利用单光纤光栅实现力学量垂直感测的研究

被引:8
作者
张伟刚
刘艳格
王跃
开桂云
赵启大
董孝义
机构
[1] 南开大学现代光学研究所
[2] 南开大学现代光学研究所 天津
[3] 天津
关键词
光电子技术; 光纤光栅; 波长绝对编码; 力学传感器; 垂直感测;
D O I
暂无
中图分类号
O348.1 [光测法];
学科分类号
080102 ;
摘要
通过改进悬臂梁自由端结构设计 ,利用光纤光栅波长绝对编码的特性 ,实现了利用单光纤光栅对应力、位移进行了垂直感测。理论分析和实验结果证明 ,通过监测粘贴于悬臂梁固定端附近的光纤光栅波长变化的大小和指向 ,能够感测应力、位移等力学量的大小及方向。在相互垂直的方向上 ,获得的应力实验灵敏度分别为 1 87nm N和 3 4 0nm N ,位移实验灵敏度分别为 0 2 3nm mm和 0 4 1nm mm。
引用
收藏
页码:71 / 74
页数:4
相关论文
共 9 条
[1]  
Interferometric temperature-insensitive strain measurement with differentdiameter fiber Bragg gratings. M. Song,B. Lee,S. B. Lee et al. Optics Letters . 1997
[2]  
Metalcoated fiber Bragg grating sensor for electric current metering. P. M. Cavaleiro,F. M. Araujo,A. B. Lobo Ribeiro. Electronics Letters . 1998
[3]  
In-fibre Bragg grating sensors. Y. J. Rao. Measurement Science and Technology . 1997
[4]  
FBG-type sensor for simultaneous measurement of force (or displacement)and temperatures based on bilateral cantilever beam. Weigang Zhang,Xiaoyi Dong,Qida Zhao et al. IEEE Photonics Technology Letters . 2001
[5]  
FiberBragggratingsensorforsimultaneousmeasurementofdisplacementandtemperature. Y. L. Yu,H.Y .T am,W.H.Chungetal. Optics Letters . 2000
[6]  
Linear fibregrating-type sensing tuned by applying torsion stress. W. G. Zhang,X. Y. Dong,D. J. Feng et al. Electronics Letters . 2000
[7]  
Fiber Bragg grating cavity sensor for simultaneous measurement of strain and temperature. W. C. Du,X. M. Tao,H. Y. Tam. IEEE Photonics Technology Letters . 1999
[8]  
Fiber Bragg grating cryogenic temperature sensors. S. Gupta,T. Mizunami,T. Yamao et al. Applied Optics . 1996
[9]  
Distributed strain measurement based on a fiber Bragg grating and its reflection spectrum analysis. M. LeBlanc,S. Y. Huang,M. Ohn et al. Optics Letters . 1996