J4 ›› 2010, Vol. 27 ›› Issue (4): 503-507.

• 纤维与波导光学 • 上一篇    下一篇

单光纤光栅的温度、压力双参量测量分析

赵玲君, 余震虹   

  1. 江南大学通信与控制工程学院, 江苏 无锡 214122
  • 收稿日期:2009-08-27 修回日期:2009-09-17 出版日期:2010-07-28 发布日期:2010-06-13
  • 通讯作者: 余震虹(1962-),男,浙江淳安人,江南大学副教授、硕士生导师,主要研究方向为光纤通信和通信信号处理。 E-mail:yuzhenhong1962@163.com
  • 作者简介:赵玲君(1986-),女,江苏扬州人,江南大学通信研究所硕士生,主要研究方向为光纤光栅传感方面。E-Mail: zlj198648@163.com

Temperature and pressure dual-parameter measurement and analysis with Single fiber Bragg grating

ZHAO Ling-jun,YU Zhen-hong,YU Ying,MA Ren-kun   

  1. School of Communication and Control Engineering, Southern Yangtze University, Wuxi 214122, China
  • Received:2009-08-27 Revised:2009-09-17 Published:2010-07-28 Online:2010-06-13

摘要:

介绍了一种以悬臂梁为基底,单光纤光栅为传感元件,测量温度和压力的方法。并分析了温度和波长的非线性关系对测量结果的影响,给出了布拉格共振波长与温度的线性及非线性的适用范围。光纤光栅的裸光栅部分和预应变部分的波长与温度的的线性适用范围分别为: -11.2℃

关键词: 纤维与波导光学, 双参量测量, 光纤光栅, 等强度悬臂梁, 交叉敏感

Abstract:

A temperature and pressure measurement method is introduced, which is based on a cantilever with single fiber Bragg grating as the sensing element. And the measurement result impact of the non-linear relationship between temperature and wavelength is analyzed. Then the linear and nonlinear application scope of reflection wavelength and temperature is given.The linear application scope of wavelength and temperature of bare grating part and pre-strain part is -11.2℃

Key words: fiber and waveguide optics, dual-parameter measurement, fiber Bragg grating, equi-intensity cantilever, cross sensitivity