| 软件控制吸收型光纤气敏传感器 |
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| 引用本文： | 张宇,张爱军.软件控制吸收型光纤气敏传感器[J].仪表技术与传感器,2005(11):13-14. |
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| 作者姓名： | 张宇 张爱军 |
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| 作者单位： | 武汉理工大学光纤传感技术研究中心,湖北,武汉,430070 |
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| 基金项目： | 湖北省重大攻关项目（2001AA101A02） |
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| 摘 要： | 研究了一种易于实现的软件控制光谱吸收型光纤气体传感器.采用LED作为光源,利用可调谐法布里-珀罗腔的选频特性进行检波,并采用谐波检测,大大提高了检测的灵敏度.同时采用多光路设计和软件控制相结合,在线检测多种气体,克服了以往气体传感器只能检测一种气体的缺点,大大增加了传感器的适用性.
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| 关 键 词： | 光纤气敏传感器 光吸收 可调谐法布里-珀罗腔 |
| 文章编号： | 1002-1841（2005）11-0013-02 |
| 收稿时间： | 2005-02-24 |
| 修稿时间： | 2005-08-30 |
Software Controllable Absorptive Optical Fiber Gas Sensor |
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| ZHANG Yu,ZHANG Ai-jun.Software Controllable Absorptive Optical Fiber Gas Sensor[J].Instrument Technique and Sensor,2005(11):13-14. |
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| Authors: | ZHANG Yu ZHANG Ai-jun |
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| Affiliation: | Optical Fiber Sensing Technology Research Center, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | An easy-realizable gas sensing system using absorption type optic fiber was studied. With the frequency-selecting property of tunable Fabry-Perot Cavity, using LED as light source, the detection sensitivity has been greatly improved by harmonic measurement. And several kinds of gas concentration can be detected by multi-pass design and software control. It overcomes the shortage of traditional gas sensors that can only detect one kind of gas, which improves its applicability greatly. |
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| Keywords: | Optical Fiber Gas Sensor Optic Absorption Tunable Fabry-Perot Cavity |
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