【摘要】 本文简要分析了低频信号的相位差测量原理,并以数字式相位测量方法为例介绍了低频相位测量仪的设计方法,该方法以单片机最小系统作为主控部件,以CPLD作为计数部件。更多还原

【Abstract】 This text synopsis analyzed the phase shift of the low frequency signal measures the principle, and take arithmetic figure type mutually measure method as an example introduced the low frequency mutually measures the instrumental design method, that method is used as with the single minimum system in a machine the lord controls the parts, with CPLD the conduct and actions counts the parts.更多还原