摘要
设计并实现了一种新结构的大电流传感器,其核心是由PZT压电材料和Terfenol-D磁致伸缩材料构成的圆片形磁电层合材料,配合铁氧体磁环,可较准确地测量几安到几百安范围内的工频电流。该电流传感器的结构设计具有无需直接接入主电路、无需额外提供电源的优点,可以随时装卸,便于安装和维护。试验测试得到该电流传感器的电流测量灵敏度为0.058 5 V/A,并具有一定的可靠性。这种新型的大电流传感器具有继续研究的价值和应用潜力。
A new type of high-current sensor is designed and developed in this paper. Its hardcore is a disc-shaped magnetoelectric laminate based on piezoelectric material PZT and magnetoelectric material TerfenolD. Combined with the ferrite magnetic circular,the sensor can measure power-frequency current over the range of A - 102 A. The structure of this current sensor has the advantages of no-circuit-connection and no-extra-sourcesupply. Thus,it is convenient to install,maintain or uninstall. The experiment results illustrate that the sensor has an electric current sensitivity of 0. 058 5 V/A,and the sensor shows good reliability. This new type of a highcurrent sensor has great potential of further researches and applications.
出处
《电工技术学报》
EI
CSCD
北大核心
2016年第23期70-76,共7页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(50877039)
清华大学自主科研计划资助项目
关键词
磁电效应
磁电层合材料
大电流传感器
Magnetoelectric effect
magnetoelectric laminate material
high-current sensor
