一种电压有效值的低温漂、高精度测量方案

A low excursion with temperature and high precision measurement method for RMS of voltage

电力参数电压有效值的测量一般都是采用真有效值来测量,测量中人们关心的是测量准确度和测量稳定性,即温度漂移特性。本文利用专用高性能真有效值(RMS)测量芯片AD736,并结合单片机技术给出了一种高精度、高稳定度、低温度漂移的交流电压有效值测量方法。

We usually use true RMS to measure the voltage of power parameters. In this case we are concerned about the precision and stability of the measurement,that is the measuring result excursion with temperature,this paper reports a high precision, high stability and low excursion with temperature measurement method for true RMS by using a true RMS measurement chip AD736 combined with singlechip microcontroller.