基于可调F-P腔的光纤气体传感器研究  

Study on fiber optic gas sensor based on tunable Fabry-Perot cavity

作　　者：王立新[1] 刘柱[1] 徐丹[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：《传感器与微系统》2007年第6期63-64,共2页Transducer and Microsystem Technologies

摘　　要：设计了一种基于可调法布里—珀罗(F-P)腔的气体体积分数测量方案:引入标准光栅作为参考,解决了F-P腔选频特性受温度影响的难题;利用谐波检测的方法提高了测量的灵敏度;可以用于多种气体体积分数的检测;最后,利用乙炔气体进行了实验验证,取得了较好的效果。A scheme is designed to measure the gas volume fraction based on tunable Fabry-Perot（F-P） cavity. Standard grating as reference is imported to solve the problem that the characteristic of choosing frequency of F-P cavity is influenced by temperature; harmonic detection is used to improve the measuring sensitivity; volume fraction of different gases can be detected; lastly, an experiment with C2H2 is designed to validate the scheme,and has a good result.

关 键 词：光纤传感 气体体积分数 法布里-珀罗腔 

分 类 号：TP212.4[自动化与计算机技术—检测技术与自动化装置]