材料科学
磁场
光纤
灵敏度(控制系统)
光纤传感器
多模光纤
纤维
单模光纤
温度测量
光子晶体光纤
芯(光纤)
光电子学
光学
电子工程
物理
复合材料
量子力学
工程类
作者
Ronghui Xu,B. Luo,Yanchao Xu,Yuxin Wei,Xingyu Zhang,Houquan Liu,Ming Chen,Libo Yuan
出处
期刊:IEEE Sensors Journal
[Institute of Electrical and Electronics Engineers]
日期:2024-01-01
卷期号:: 1-1
标识
DOI:10.1109/jsen.2023.3347605
摘要
An all-optical fiber magnetic field and temperature simultaneous measurement sensor based on single mode fiber (SMF)-multimode fiber (MMF)-SMF-hollow core fiber (HCF)-SMF structure is proposed. The sensing structure is sealed with a capillary tube infiltrated with magnetic fluid. By varying the external magnetic field and temperature, the transmission spectrum of the sensor will occur changes accordingly. The sensing structure transmission spectra for the variation of magnetic field and temperature are investigated. In the experiment, the magnetic field sensitivity of -0.865 dB/mT in the range of 47-60 mT and temperature sensitivity of 0.519 dB/°C in the range of 27-43 °C are obtained, respectively. Our MMI-typed optical fiber sensor has the advantages of easy manufacturing, simple structure, good mechanical properties, low cost and high sensitivity. The simultaneous measurement of magnetic field and temperature eliminates their mutual interference. The proposed magnetic field sensor has potential applications in several fields, such as electric power industry, geological prospecting and marine magnetic exploration.
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