A high sensitive FBG pressure sensor using thin metal diaphragm

被引：64
|
作者：
Pachava V.R. [1 ]
Kamineni S. [1 ]
Madhuvarasu S.S. [1 ]
Putha K. [1 ]
机构：
[1] Department of Physics, National Institute of Technology Warangal, Warangal
来源：
Journal of Optics | 2014年 / 43卷 / 2期
关键词：
Circulator; Compressor; Diaphragm; Fiber Bragg grating; Optical spectrumanalyzer; Pressure sensor;
D O I：
10.1007/s12596-014-0186-9
中图分类号：
学科分类号：
摘要：
A high sensitive pressure sensor using fiber Bragg grating (FBG), integrated with thin metal diaphragm is designed and investigated both theoretically and experimentally. Under pressure the diaphragm deflection causes an axially stretched-strain along the length of the FBG. The pressure sensitivity of the sensor gained from the test results is 2.05×10 -2 MPa-1, approximately four orders of magnitude higher than that can be measured with the bare FBG. Experimental results showed good agreement with the proposed theoretical results. © The Optical Society of India 2014.
引用
收藏
页码：117 / 121
页数：4
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