基于温度补偿方法去敏的新型光纤光栅压力传感器  

New-style optical fiber bragg grating pressure sensor with temperature compensation

作　　者：王俊杰[1] 刘波[1] 张丰涛[1] 张东生[1] 

机构地区：[1]武汉理工大学光纤传感与信息处理教育部重点实验室,武汉430070

出　　处：《仪器仪表学报》2009年第11期2342-2346,共5页Chinese Journal of Scientific Instrument

基　　金：教育部科技创新工程重大项目培育资金(708064)资助

摘　　要：本文阐述了一种带温度补偿、基于平面薄板结构的新型光纤光栅压力传感器。作为弹性体的压力敏感薄板,其硬心通过一L型刚性位移传递机构拉动压力敏感FBG;温度去敏通过被动温度补偿和残留温度效应实时修正来解决。传感器性能指标测试如下:重复性0.066%FS,回程误差0.846%FS,线性度0.102%FS,传感器精度±0.591%FS;在–30℃到+80℃范围内,传感器零点漂移为+1.7208%FS,灵敏度漂移为+0.0104%FS,传感器温漂为+1.7312%FS。A new-style optical Fiber Bragg Grating （FBG） pressure sensor based on planar circle sheet with temperature compensation is described in this paper. The planar circle sheet, being as elastic element, will drive the sensing FBG stretched by an L-type rigid displacement transferring mechanism. Passive temperature-compensation package and active correction for the residual temperature drift are mutually adopted to eliminate the thermal induced errors. Research shows that＇this sensor has achieved the following performance： the repeatability, hysteresis and nonlinearity of the sensor are 0.066% FS, 0.846% FS and 0.102% FS, respectively. Therefore, the overall measurement accuracy achieved is ±0.591% FS. Within the temperature range -30℃ to ＋80℃, the zero ＇temperature excursion and sensitivity temperature excursion are 1.720 8% FS and 0.010 4% FS, respectively and the overall temperature drift is 1.731 2% FS.

关 键 词：光纤光栅 压力传感器 平面薄板结构 温度补偿 传感器温漂 零点温漂 灵敏度温漂 

分 类 号：TN253[电子电信—物理电子学]