| 光纤Bragg光栅粘贴式应变传感器的研究 |
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| 引用本文： | 杜彦良,刘展曦,李剑芝.光纤Bragg光栅粘贴式应变传感器的研究[J].铁道科学与工程学报,2008,5(6):10-12. |
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| 作者姓名： | 杜彦良 刘展曦 李剑芝 |
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| 作者单位： | [1]河北省大型结构健康诊断与控制重点实验室,河北石家庄050043 [2]石家庄铁道学院大型结构健康诊断与控制研究所,河北石家庄050043 |
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| 基金项目： | 河北省自然科学基金重点资助项目(E2006000389); 国家自然科学基金资助项目(50778116) |
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| 摘 要： | 在分析光纤Bragg光栅的温度应变交叉敏感机理的基础上，设计并制作了一种新型的具有温度补偿和应变增敏效果的光纤Bragg光栅表面粘贴式应变传感器。实验结果表明：传感器的应变敏感性增至原来的1．6倍，温度敏感性降低至封装前的17％，具有良好的温度补偿和应变增敏效果；该传感器可用于对铁路铁轨、桥梁、隧道等的健康监测。
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| 关 键 词： | 光纤Bragg光栅 应变传感器 温度补偿 应变增敏 |
Study on fiber Bragg grating attached strain sensor |
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| DU Yan-liang,LIU Chen-xi,LI Jian-zhi.Study on fiber Bragg grating attached strain sensor[J].Journal of Railway Science and Engineering,2008,5(6):10-12. |
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| Authors: | DU Yan-liang LIU Chen-xi LI Jian-zhi |
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| Abstract: | Based on the mechanism of the fiber Bragg grating's cross-sensitivity to temperature and strain,a new fiber Bragg grating superficial bonded strain sensor with temperature compensation and strain sensibilization was designed and fabricated.The experiment result shows that the sensitivity to strain of the sensor is increased to 1.6 times compared to that of the grating without packaging,and that the sensitivity to temperature is reduced to 17%.The strain sensor has the effect of temperature compensation and ... |
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| Keywords: | fiber Bragg grating strain sensor temperature compensation strain sensibilization |
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