| 分布式光纤裂缝传感技术的试验研究 |
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| 引用本文： | 闵兴鑫,孙曼,刘浩吾.分布式光纤裂缝传感技术的试验研究[J].石河子大学学报,2009,27(2):240-243. |
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| 作者姓名： | 闵兴鑫 孙曼 刘浩吾 |
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| 作者单位： | 四川大学水电学院,成都,610065
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| 摘 要： | 为探讨光纤-混凝土复合体在开裂过程中形成的力学-光学本构关系，本文采用模型试验方法对混凝土裂缝监测的分布式光纤传感力学-光学本构关系进行了实测标定，将试验结果中的混凝土裂缝宽度和光损耗值绘于坐标图上，分别采用半对数坐标幂函数拟合和普通坐标的多项式拟合2种方法建立了二者之间的函数关系。2种拟合方法结果的比较表明，普通坐标多项式拟合法优于半对数坐标幂函数拟合法。
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| 关 键 词： | 分布式光纤传感 光纤裂缝传感:模型试验 力学-光学本构关系 曲线拟合 |
Experimental Study on Technology of Distributed Optical Fiber Crack Sensing |
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| MIN Xingxin,SUN Man,LIU Haowu.Experimental Study on Technology of Distributed Optical Fiber Crack Sensing[J].Journal of Shihezi University(Natural Science),2009,27(2):240-243. |
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| Authors: | MIN Xingxin SUN Man LIU Haowu |
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| Institution: | College of Water Conservancy and Hydropower;Sichuan University;Chengdu 610065;China |
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| Abstract: | Using the technology of distributed optical fiber sensing for concrete crack monitoring needs to master the mechanics-optics constitutive relation during fiber-concrete complex being cracking.So the mechanics-optics constitutive relation of distributed optical fiber sensing for concrete crack sensing has been calibrated by using the method of model tests.The experimental results of the concrete crack width and optic loss have been painted on coordinated Fig.and the function relations of optic loss to crack ... |
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| Keywords: | distributed optical fiber sensing optic-fiber crack sensing model tests mechanics--optics constitu- tive relation curve fitting |
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