Temperature sensing capacity of fiber Bragg grating at liquid nitrogen temperature

被引：0
|
作者：
Cai G. [1 ]
Jian W. [2 ]
机构：
[1] State Intellectual Property Office of the People's Republic of China, Beijing
[2] Lightwave Technology Institute, Beijing Jiaotong University, Beijing
来源：
Frontiers of Optoelectronics in China | 2008年 / 1卷 / 3-4期
关键词：
fiber Bragg grating (FBG); liquid nitrogen temperature; optical fiber sensing; temperature sensing;
D O I：
10.1007/s12200-008-0054-9
中图分类号：
学科分类号：
摘要：
According to the temperature sensing model of the fiber Bragg grating (FBG), a theoretical method of temperature sensing capacity of FBG is proposed. Based on the temperature sensing model of FBG, a temperature sensing experiment was completed at liquid nitrogen temperature (-2196°C). The theoretical and experimental results were compared and analyzed, which show that at liquid nitrogen temperature or in a large-scope temperature sensing, the relationship between thermal variation ΔT and relative shift of reflected center wavelength ΔλB/λB of FBG is nonlinear and conic multinomial. © 2008 Higher Education Press and Springer-Verlag GmbH.
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收藏
页码：223 / 225
页数：2
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