| 埋入式光纤光栅应变测量系统的设计 |
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| 引用本文： | 程淑红,李志全.埋入式光纤光栅应变测量系统的设计[J].应用光学,2007,28(5):619-622. |
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| 作者姓名： | 程淑红 李志全 |
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| 作者单位： | 燕山大学,电气工程学院,河北,秦皇岛,066004 |
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| 摘 要： | 埋入式光纤光栅应变传感器作为大型土木结构健康监测的智能元件具有很好的发展前景。讨论了埋入式光纤光栅应变传感器的传感机理，设计了埋入式光纤光栅应变测量系统。从力学角度阐述了光栅传感探头的结构和制作工艺。采用可调谐F-P滤波器对光栅信号进行解调，解决了应变与温度交叉敏感问题。系统对应变的测量范围为0～1500με。通过理论分析证实了系统方案的可行性。
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| 关 键 词： | 埋入式光纤光栅 光纤Bragg光栅 应变测量 可调谐F-P滤波器 |
| 文章编号： | 1002-2082（2007）05-0619-04 |
| 收稿时间： | 2007/3/12 |
| 修稿时间： | 2007-03-122007-03-28 |
Design of strain measurement system with embedded fiber Bragg grating |
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| CHENG Shu-hong,LI Zhi-quan.Design of strain measurement system with embedded fiber Bragg grating[J].Journal of Applied Optics,2007,28(5):619-622. |
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| Authors: | CHENG Shu-hong LI Zhi-quan |
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| Institution: | College of Electric Engineering, Yanshan University, Qinhuangdao 066004, China |
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| Abstract: | The strain sensor with an embedded fiber Bragg grating has a great potential as an intelligent element for monitoring large construction work. The sensing mechanism of the strain sensor with an embedded fiber Bragg grating was discussed. A strain measurement system with embedded fiber Bragg grating was designed. The structure of the grating sensing probe and its fabrication were elaborated. The cross sensitivity between strain and temperature was overcome by using the tunable F-P filter to demodulate the grating signals. The strain measurement ranging from 0 to 1500 με was realized. The feasibility of the system was verified by the theoretical analysis. |
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| Keywords: | embedded fiber grating fiber Bragg grating strain measurement tunable F-P filter |
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