强电场干扰下桥体加反干扰源tgδ测量方法的研究

Research on the Measurement Method of tgδ Under Strong Interference of Electric Field by Appending a Anti—Interference Resource to Bridge

本文简要阐述了外电场干扰电流在电桥桥臂上的不同影响,提出了一种创新的消除干扰电流影响的测量方法,并对方法原理作了较为深入的分析。同时对其研制的反干扰源装置和试验操作方法作了简单介绍,对现场测试工作有较好的参考价值。

This paper describes in brief the different influences of interference current induced by external electric field acting on the bridge arms. A new measurement method to dispel the influence of interference current is developed and its principle is analysed. The anti—interference resource device developed with this principle is characterized and its operation method is introduced briefly. It has better reference value for test on site.