Experiment on FBG temperature sensor in cryogenic environment

Cai Guoli; Jian Wei

doi:10.13756/j.gtxyj.2006.06.019

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Experiment on FBG temperature sensor in cryogenic environment

- Experiment on FBG temperature sensor in cryogenic environment
- Study on Optical communication Issue 6, Pages: 56-57(2006)
- 作者机构：
  
  1. 北京交通大学光波技术研究所
  2. 北京交通大学光波技术研究所北京100044
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2006.06.019
  CLC： TP212.14;TN253
- Published：2006，
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[1]蔡国利,简伟.光纤光栅在液氮温区温度传感性能的研究[J].光通信研究,2006(06):56-57.

Cai Guoli, Jian Wei. Experiment on FBG temperature sensor in cryogenic environment. [J]. (6):56-57(2006)
[1]蔡国利,简伟.光纤光栅在液氮温区温度传感性能的研究[J].光通信研究,2006(06):56-57. DOI： 10.13756/j.gtxyj.2006.06.019.

Cai Guoli, Jian Wei. Experiment on FBG temperature sensor in cryogenic environment. [J]. (6):56-57(2006) DOI： 10.13756/j.gtxyj.2006.06.019.

摘要

文章从光纤光栅的温度传感模型出发

理论分析了光纤光栅的温度传感特性

完成了在液氮温区（-196℃）的温度测量。将理论与实验结果进行对比分析后得知

在液氮温区或者大范围测温中

反射波长相对漂移量ΔλB/λB与温度改变量ΔT的关系是非线性的

呈二次关系式。

Abstract

A theoretical method for Fiber Bragg Grating（FBG） temperature sensing has been proposed.Based on a temperature sensing model of FBG

a temperature sensing experiment is conducted at liquid nitrogen temperature（-196 ℃）.The theoretical and experimental results are compared and analyzed

which shows that at liquid nitrogen temperature or in large-scope temperature sensing

the relationship between the temperature variation ΔT and the relative shift of the reflected center wavelength Δλ

/λ

of FBG is nonlinear and conic multinomial.

关键词

光纤布拉格光栅光纤传感温度传感液氮温区

Keywords

FBGoptical fiber sensingtemperature sensingliquid nitrogen temperature

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