工频相位差测量的一种数字化实现方法

A Digitized Implementation Method of Testing Industry Frequency's Phase Difference

本文设计了正弦波整形电路、相位比较电路、锁存信号的产生电路、一定频率的计数信号发生器、LED数显电路,实现对工频信号差数字化的直接测量;并介绍了对工频信号以外信号的相差扩展测量方法。

A circuit of signal transfer, circuit of phase comparator, a circuit of signal locked, giving frequency signal generator and display circuit of LED was designed, it make the digitized testing engineering frequency＇s phase difference directly becoming realizing, and extended testing method of the other engineering frequency＇s sigual phase difference was introduced.