FBG Current Sensing System Based on Giant Magnetostrictive Material

CHEN Xiao; YI Yong-xian; FAN Jie; ZHOU Yu; JIANG Ming-shun; SUI Qing-mei

doi:10.13756/j.gtxyj.2016.02.016

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FBG Current Sensing System Based on Giant Magnetostrictive Material

更新时间：2022-06-28

- FBG Current Sensing System Based on Giant Magnetostrictive Material
- Study on Optical communication Issue 2, Pages: 50-52(2016)
- 作者机构：
  
  1. 江苏省电力公司电力科学研究院
  2. 国家电网公司电能计量重点实验室
  3. 山东大学控制科学与工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2016.02.016
  CLC： TP212
- Published：2016，
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[1]陈霄,易永仙,范洁,周玉,姜明顺,隋青美.基于超磁致伸缩材料的FBG电流传感系统[J].光通信研究,2016(02):50-52.

CHEN Xiao, YI Yong-xian, FAN Jie, et al. FBG Current Sensing System Based on Giant Magnetostrictive Material. [J]. Study on Optical communication (2):50-52(2016)
[1]陈霄,易永仙,范洁,周玉,姜明顺,隋青美.基于超磁致伸缩材料的FBG电流传感系统[J].光通信研究,2016(02):50-52. DOI： 10.13756/j.gtxyj.2016.02.016.

CHEN Xiao, YI Yong-xian, FAN Jie, et al. FBG Current Sensing System Based on Giant Magnetostrictive Material. [J]. Study on Optical communication (2):50-52(2016) DOI： 10.13756/j.gtxyj.2016.02.016.

摘要

基于GMM（超磁致伸缩材料）的FBG（光纤布拉格光栅）电流传感器具有光学电流传感器的优点。利用自行配制的环氧树脂胶将FBG与GMM封装为一体作为传感器探头

通过增加偏置磁场改变传感器的静态工作点

采用高频性能良好的铁氧体材料作为导磁回路

约束交变电流产生的磁场并引导进入传感器探头

进而将电流的变化转变成为FBG的波长变化

通过FBG解调系统实现电流测量。通过实验对该传感器的静态和动态响应进行测试

取得了良好的实验结果。

Abstract

The current sensor based on Giant Magnetostrictive Material（GMM）and Fiber Bragg Grating（FBG）has the advantages of optical current sensor.In this paper

a sensor probe is formed by combining FBG and GMM using home-made epoxy glue.The static operation point of sensor is changed by adding a bias magnetic field.Ferrite material with good high-frequency performance is used as magnetism-guided loop to confine and send the magnetic field into the sensor probe.The magnetic field is generated by the alternating current.Then the change of current is turned into the wavelength shift of FBG.Thus the current measurement can be realized through the FBG demodulation system.Static and dynamic responses of the sensor are tested experimentally.The experimental result shows that the proposed method can effectively measure the current.

关键词

电流传感器超磁致伸缩材料光纤布拉格光栅

Keywords

current sensorgiant magnetostrictive materialfiber Bragg grating

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