| 基于光谱吸收式光纤乙炔气体监测系统的研 |
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| 引用本文： | 王玉田,李晓昕,刘占伟,郭媛,王忠.基于光谱吸收式光纤乙炔气体监测系统的研[J].传感技术学报,2004,17(4):619-622. |
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| 作者姓名： | 王玉田 李晓昕 刘占伟 郭媛 王忠 |
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| 作者单位： | 燕山大学电气工程学院,河北,秦皇岛,066004 |
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| 基金项目： | 河北省自然科学基金，黑龙江省自然科学基金 |
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| 摘 要： | 选用分布反馈式半导体激光器(DFB LD)作为激发光源,带尾纤的气体吸收气室作为传感器的探测头,以及锁相放大器来提取信号,并通过谐波检测技术对所提取的微弱信号进行处理,设计了一套远距离在线测量乙炔气体的监测仪器.经过理论分析和系统实验,表明系统设计方案可行,具有较高的精度和一定的应用前景.
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| 关 键 词： | 乙炔 分布反馈式半导体激光器 锁相放大 谐波检测 在线测量 |
| 文章编号： | 1004-1699(2004)04-0619-04 |
| 修稿时间： | 2004年5月22日 |
Study of C2 H2 Optic2Fiber Monitoring System Based on Spectrum Absorption |
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| WANG Yutian,LI Xiaoxin,LIU Zhanwei,GU Yuan,WANG Zhongdong.Study of C2 H2 Optic2Fiber Monitoring System Based on Spectrum Absorption[J].Journal of Transduction Technology,2004,17(4):619-622. |
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| Authors: | WANG Yutian LI Xiaoxin LIU Zhanwei GU Yuan WANG Zhongdong |
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| Affiliation: | College of Electronic Engineeing , Yanshan University ,Qinhuangdao Hebei 066004 , China |
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| Abstract: | A novel optical fiber sensor for monitoring acetylene (C 2H 2) gases is described. Selecting Distributed Feedback Laser Diode (DFB LD) as light resource and the gas absorbing cell with fiber pigtail as its sensor, and using lock in amplifier to distill signal and harmonic measure technology to process that distilled faint signals, we design an instrument of remote and on-line measuring acetylene. Through theory analysis and system experiment, the design of the system is practicable, better precise and prospective. |
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| Keywords: | acetylene (C_2H_2) distributed feedback laser diode(DFB LD) lock-in amplifier harmonic measure on-line measuring |
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