软件控制吸收型光纤气敏传感器  

Software Controllable Absorptive Optical Fiber Gas Sensor

作　　者：张宇[1] 张爱军[1] 

机构地区：[1]武汉理工大学光纤传感技术研究中心,湖北武汉430070

出　　处：《仪表技术与传感器》2005年第11期13-14,共2页Instrument Technique and Sensor

基　　金：湖北省重大攻关项目(2001AA101A02)

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。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.

关 键 词：光纤气敏传感器 光吸收 可调谐法布里-珀罗腔 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]