| 基于FBG的CH4浓度传感系统 |
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| 引用本文： | 周斌,刘国荣,管祖光,何赛灵.基于FBG的CH4浓度传感系统[J].光电子．激光,2008,19(3):378-380. |
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| 作者姓名： | 周斌 刘国荣 管祖光 何赛灵 |
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| 作者单位： | 1. 浙江大学现代光学仪器国家重点实验室,光及电磁波研究中心,浙江,杭州,310058;浙江大学光学研究所,浙江,杭州,310058
2. 浙江大学现代光学仪器国家重点实验室,光及电磁波研究中心,浙江,杭州,310058 |
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| 基金项目： | 浙江省科技厅资助项目
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杭州市科技局科技创新资助项目 |
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| 摘 要： | 提出了一种基于光纤布拉格光栅(FBG)的新型CH4浓度传感方案.利用CH4催化元件将CH4浓度信息转化为温度信息,并映射为FBG反射波长的漂移量.将自制的FBG封装成CH4传感器,并实验获得了FBG反射波长漂移量与环境CH4浓度的曲线.验证了采用传感FBG和参考FBG的斜边检测方案可提高系统检测分辨率和温度稳定性.
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| 关 键 词： | CH4浓度传感 光纤布拉格光栅(FBG) 斜边检测 浓度传感 传感系统 based concentration system sensing 温度稳定性 检测分辨率 检测方案 验证 曲线 环境 波长漂移量 反射波长 实验 传感器 封装 自制 映射 温度信息 |
| 文章编号： | 1005-0086（2008）03-0378-03 |
| 收稿时间： | 2007-03-09 |
| 修稿时间： | 2007-08-08 |
An optical sensing system for the concentration of CH4 based on FBG |
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| ZHOU Bin,LIU Guo-rong,GUAN Zu-guang,HE Sai-ling.An optical sensing system for the concentration of CH4 based on FBG[J].Journal of Optoelectronics·laser,2008,19(3):378-380. |
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| Authors: | ZHOU Bin LIU Guo-rong GUAN Zu-guang HE Sai-ling |
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| Affiliation: | ZHOU Bin1,2,LIU Guo-rong1,GUAN Zu-guang1**,HE Sai-ling1(1.Centre for Optical , Electromagnetic Research,State Key Laboratory for Modern Optical Instrumentation,Zhejiang University,Hangzhou 310058,China,2.Institute of Optics,China) |
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| Abstract: | Based on a special catalyst and fiber Bragg gratings(FBGs),an optical sensing system is proposed to measure the concentration of CH4.The temperature around the catalyst rises rapidly as the CH4 concentration increases,which can be detected by an FBG-type sensor through monitoring the wavelength shift of the reflection spectrum.By employing a well-matched FBG as a reference,the wavelength shift of the sensing FBG can be transformed effectively into the variation in the measured optical intensity.An experimen... |
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| Keywords: | sensor the concentration of methane fiber Bragg grating(FBG) edge-detection |
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