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利用光纤光栅在双侧悬臂梁中的啁啾实现对挠度和应力的传感研究
引用本文:张伟刚,董新永,赵春柳,开桂云,赵启大,袁树忠,刘志国,董孝义.利用光纤光栅在双侧悬臂梁中的啁啾实现对挠度和应力的传感研究[J].光学学报,2001,21(11):309-1312.
作者姓名:张伟刚  董新永  赵春柳  开桂云  赵启大  袁树忠  刘志国  董孝义
作者单位:南开大学现代光学研究所,
基金项目:国家博士点基金,天津市科技攻关项目 (0 0 310 40 11)资 助课题
摘    要:报道一种利用双侧悬臂梁展宽光纤光栅带宽实现对挠度和应力线性传感的新方法,理论研究与实验结果表明,光纤光栅的带宽对挠度及外力均很敏感,并呈线性关系,实验上传感范围超过17nm,传感灵敏度分别达到0.658nm/mm及5.32nm/N。

关 键 词:光纤光栅  啁啾效应  双侧悬臂梁  带宽  线性传感  应力  挠度

Study of Deflection and Stress Sensing Using Fiber Grating Chirp Effect in Bilateral Cantilever Beam
Zhang Weigang,Dong Xinyong,Zhao Chunliu,Kai Guiyun\ Zhao Qida,Yuan Shuzhong\ Liu Zhiguo\ Dong Xiaoyi.Study of Deflection and Stress Sensing Using Fiber Grating Chirp Effect in Bilateral Cantilever Beam[J].Acta Optica Sinica,2001,21(11):309-1312.
Authors:Zhang Weigang  Dong Xinyong  Zhao Chunliu  Kai Guiyun\ Zhao Qida  Yuan Shuzhong\ Liu Zhiguo\ Dong Xiaoyi
Abstract:A new linear sensing method of deflection and stress, in which the fiber grating bandwidth is stretched by using bilateral cantilever beam, is reported. The theoretical studies and the experimental results show that the bandwidth of fiber grating is sensitive and linear to deflection and lateral force. In the experiments, the range of linear sensing is not less than 17 nm. The sensing sensitivities are 0.658 nm/mm and 5.32 nm/N, respectively.\{
Keywords:fiber  Bragg grating  chirp effect  bilateral cantilever beam  bandwidth  linear sensing
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