Research on All-Fiber Dual-Modulation Optic Current Sensor Based on Real-Time Temperature Compensation

被引：3
作者：
Wu, Jianhua [1 ,2 ]
Zhang, Xiaofeng [3 ]
Chen, Liang [3 ]
Wu, Benxiang [3 ]
Peng, Cheng [1 ,4 ]
机构：
[1] Naval Univ Engn, Wuhan 430033, Peoples R China
[2] Inst 92853 Troops, Huludao 125106, Peoples R China
[3] Naval Univ Engn, Inst Coll Elect Engn, Wuhan 430033, Peoples R China
[4] Natl Univ Def Technol, Inst Coll Informat & Commun, Wuhan 430033, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2022年 / 14卷 / 03期
关键词：
Temperature sensors; Temperature measurement; Optical fiber sensors; Plasma temperature; Optical fiber polarization; Optical polarization; Modulation; Coherent effects; fiber optics systems; sensors; QUARTER-WAVEPLATE;
D O I：
10.1109/JPHOT.2022.3162114
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present a method to simultaneously measure the temperature and electric current, which can be applied for the all-fiber optic current sensor (AFOCS) temperature compensation. The Faraday rotation mirror is introduced as the temperature sensing unit based on the all-fiber dual-modulation optic current sensor. The temperature and electric current could be distinguished by the sequence of pulse light received by the photodetector. The working principle of temperature and electric current sensing are analyzed by modeling and simulation. The experiments are designed to confirm the temperature compensation scheme. The relative error of AFOCS decreases from 14% to 2% by temperature compensation, which meets the requirements of micro-current fiber sensing.
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页数：9
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