双栅型轮辐式光纤光栅压力传感器  

Double-grating Spoke FBG Pressure Sensor

作　　者：罗建花[1] 开桂云[1] 刘波[1] 曹晔[1] 赵健[1] 高宏伟[1] 张伟刚[1] 董孝义[1] 

机构地区：[1]南开大学现代光学所,天津300071

出　　处：《光电子．激光》2005年第8期890-892,共3页Journal of Optoelectronics·Laser

基　　金：国家科技部"863"计划资助项目(2002A313110);天津市科技重大攻关资助项目(043182011)

摘　　要：利用光纤光栅(FBG)作为基本传感元件,研制了一种基于轮辐式压力盒装置的FBG压力传感器.将2根不同波长的FBG粘贴在传感器同一轮辐的正反面上,提高了测量精度,减少了波长随温度漂移带来的影响.在0～30 kN的范围内,其测量线性度达到99.98%,灵敏度达到13.89 N,且响应速度快.A novel fiber Bragg grating（FBG） sensor based on spoke-structure pressure box by utilizing FBG as the element sensing component is presented. A novel method sticking two gratings with different wavelengths on the front and back surfaces of the same spoke is proposed,which improved measuring precision and reduced the influence from the shift of wavelength with temperature. Within the range of 0～30 kN, its linearity and sensitivity reach 99.98% and 13.89 N, respectively. Furthermore, it has excellent repeatability and high response speed.

关 键 词：轮辐式 光纤光栅(FBG) 压力 传感 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]