传感技术学报2019，Vol.32Issue(1)：62-66,5.DOI:10.3969/j.issn.1004-1699.2019.01.011
基于自偏置磁-机-电耦合效应的电流传感器研究
Research on Current Sensor Based on Self-Biased Magnetic-Mechanical-Electric Coupling Effect
摘要
Abstract
This paper presents a novel current sensor based on self-biased magnetic-mechanical-electric coupling effect, which is composed of a magnetoelectric laminate SrFe12 O19/FeCuNbSiB/PZT, a mass and a base. The magnetoelectric laminate SrF e12 O19/FeCuNbSiB/PZT has a self-biased magnetic-mechanical-electric coupling effect. By coupling the vortex magnetic field around a current-carrying cable, the proposed sensor has a large output voltage and electric current sensitivity without additional DC bias magnetic field. Experimental results demonstrate that the presented sensor has a higher sensitivity of 198.91 mV/A at 50 Hz current and the induced output voltage shows a good linear relationship to the applied 50 Hz current. Also, the sensor can distinguish small step changes of 0.01 A current. The proposed current sensor based on self-biased magnetic-mechanical-electric coupling effect has great application prospect in current monitoring field.关键词
电流传感器/磁电层合材料/自偏置/电流监测Key words
current sensor/magnetoelectric laminate/self-biased/current monitoring分类
信息技术与安全科学引用本文复制引用
吴宇,杨爱超,欧正宇,鲁彩江,周海,朱忍忍,高宏力..基于自偏置磁-机-电耦合效应的电流传感器研究[J].传感技术学报,2019,32(1):62-66,5.基金项目
国家自然科学基金项目(61801402,51775452) （61801402,51775452）
国网江西省电力有限公司科技项目(521820180004) （521820180004）
中央高校基本科研业务费项目(A0920502051707-2-014) （A0920502051707-2-014）
