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。
For AC voltage measurement, an RMS converter circuit or a precision rectifier circuit convert the AC signal into a DC voltage.
我们使用了真有效值转换集成芯片AD536研制成功PTCR残余电流测试仪，本文叙述了该仪器的原理。
We used a monlithic Integrated circuit AD536 which performs ture rms-to-dc conversion. This paper describes the principle of the PTCR remainder current instrument with AD536.
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。
In this paper several methods of the true RMS AC-DC conversion are exemplified, and the advantages of various methods are compared.
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