| 分布式光纤微弯应变传感器 |
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| 引用本文： | 孟爱东,骆飞,袁慎芳.分布式光纤微弯应变传感器[J].南京航空航天大学学报(英文版),2000,17(2). |
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| 作者姓名： | 孟爱东 骆飞 袁慎芳 |
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| 作者单位： | 南京航空航天大学测试工程系南京,210016 |
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| 基金项目： | 中国科学院资助项目，航空基金 |
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| 摘 要： | 分布式应变传感器对大型重要工程结构的应变状态的实时测量具有重要的应用价值.本文研究了一种基于光时域反射技术的准分布式光纤应变传感器系统,沿光纤分布各局部点的应变信息由一种新颖结构的微弯应变传感器提取.实验研究表明,此微弯应变传感器在一定的工作范围内有较高的灵敏度、较好的线性度和重复性.
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| 关 键 词： | 应变测量 应变传感器 光纤传感器 分布式 微弯 |
DISTRIBUTED MICROBEND FIBER-OPTIC STRAIN SENSOR |
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| Meng Aidong,Luo Fei,Yuan Shenfang.DISTRIBUTED MICROBEND FIBER-OPTIC STRAIN SENSOR[J].Transactions of Nanjing University of Aeronautics & Astronautics,2000,17(2). |
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| Authors: | Meng Aidong Luo Fei Yuan Shenfang |
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| Abstract: | The distributed strain sensor has significant application in real-time measurement of strain status for large and important engineering structures such as aircraft,bridge and dam. In this paper, a quasi-distributed opticalfiber strain sensor system is set up using optical time do-main reflect technique. The local strain sensors based on a novel microbend configuration are designed and applied to measure local strains along the optical fiber. As the result of the experimental research, the microbend sensors show high sensitivity, good linearity and repeatability in certain operation range. |
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| Keywords: | strain measurement strain sensor optical fiber sensor distributed micro bend |
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