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首页> 外文期刊>Optics and Lasers in Engineering >Dynamic strain measurement using two wavelength-matched fiber Bragg grating sensors interrogated by a cascaded long-period fiber grating
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Dynamic strain measurement using two wavelength-matched fiber Bragg grating sensors interrogated by a cascaded long-period fiber grating

机译：使用两个波长匹配的光纤布拉格光栅传感器进行动态应变测量，该传感器由级联的长周期光纤光栅询问

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摘要

In this work, we describe a fiber Bragg grating (FBG) sensing system using two wavelength-matched FBG sensors for static and dynamic strain measurement. A cascaded long-period fiber grating (CLPG)-based demodulation technique has been used to interrogate the two wavelength-matched FBG sensors. Experimental results of static strain measurement show that the proposed system has a strain resolution of 1 με. This system has also been used for dynamic strain measurement. An eddy current displacement meter-based system has been used as a comparison measurement. Experimental results of dynamic strain measurement have proved that the FBG sensing system has a good performance in the measurement of dynamic strain. The results of static and dynamic strain measurement indicate that the sensing system using two wavelength-matched FBG sensors is superior to the single FBG sensor system.
机译：在这项工作中，我们描述了使用两个波长匹配的FBG传感器进行静态和动态应变测量的光纤布拉格光栅（FBG）传感系统。基于级联的长周期光纤光栅（CLPG）的解调技术已用于询问两个波长匹配的FBG传感器。静态应变测量的实验结果表明，该系统的应变分辨率为1με。该系统也已用于动态应变测量。基于涡流位移计的系统已用作比较测量。动态应变测量的实验结果证明，FBG传感系统具有良好的动态应变测量性能。静态和动态应变测量结果表明，使用两个波长匹配的FBG传感器的传感系统优于单个FBG传感器系统。

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  • 来源
    《Optics and Lasers in Engineering》 |2012年第2期|p.199-203|共5页
  • 作者

    Hongbo Zou; Dakai Liang; Jie Zeng;

  • 作者单位

    MOE Key Laboratory of Mechanics and Control for Aerospace Structures, University of Aeronautics and Astronautics, Nanjing 210016, PR China,College of Electric Engineering and Renewable Energy, Three Gorges University, Yichang 443002, PR China;

    MOE Key Laboratory of Mechanics and Control for Aerospace Structures, University of Aeronautics and Astronautics, Nanjing 210016, PR China;

    MOE Key Laboratory of Mechanics and Control for Aerospace Structures, University of Aeronautics and Astronautics, Nanjing 210016, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fiber bragg grating; cascaded long-period fiber grating; sensors; dynamic strain measurement;

    机译：光纤布拉格光栅级联长周期光纤光栅;传感器动态应变测量;

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