Optical Fiber Magnetic Sensor Based on Magnetic Fluid and Long Period Fiber Grating

被引：1
|
作者：
Chen Yajun [1 ]
Wu Xiangnong [1 ]
机构：
[1] Shanghai Normal Univ, Coll Informat Mech & Elect Engn, Div Commun Engn, Shanghai 200234, Peoples R China
来源：
17TH INTERNATIONAL CONFERENCE ON OPTICAL COMMUNICATIONS AND NETWORKS (ICOCN2018) | 2019年 / 11048卷
关键词：
refractive index sensing; magnetic fluid; optical fiber magnetic sensor;
D O I：
10.1117/12.2523008
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：
In this paper, an optical fiber magnetic sensor is proposed by combining the long-period fiber grating with the sensitivity of the external refractive index and the refractive index of the magnetic fluid with the change of the external magnetic field. Theoretically, the sensitivity is 0.03602nm/Oe and the linearity of fit is 0.9998 when the magnetic field strength ranges from 30Oe to 300Oe at room temperature of 25 degrees C.
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页数：5
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