电测与仪表2016，Vol.53Issue(15)：28-32,5.
基于巨磁电阻传感器的微弱电流测量方法研究
Research on weak current measuring method based on giant magneto-resistance sensor
摘要
Abstract
It will provide powerful support for identif-ying the operating status of HVDC bushing by on-line measuring the weak current.A novel weak current measuring method based on giant magneto-resistance ( GMR) sensor is pres-ented in this paper.The principle of GMR and the GMR based weak current measuring principle are introduced at first, and then, the suitable GMR sensor is selected through test, and the test system is design, which is utilized to construct the test in laboratory, and the feasibility of the scheme is varified.The existing problem and the improving direction are discussed at last.关键词
巨磁电阻传感器/高压直流套管/微弱电流/在线检测Key words
GMR sensor/HVDC bushing/weak current/on-line monitoring分类
信息技术与安全科学引用本文复制引用
李忠晶,鞠登峰,周兴,仇一凡,李玉涛,钱政..基于巨磁电阻传感器的微弱电流测量方法研究[J].电测与仪表,2016,53(15):28-32,5.基金项目
超、特高压变压器现场工厂化检修及故障诊断技术研究” （）
