| 用光纤连接的双F-P干涉仪传感系统 |
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| 引用本文： | 王奇,张志鹏,李天应.用光纤连接的双F-P干涉仪传感系统[J].华中科技大学学报(自然科学版),1993(5). |
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| 作者姓名： | 王奇 张志鹏 李天应 |
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| 作者单位： | 华中理工大学物理系
(王奇)，华中理工大学电力工程系
(张志鹏)，华中理工大学物理系(李天应) |
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| 基金项目： | 国家自然科学基金资助课题 |
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| 摘 要： | 研制了一个由双F-P腔及有关电子系统组成的远距离传感系统,系统中多模光纤将白光传送至远处的传感双F-P腔,并将传感F-P腔的透射光送回至参考F-P腔,该透射光由一可调参考F-P腔进行分析以确定两腔间距是否相等,一个相对简单的闭环控制电子系统用来使参考腔间距跟踪传感腔间距变化,因此,传感腔间距的测量能通过测量参考腔间距得到,而参考腔间距则通过测量高压放大器输出电压而获得.
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| 关 键 词： | 传感系统 双F-P腔 多模光纤 |
A Fiber Optic Sensing System Using Dual Fabry-Perot Cavities |
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| Wang Qi Z-hang Zhipeng Li Tianying.A Fiber Optic Sensing System Using Dual Fabry-Perot Cavities[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1993(5). |
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| Authors: | Wang Qi Z-hang Zhipeng Li Tianying |
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| Institution: | Wang Qi Z-hang Zhipeng Li Tianying |
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| Abstract: | A fiber optic remote sensing system with dual F-P cavities is proposed. Multimode fiber is used to link a white light source with a remotely located sensing F-P cavity and to sent back the light transmitted through the cavity. The transmitted light is analyzed by a tunable reference cavity to see if the spacings between the cavities are equal. A relatively simple closed-loop electronic control system is used to adjust the referecne cavity spacing so as to track the variation of the sensing cavity spacing. Hence the sensing cavity spacing can be found by measuring the reference cavity spacing. |
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| Keywords: | fiber optic sensing dual Fabry-Perot cavities multimode optic fiber |
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