压差式FBG传感器静态压力特性实验研究
Research on differential pressure FBG sensor static hydraulic properties
摘要
在分析压差式FBG(光纤布拉格光栅)传感原理的基础上, 采用液压校验仪和Q8384光谱仪对其静态压力传感特性进行了实验研究, 并对实验结果进行了误差分析。实验结果表明, 在0~0.35 MPa的压力范围内, FBG的灵敏系数为3 pm/kPa, 布拉格波长随着压差的变化呈现出良好的线性关系和重复性, 且迟滞现象较小, 可以用于液压系统的流量测量。
Abstract
On the basis of analyzing the sensing principle of differential pressure Fiber Bragg Grating (FBG) sensors, its static differential pressure sensing properties are investigated by using a hydraulic tester and a Q8384 spectrometer and the errors of the experimental results analyzed. The results indicate that the FBG sensibility coefficient is 3 pm/kPa in the pressure range of 0~0.35 MPa and the FBG wavelength varies linearly with the differential pressure with little hysteresis effect, proving that this sensor can be used in hydraulic systems for flow measurement.
参考文献
[1] 赵兵,张志利,仲启媛. 光纤光栅传感技术在武器装备检测中的应用 [J]. 仪器仪表学报,2008, 29(7): 620-624.
[2] 郭明金,姜德生,袁宏才. 基于进口膜片的光纤光栅压力传感器的研究 [J]. 压电与声光,2006,28(8):390-392.
[3] 姚远,易本顺,肖进胜,等. 光纤布拉格光栅传感器的稳定补偿研究 [J]. 应用激光,2007,27(6):192-200.
[4] 王伯雄. 测试技术基础 [M]. 北京: 清华大学出版社, 2003.476-478.
[5] 杨丽萍,孙宝臣. 基于光纤光栅的应变和温度同时测量传感技术的研究 [J]. 传感技术学报, 2006,19(4):1215-1218.
蔡可, 刘春桐, 李洪才, 何祯鑫. 压差式FBG传感器静态压力特性实验研究[J]. 光通信研究, 2013, 39(1): 39. Cai Ke, Liu Chuntong, Li Hongcai, He Zhenxin. Research on differential pressure FBG sensor static hydraulic properties[J]. Study On Optical Communications, 2013, 39(1): 39.
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