For AC voltage measurement, an RMS converter circuit or a precision rectifier circuit convert the AC signal into a DC voltage.
对于交流电压测量﹐利用有效值转换电路或精密整流器电路将交流信号转换成直流电压。
Simulation shows that the frequency measurement has preferable precision and voltage calculating is improved by frequency tracking.
该方法频率测量精度高，实行频率跟踪采样，提高了电压计算精。
Simulation shows that the frequency measurement has preferable precision and voltage calculating is improved by frequency tracking.
该方法频率测量精度高，实行频率跟踪采样，提高了电压计算精。
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