A method to discriminate strain and temperature in fiber Bragg grating sensors

被引：0
|
作者：
Chalapathi, Madhan T. [1 ]
Pattnaik, P. K. [1 ]
Selvarajan, A. [1 ]
Srinivas, T. [1 ]
机构：
[1] Indian Inst Sci, Dept Elect Commun Engn, Bangalore 560012, Karnataka, India
来源：
Proceedings of the ISA/IEEE 2005 Sensors for Industry Conference | 2005年
关键词：
D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A significant limitation to the applications of fiber Bragg gratings (FBG) sensors is the sensitivity of the Bragg wavelength to both temperature and strain, complicating the independent measurement of these parameters. In this letter, we explore a new method to discriminate strain and temperature in FBG sensors, which utilizes the additional wavelength dependent phase introduced by Fiber Bragg grating written on sensing arm of Mach Zehnder Interferometer (MZI). The intensity variations of the MZI output at the wavelength outside the Bragg resonance provide an additional parameter along with the Bragg wavelength shift observed at the input end for simultaneous measurement of strain and temperature.
引用
收藏
页码：126 / 128
页数：3
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