Accelerometer based on all-fiber Fabry-Perot interferometer formed by hollow-core photonic crystal fiber

被引:1
|
作者
Ke T. [1 ]
Zhu T. [1 ,2 ]
Rao Y. [1 ,2 ]
Xu M. [1 ]
Shi C. [1 ]
机构
[1] Key Laboratory of Optoelectronic Technology and Systems, Chongqing University
[2] Key Laboratory of Broadband Optical Fiber Transmission and Communication Networks Technologies, University of Electronic Science and Technology of China, Chengdu
来源
关键词
Accelerometer; Cantilever; Fabry-Perot interferometer; Optical fiber sensors; Photonic crystal fiber; Sensors;
D O I
10.3788/CJL20103701.0171
中图分类号
学科分类号
摘要
All-fiber Fabry-Perot accelerometer based on cantilever structure is investigated. The Fabry-Perot structure is formed by hollow core photonic crystal fibers (HCPCF) and normal single mode fiber by using simple cleaving and splicing methods. Such kind of Fabry-Perot sensing structure is sensitive to strain, but is non-sensitive to temperature and bending. We analyze the relationship between the cavity length of HCPCF Fabry-Perot and light intensity, photoelectric detector voltage and the eccentricity of the free end of cantilever. Finally, we get the simple theoretical formula of computing acceleration. Experimental results show that this kind of Fabry-Perot can be used to measure acceleration, the resolution of the measuring system is about 8.42×10-7 g, and the sensitivity is 0.3386 V/g.
引用
收藏
页码:171 / 175
页数:4
相关论文
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