一种基于磁电层合材料的新结构大电流传感器

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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。

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	卢诗华
	于歆杰
	楼国锋

关键词 ：磁电效应, 磁电层合材料, 大电流传感器

Abstract：

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 Terfenol-D.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-source-supply.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 high-current sensor has great potential of further researches and applications.

Key words： Magnetoelectric effect magnetoelectric laminate material high-current sensor

收稿日期: 2015-07-10 出版日期: 2016-12-26

PACS:

TM45

基金资助:

国家自然科学基金(50877039)和清华大学自主科研计划资助项目。

作者简介: 卢诗华男,1992年生,硕士研究生,研究方向为无线能量传输技术。E-mail:sh-lu14@mails.tsinghua.edu.cn(通信作者)于歆杰男,1973年生,博士,副教授,研究方向为脉冲电源和无线能量传输技术。E-mail:yuxj@tsinghua.edu.cn

引用本文:

卢诗华,于歆杰, 楼国锋. 一种基于磁电层合材料的新结构大电流传感器[J]. 电工技术学报, 2016, 31(23): 70-76. Lu Shihua,Yu Xinjie, Lou Guofeng. A New Magnetoelectric Laminate Based High-Current Sensor. Transactions of China Electrotechnical Society, 2016, 31(23): 70-76.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I23/70

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