TEMPERATURE-INSENSITIVE 2D FIBER BRAGG GRATING TILT SENSOR

被引：9
作者：
Dong, Xinyong [1 ]
Hu, Limin [1 ]
Shao, Liyang [1 ]
Wang, Yunpeng [1 ]
Zheng, Jie [1 ]
机构：
[1] China Jiliang Univ, Inst Optoelect Technol, Hangzhou 310018, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2013年 / 55卷 / 02期
基金：
中国国家自然科学基金;
关键词：
fiber Bragg grating; tilted sensor; intensity measurement;
D O I：
10.1002/mop.27281
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：
A novel temperature-insensitive tilt sensor is proposed based on two fiber Bragg gratings (FBGs), which were embedded in a cylindrical cantilever-based pendulum in two orthogonal planes. Tilt-induced bending of the pendulum changes bandwidths and hence reflected optical powers of the two FBGs. Intensity-measurements of two-dimensional (2D) tilt angles can be realized without temperature dependence. Theoretical analysis and experimental verification have been carried out. Sensitivity of 42.97 nW/degrees with measurement accuracy of 0.27 degrees has been achieved over a range up to +/- 15 degrees. (C) 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55: 344-346, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27281
引用
收藏
页码：344 / 346
页数：4
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