Research on Frequency Response Characteristics of Zero Flux Sensor

In the circuit detection process, the accuracy of the high-precision sensor can be operated normally under high harmonics, and the working efficiency of the power system will be greatly improved. The zero-flux sensor is an improvement to the traditional sensor, and the measurement accuracy is also required to meet the measurement requirements under higher harmonics. This paper explores the frequency response characteristics of a zero-flux sensor with high harmonics at low currents. It introduces the working principle and simulates the sensor under higher harmonics by using FLUKE power power standard source and YOKOGAWA high-precision measuring probe. The frequency response characteristic experiment, through the spectrum analysis calculation, the measurement accuracy of the zero-flux sensor in the high current harmonics can reach 0.1, and has good frequency response characteristics.