单个光纤光栅压力和温度的同时测量

Research on the Simultaneous Measurements of Pressure and Temperature Using One Fiber Grating

采用特殊聚合物封装技术设计的小体积光纤光栅传感头具有压力和温度同时测量功能 ,能够有效地解决温度交叉敏感问题 ,利用封装过程出现的两个压力和温度灵敏系数不同的光栅反射峰 ,实现了压力和温度的单个光栅同时测量。

The small volume fiber Bragg grating (FBG) sensor head designed by using especial package technique with polymer material has the function of simultaneous measurements of pressure and temperature, which can solve the temperature cross sensitivity of FBG effectively. Simultaneous measurements of the pressure and temperature using only one grating based on the two reflective peaks with different pressure and temperature sensitivity coefficients through the process of packaging FBG are demonstrated.