用微型计算机控制锁相环(PLL)可对计量光栅信号进行数字倍频 用这种挂 术产生的角度定标脉冲去量度齿轮侍动链误差比用时钟脉冲夸理，布助于蓰壹考粤 仪器的动态检测精度．-Phase-locked loop with a micro-computer control (PLL) can be grating on the measurement of digital harmonic signal generated with this hanging point calibration t

较为详细地介绍了单同步坐标系软件锁相环，采用了单一的同步坐标系锁相控制结构，一般适用于电网电压平衡时的相位，频率及幅值的检测，以及用于多种控制结构中（下垂控制，PQ控制，双闭环控制）。-A more detailed descr iption of the principle of a single coordinate system PLL synchronization and setting PI controller parameters. SPLL with a single sync