| 大应变光纤Bragg光栅传感器的研究 |
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| 引用本文： | 吴堃,李川,李英娜,许晓平,许江淳,陈焰.大应变光纤Bragg光栅传感器的研究[J].传感技术学报,2011,24(8):1141-1145. |
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| 作者姓名： | 吴堃 李川 李英娜 许晓平 许江淳 陈焰 |
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| 作者单位： | 昆明理工大学信息工程与自动化学院,昆明,650500 |
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| 基金项目： | 云南省计划科技基金项目“本安光纤光栅热工传感器的研究”(2007F181M) |
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| 摘 要： | 在通信光纤的长期允许应变为3000 με的基础上,研制了一种测量应变范围为0～6000 με的大应变光纤Bragg光栅传感器.在外加应力的作用下,固定支点的相对位置发生变化,从而带动应变管发生轴向形变,导致了粘贴在调节管两端的光纤Bragg光栅按比例产生了Bragg波长移位.通过荷载,对大应变光纤Bragg光栅传感器进...
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| 关 键 词： | 应变传感器 光纤Bragg光栅 应变减敏 Bragg波长 调节管 紧固管 |
Research of Fiber Bragg Grating Sensor with Large Stain |
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| WU Kun,LI Chuan,LI Yingna,XU Xiaoping,XU Jiangchun,CHEN Yan.Research of Fiber Bragg Grating Sensor with Large Stain[J].Journal of Transduction Technology,2011,24(8):1141-1145. |
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| Authors: | WU Kun LI Chuan LI Yingna XU Xiaoping XU Jiangchun CHEN Yan |
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| Affiliation: | WU Kun,LI Chuan,LI Yingna,XU Xiaoping,XU Jiangchun,CHEN Yan(Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650500,China) |
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| Abstract: | The fiber Bragg grating(FBG)sensor with the stain of 0～6 000 με is developed based on the long-term stain in fiber which is less than 3 000 με.By the external forces,the relative position of the fixed pivots are changed,which causes the axial deformation of the strain tube leading to the Bragg wavelengths shift in proportion of FBG attached at two ends of the adjusting tubes.Through loading,the sensor is stretched.The experimental results show that the response sensitivity of the sensor is 1.783 pm / kg,the stain sensitivity is 0.685 pm/με,and the maximum stain range could be 5 250 με. |
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| Keywords: | stain sensor fiber Bragg grating stain desensitization Bragg wavelength adjusting tube fastening tube |
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