| 光纤光栅测量微挠度的研究 |
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| 引用本文： | 翟玉锋,于清华,刘艳,朱灵,张龙.光纤光栅测量微挠度的研究[J].传感器与微系统,2007,26(9):59-60,66. |
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| 作者姓名： | 翟玉锋 于清华 刘艳 朱灵 张龙 |
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| 作者单位： | 中国科学院,安徽光学精密机械研究所,安徽,合肥,230031 |
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| 基金项目： | 安徽省科技二期攻关计划 |
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| 摘 要： | 提出一种基于光纤光栅传感技术的微挠度测量系统。将B ragg光纤光栅粘贴于悬臂梁的自由端,当悬臂梁自由端受力发生微挠度弯曲时,光纤光栅将沿轴向发生形变,通过监测B ragg光纤光栅(FBG)传感器反射波长漂移可以测量出悬臂梁的微挠度变化。通过对系统结构理论分析和实验验证,该装置挠度测量范围为0~51μm,测量灵敏度达到0.05μm,线性拟合度达到0.999 7,非线性误差小于0.1%。
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| 关 键 词： | 光纤Bragg光栅 微挠度 悬臂梁 |
| 文章编号： | 1000-9787（2007）09-0059-02 |
| 修稿时间： | 2007-01-28 |
Study of testing micro-deflection based on fiber Bragg grating sensing technology |
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| ZHAI Yu-feng,YU Qing-hua,LIU Yan,ZHU Ling,ZHANG Long.Study of testing micro-deflection based on fiber Bragg grating sensing technology[J].Transducer and Microsystem Technology,2007,26(9):59-60,66. |
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| Authors: | ZHAI Yu-feng YU Qing-hua LIU Yan ZHU Ling ZHANG Long |
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| Affiliation: | Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China |
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| Abstract: | A novel micro-deflection testing system based on fiber Bragg grating(FBG)sensing technology is demmonstrated.A FBG is adhered on the free end of the standard cantilever beam with special gelatin.When the loads are applied to the end of the cantilever beam,the FBG will cause deformation along the fiber longitudinal direction.According to monitoring the wavelength shift of the FBG,the variation of the micro-flexivity of cantilever beam can be obtained.The experiment results demonstrate that the testing range of this system can reach 0～51 μm,the sensitivity of this system is about 0.05 μm,and the related linear regression coefficient is 0.999 7,The nonlinearity error is less than 0.1 %. |
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| Keywords: | fiber Bragg grating(FBG) micro-deflection cantilever beam |
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