FBG Magnetic Field Sensor Based on Magnetostrictive Displacement Amplification

IF 4.3 2区综合性期刊 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Sensors Journal Pub Date : 2024-12-31 DOI:10.1109/JSEN.2024.3522138

Wenzhong Huang;Xinglin Tong;Fanchao Zeng;Yuhan Wang;Chengfei Li;Chuan Zeng

引用次数: 0

Abstract

Magnetic field measurement is crucial in various fields, such as biomedicine, electromechanical devices, rotational speed measurement, and positioning technology. However, the sensitivity of current fiber Bragg grating (FBG) magnetostrictive material-based magnetic field sensors is constrained by the magnetostrictive coefficient of the magnetostrictive material itself. This study investigates a highly sensitive FBG magnetic field sensor that employs Terfenol-D material to detect magnetic fields. Magnetostrictive deformation of Terfenol-D is amplified through a displacement amplification mechanism and subsequently applied to the FBG, thus achieving high-sensitivity magnetic field measurements. Experimental tests demonstrate that the sensor structure provides approximately 3.6 times amplification for both static and alternating magnetic fields. Therefore, the FBG magnetic field sensor can reach high-sensitivity measurements of both static and alternating magnetic fields.

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基于磁致伸缩位移放大的光纤光栅磁场传感器

磁场测量在生物医学、机电设备、转速测量和定位技术等诸多领域都是至关重要的。然而，目前基于光纤布拉格光栅（FBG）磁致伸缩材料的磁场传感器的灵敏度受到磁致伸缩材料本身的磁致伸缩系数的限制。本文研究了一种采用Terfenol-D材料检测磁场的高灵敏度光纤光栅磁场传感器。Terfenol-D的磁致伸缩变形通过位移放大机制放大，随后应用于FBG，从而实现高灵敏度的磁场测量。实验测试表明，该传感器结构对静磁场和交变磁场都能提供约3.6倍的放大。因此，FBG磁场传感器可以实现对静磁场和交变磁场的高灵敏度测量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Sensors Journal 工程技术-工程：电子与电气

CiteScore

7.70

自引率

14.00%

发文量

2058

审稿时长

5.2 months

期刊介绍： The fields of interest of the IEEE Sensors Journal are the theory, design , fabrication, manufacturing and applications of devices for sensing and transducing physical, chemical and biological phenomena, with emphasis on the electronics and physics aspect of sensors and integrated sensors-actuators. IEEE Sensors Journal deals with the following: -Sensor Phenomenology, Modelling, and Evaluation -Sensor Materials, Processing, and Fabrication -Chemical and Gas Sensors -Microfluidics and Biosensors -Optical Sensors -Physical Sensors: Temperature, Mechanical, Magnetic, and others -Acoustic and Ultrasonic Sensors -Sensor Packaging -Sensor Networks -Sensor Applications -Sensor Systems: Signals, Processing, and Interfaces -Actuators and Sensor Power Systems -Sensor Signal Processing for high precision and stability (amplification, filtering, linearization, modulation/demodulation) and under harsh conditions (EMC, radiation, humidity, temperature); energy consumption/harvesting -Sensor Data Processing (soft computing with sensor data, e.g., pattern recognition, machine learning, evolutionary computation; sensor data fusion, processing of wave e.g., electromagnetic and acoustic; and non-wave, e.g., chemical, gravity, particle, thermal, radiative and non-radiative sensor data, detection, estimation and classification based on sensor data) -Sensors in Industrial Practice