PHASE MEASURING DEVICE WITH HIGH ACCURACY IN PRECISION PHASE MEASURING VOLTAGE METER DEVICE

摘要

The present invention relates to a technical method about circuit design for precise phase measurement in a linear variable differential transformer phase angle voltage meter. Also, the present invention relates to a device for performing a function by forming a linear circuit of a phase angle voltage meter without using an LVDT conditioner IC to measure a reference value of a precise LVDT signal. According to the present invention, a circuit is designed to improve accuracy on a phase voltage around a neutral point by measuring an LVDT phase angle voltage.;COPYRIGHT KIPO 2017