介绍了多参数气体检测仪的检测原理,对气体传感器在多参数气体检测仪中的应用进行了设计,可实现对O2､CO､CO2､H2S､CH4等5种气体在空气中的含量检测｡可控制检测仪进行单一气体的检测,也可对5种气体进行巡回检测｡ Application of Gas Sensor in Multi-parameters Gas Detector SHI Bao-shan,ZHANG Gui-zhou (Zhengzhou Univ.of Light Ind.,Zhengzhou 450002,China) Abstract:Introduced the detecting principle of the multiparameters gas detector,and desiged method for the gas sensor application in the multiparameters gas detector.Utilizing multiparameters gas detector,it can measure strength of five kinds of gas which include O2,CO,CO2,H2S and CH4 at the same time,and can detect one kind gas in five kinds of gas. Key words:gas sensor;gas detector;design;application