基于光纤光栅的温度传感器的设计  

Design of Temperature Sensor Based on Optical Fiber Bragg Grating

作　　者：刘学 覃翠[1] 王淑强 何圆 刘鑫鹏 LIU Xue;QIN Cui;WANG Shuqiang;HE Yuan;LIU Xinpeng(Department of Communication Engineerings,Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]南京工程学院通信工程学院,江苏南京211167

出　　处：《现代信息科技》2018年第11期1-4,共4页Modern Information Technology

摘　　要：系统阐述了光纤光栅的测温原理,包括温度和应力对光纤光栅反射谱的影响,研究了光纤光栅温度传感模型,对光纤光栅温度传感原理和模型进行分析。根据仿真设计出实验模型,对光纤光栅进行应力补偿封装,从而消除应力的影响。把封装好的传感器放在水浴箱中,改变水浴温度,测试光功率在不同温度下的变化情况。把光功率计换成光谱仪,测试在不同温度情况下反射光谱发生的变化,得出温度-波长曲线,从而设计出光纤光栅温度传感器模型。The temperature measurement principle of fiber grating is systematically described,including the effect of temperature stress on the reflection spectrum of fiber grating. The fiber grating sensing model is studied and the temperature sensing model of fiber grating is analyzed. An experimental model was designed based on the simulation to stress-compensate the fiber grating to eliminate the influence of stress. Place the packaged sensor in a water bath,change the temperature of the bath,and measure the change in optical power at different temperatures. The optical power meter was replaced with a spectrometer to measure the changes in the reflected spectrum at different temperatures,and the temperature-wavelength curve was obtained. Thus,a fiber grating temperature sensor model was designed.

关 键 词：光纤光栅传感器 温度传感器 光谱仿真 光纤传感 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]