倍频测试技术

Study of phase lock and multiple frequency technique on rotating machinery with shifting velocity

本文介绍了基于虚拟仪器技术的变速旋转机械的锁相倍频测试技术,用硬件方式剔除了测试过程中机械转速不恒定对信号分析的影响,提高了故障诊断的准确性。

The approach of phase lock and multiple frequency technique on rotating instrument is presented.It eliminates the influence of the uneven rotating velocity on signal analysis,and promotes the fault diagnosis.