Research on Nondestructive Testing Technology of Grounding Network
Jianbiao Shou, Ping Fang, Min Xu, Jianchen Chen, Shan Zhu · 2023
A state of grounding mesh conductor nondestructive testing system and method, injection of a certain frequency and signal emission system to ground net.through must have the strength of the current sine wave signal, the signal receiving system of remote control of unmanned aerial vehicle (uav) to carry signal collecting device, detection in ground surface fast cruise for data collection, complete branch conductor of grounding systems located in the space area nearby the surface excitation magnetic field detection. The Beidou BDS/GPS dual-mode satellite positioning and navigation system, magnetic field detection unit and data wireless transmission system carried by the remote-controlled UAV wirelessly transmit space coordinate data information and synchronous magnetic field data information to the terminal host computer system composed of wireless receiving unit, computer and software. By receiving, storing, summarizing and analyzing the data in real time, the magnetic field distribution on the ground surface of the ground grid can be obtained quickly, the state of the ground grid can be transmitted and the safety performance of the ground grid can be evaluated. The technique studied in this paper is characterized by simple operation, high efficiency and accurate diagnosis.