光纤FBG高压传感器的优化设计与实验研究  

Optimal design and experimental investigation on FBG high pressure sensors

作　　者：李明[1,2] 刘志愿[1] 乔学光[1,3] 傅海威[1] 贾振安[1] 邵军[1] 刘钦朋[1] 

机构地区：[1]西安石油大学光电油气测井与检测教育部重点实验室,陕西西安710065 [2]陕西渭南职业技术学院,陕西渭南714000 [3]西北大学,陕西西安710069

出　　处：《光电子．激光》2010年第4期489-491,共3页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目(60654001,60727004);国家“863”计划资助项目(2006AA06Z210,2007AA3Z413);教育部科技创新工程重大资助项目(Z08119);中石油创新基金资助项目(2008D-5006-03-08)

摘　　要：基于对FBG传感器薄壁圆筒材料和结构的优化设计,制作了FBG高压传感器,在0～50MPa压力范围,进行了加压和减压高压实验,实验结果表明:FBG的压力灵敏度为0.0374nm/MPa,其中心波长与压力变化有着良好的线性关系和重复性,且迟滞性好。模拟结果与实验结果很好吻合。Based on the optimal design for the thin wall cylinder for closing the FBG sensor at 0-50 MPa pressure range, the better sensor performance is obtained by changing the sizes of the cylinder materials and structures. The sensor is manufactured, and the high-pressure experiments are performed at the range from 0 to 50 MPa. The experimental results show that the pressure sensitivity of FBG is about 0. 037 4 nm/MPa,and there are very good linearity and repeatability between the center wavelength of FBG and pressure change with no hysteretic effect. The experiment results are consistent with the simulation ones.

关 键 词：光纤Bragg光栅(FBG) 压力传感器 ANSYS 薄壁管 

分 类 号：TN253[电子电信—物理电子学]