针对传统气体检测仪器测量精度低、稳定性差以及可测组分单一等问题,设计出一种用于工业气体分析的多通道在线检测仪.所谓的多通道,即可采用多种类型传感器,通过不同的搭配测量不同的气体成分.系统部分选用工业级芯片STM32F407作为检测仪信号分析和处理的核心,以新型数字式红外传感器S-Module作为主要的检测手段;此外,还通过智能化的手段,实现检测仪测量、记录一体化.通过测试,该气体检测仪具有稳定性好、测量精度高、抗干扰能力强的特点,可满足工业现场气体浓度检测的基本需求.%In view of the traditional gas analysis instruments working in low measurement precision, poor stability and single measurable components, this paper designs a multi-channel online detector used in industrial gas analysis. The multi channel makes people can use a variety of types of sensors, through different collocation, to measure the different gas composition. System part selects the industrial-grade STM32F407 chip as the core of the detector to analysis and process the signal ,with the new digital infrared sensor S-Module as the main means of detection. In addition, it can integrate the detection and recording by means of intelligent. The results show that the gas detector has the characteristics of good stability, high measurement precision and strong anti-interference ability, which can meet the basic requirements of industrial field gas concentration detection.
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