摘要
介绍了光纤布拉格光栅传感器测温原理,并通过实验对裸光纤光栅的温度特性进行了研究。实验采用恒温水浴装置,在室温至80℃温度范围内分别使用了中心波长位于1 550 nm附近的两只光纤布拉格光栅进行测量。实验结果表明,光纤光栅在所测温度范围内呈现较好的线性特性,与理论结果一致。此外,还研究了光纤光栅在实际应用中的问题。
The sensing theory of fiber optic Bragg grating （FBG） for temperature measurement is introduced. The thermal characteristics of bare FBGs is analysed by a constant temperature water bath apparatus to calibrate the thermal response of two FBGs with the central wavelength around 1 550 nm, and the temperature rang is from room temperature to about 80℃. The experimental results that come to be coincident with the theoretical conclusion show a linear relationship between the central wavelength of the FBG and the thermal variation. Besides, some problems encountered in the practical applications are presented.
出处
《测控技术》
CSCD
2006年第3期24-26,共3页
Measurement & Control Technology
