| 光纤BRAGG光栅温度传感的机理分析 |
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| 引用本文： | 井浩宇,张宇,陈奇,门志伟,房文汇,里佐威. 光纤BRAGG光栅温度传感的机理分析[J]. 长春理工大学学报(自然科学版), 2009, 32(2): 227-229,212 |
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| 作者姓名： | 井浩宇 张宇 陈奇 门志伟 房文汇 里佐威 |
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| 作者单位： | 中国人民解放军92941部队装备部,葫芦岛,125001;吉林大学,物理学院,长春,130021 |
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| 摘 要： | 对光纤BRAGG光栅(FBG)温度传感在77K-150K和300K-500K之间进行了测试,得出温度与波长的相关关系,并讨论了常温与低温情况下的温度与波长关系不一致的原因.77K-150K情况下,温度与波长的非线性关系主要是由电偶极子所致有效折射率变化造成的;而300K-500K情况下,温度与波长近乎线性的关系主要是由此温度范围内有效折射率恒定和石英光纤光栅的线膨胀系数所至.得到的理论公式与实验结果符合.
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| 关 键 词： | 光纤BRAGG光栅 电偶极子 有效折射率 膨胀系数 |
Mechanism Analysis on Fiber Bragg Grating Temperature Sensing |
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| JING Haoyu,ZHANG Yu,CHEN Qi,MEN Zhiwei,FAN Wenhui,LI Zuowei. Mechanism Analysis on Fiber Bragg Grating Temperature Sensing[J]. Journal of Changchun University of Science and Technology, 2009, 32(2): 227-229,212 |
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| Authors: | JING Haoyu ZHANG Yu CHEN Qi MEN Zhiwei FAN Wenhui LI Zuowei |
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| Affiliation: | JING Haoyu1,ZHANG Yu1,CHEN Qi1,MEN Zhiwei2,FAN Wenhui2,LI Zuowei2 (1. The Armament Department,The Chinese People's Liberation Army 92941,Huludao 125001 2.Physics College Jilin University,Changchun 130021 ) |
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| Abstract: | Fiber Bragg grating(FBG) sensing is measured at both 77k-150k and 300k-500k, the relative relation between temperature and wavelength is observed, the inconsistent reason of temperature and wavelength is researched at normal and low temperature. About 77K-150K , the electric dipole lead effect refractive index to change ,which result in nonlinear relation of temperature and wavelength ; about 300K-500K, the consistent effect refractive index and the linear expansion coefficient of silica fiber grating lead ... |
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| Keywords: | fiber BRAGG grating electric dipole effect refractive index expansion coefficient |
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