倾斜光纤光栅的传感特性  

Sensing Characteristics of Tilted Fiber Bragg Grating

作　　者：赵薇[1] 励强华[1] Zhao Wei;Li Qianghua(Harbin Normal University)

机构地区：[1]哈尔滨师范大学

出　　处：《哈尔滨师范大学自然科学学报》2020年第4期39-44,共6页Natural Science Journal of Harbin Normal University

基　　金：黑龙江省自然科学基金资助项目(ZD201401)。

摘　　要：探究倾斜光纤光栅的温度和应变传感原理,并通过实验数据对温度与波长、透射率的变化情况进行线性拟合,结论表明无论是应变的改变还是温度的改变都可以造成TFBG纤芯模和"ghost mode"的谐振峰向长波长方向移动,呈线性增长,具有良好的线性关系,且TFBG对应变的灵敏度大于对温度的灵敏度.该方法具有测量方便等优点,在实际应用中具有一定的价值.The principle of temperature sensing and strain sensing of tilting fiber grating is explored. The changes of temperature and wavelength, temperature and transmittance are fitted linearly by laboratory data. The results show that the change of strain and temperature can cause the red shift of TFBG fiber core mode and "Ghost Mode"resonance peak. It grows linearly, which has a good linear relationship. The sensitivity of TFBG to strain is greater than to temperature.This method has the advantages of convenient measurement and has certain application value in practical application.

关 键 词：倾斜光纤光栅 温度传感 应变传感 

分 类 号：TP253[自动化与计算机技术—检测技术与自动化装置]