Recent Progress on Electromagnetic Field Measurement Based on Optical Sensors

磁致伸缩 磁场 法拉第笼 干涉测量 电场 压电 法拉第效应 光场 光电子学 材料科学 灵敏度(控制系统) 声学 光学 电子工程 物理 工程类 量子力学
作者
Jun Peng,Shuhai Jia,Jiaming Bian,Shuo Zhang,Jianben Liu,Xing Zhou
出处
期刊:Sensors [Multidisciplinary Digital Publishing Institute]
卷期号:19 (13): 2860-2860 被引量:73
标识
DOI:10.3390/s19132860
摘要

Electromagnetic field sensors are widely used in various areas. In recent years, great progress has been made in the optical sensing technique for electromagnetic field measurement, and varieties of corresponding sensors have been proposed. Types of magnetic field optical sensors were presented, including probes-based Faraday effect, magnetostrictive materials, and magnetic fluid. The sensing system-based Faraday effect is complex, and the sensors are mostly used in intensive magnetic field measurement. Magnetic field optical sensors based on magnetic fluid have high sensitivity compared to that based on magnetostrictive materials. Three types of electric field optical sensors are presented, including the sensor probes based on electric-optic crystal, piezoelectric materials, and electrostatic attraction. The majority of sensors are developed using the sensing scheme of combining the LiNbO3 crystal and optical fiber interferometer due to the good electro-optic properties of the crystal. The piezoelectric materials-based electric field sensors have simple structure and easy fabrication, but it is not suitable for weak electric field measurement. The sensing principle based on electrostatic attraction is less commonly-used sensing methods. This review aims at presenting the advances in optical sensing technology for electromagnetic field measurement, analyzing the principles of different types of sensors and discussing each advantage and disadvantage, as well as the future outlook on the performance improvement of sensors.
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