| 基于F-P扫描干涉仪的长周期光纤光栅传感解调系统研究 |
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| 引用本文： | 赵洪霞,鲍吉龙,丁志群,陈莹,王金霞.基于F-P扫描干涉仪的长周期光纤光栅传感解调系统研究[J].光电子技术,2008,28(3). |
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| 作者姓名： | 赵洪霞 鲍吉龙 丁志群 陈莹 王金霞 |
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| 作者单位： | 宁波工程学院电子与信息程学院,浙江,宁波,315016 |
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| 基金项目： | 浙江省自然科学基金，浙江省宁波市自然科学基金 |
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| 摘 要： | 利用F-P扫描干涉仪的滤波特性,提出了一种可应用于长周期光纤光栅传感解调的新方法.即利用F-P扫描干涉仪对长周期光纤光栅的某一级透射谱进行波长扫描,通过探测器实现光电转换,电压比较器对滤波光束电压进行比较,检测最小电压,借助F-P驱动电压进行定标确定传感元的波长,实现信号解调.通过与光谱仪监测值进行对比,得到实验结果与监测值基本吻合,且具有很好的重复性.
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| 关 键 词： | 长周期光纤光栅 传感 F-P扫描干涉仪 解调 |
Research on Long Period Fiber Grating Demodulation with a Fabry-Perot Scanning Interferometer |
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| ZHAO Hong-xia,BAO Ji-long,DING Zhi-qun,CHEN Ying,WANG Jin-xia.Research on Long Period Fiber Grating Demodulation with a Fabry-Perot Scanning Interferometer[J].Optoelectronic Technology,2008,28(3). |
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| Authors: | ZHAO Hong-xia BAO Ji-long DING Zhi-qun CHEN Ying WANG Jin-xia |
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| Affiliation: | ZHAO Hong-xia,BAO Ji-long,DING Zhi-qun,CHEN Ying,WANG Jin-xia(Electronic , Information Engineering College,Ningbo University of Technology,Zhejiang Ningbo 315016,CHN) |
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| Abstract: | A novel demodulation method of long period fiber grating sensor is presented.Based on the filter characteristics of F-P scanning interference,it is used as the filter component of the demodulation system.One of transmission spectrum of LPFG sensor has been interrogation by F-P scanning interferometer,and a photo detector has monitored the distribution of the transmitted intensity.Comparing the shifted can demodulate the sensing signal and the results are in good agreement with the values motorized with a sp... |
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| Keywords: | long period fiber grating sensor Fabry-Perot scanning interferometer demodulation |
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