Open AccessResearch on Calibration System of Low Frequency Electric Field Measuring Instrument
Author(s) -
JianMin Zuo,
Xiaonan Zheng
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/768/6/062109
Subject(s) - electric field , voltage , calibration , signal (programming language) , amplifier , electrical engineering , acoustics , physics , optics , electronic engineering , engineering , computer science , cmos , quantum mechanics , programming language
In order to calibrate various types of low frequency electric field measuring instruments, this paper constructs a calibration system by using the voltage amplifier. This system uses a function signal generator to output voltage signal, which is amplified by a voltage amplifier and loaded onto the plate to generate an electric field. The intensity of electric field is achieved by adjusting the distance between the two electric plates and the output multiple of the amplifier. The electric field generated by the system ranges from 30Hz to 100kHz in frequency and the field intensity ranges from 1V/m to 3kV/m. The system established in this paper is easy to operate and use, which greatly reduces the difficulty of generating continuous low-frequency electric fields in conventional calibration systems. The experimental results show that the feasibility, stability and reliability of the proposed system are superior to the traditional high-voltage source and TEM (Transverse Electric and Magnetic Field) chamber method.