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。
By comparing the heating effect of an unknown AC signal to that from a known DC reference, metrologists can determine the RMS AC quantity (voltage or current) in terms of the DC quantity.
为了对比一个已知直流参考的未知交流信号热效应，计量人员可以确定在一段时间内直流的交流有效值(电压或电流)。
The circuit shown in Figure 25 is the heart of an average reading, rms calibrated AC voltmeter.
图25是一个平均值输出，有效值刻度的交流电压表头放大电路。
Its main ideas are that the AC waves are described through some AC instantaneous values in a period, and then RMS values and other concerned parameters are worked out.
它的主要思想就是在一个周期内用若干个交流信号瞬时值描述该交流信号波形，并计算出有效值及其它有关参数。
In this paper several methods of the true RMS AC-DC conversion are exemplified, and the advantages of various methods are compared.
本文介绍几种真有效值交直流转换的方法，并对各种方法的优缺点进行了比较。
Complete engine, generator, and mains protection with 3-phase true RMS AC sensing.
完整的发动机，发电机，水管和保护与3相真有效值交流传感。
Complete engine, generator, and mains protection with 3-phase true RMS AC sensing.
完整的发动机，发电机，水管和保护与3相真有效值交流传感。
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