红外甲烷气体浓度检测仪设计

Design of Infrared Methane Gas Concentration Detector

甲烷气体是煤矿瓦斯气体的主要成分,近年来我国因瓦斯爆炸而导致的事故占总煤矿安全事故的比重越来越大,这使得矿下甲烷气体的监测成为我们面临的重要问题。本文对于目前常用的气体浓度检测方法做了简要概述,利用红外吸收检测原理,结合现代检测设备和数据处理方法基于STC12C5A60S2单片机处理系统,设计了一款便携式、有声光报警功能的甲烷气体浓度检测仪。该检测仪具有体积小、响应速度快、性能稳定等优点。

Methane is the main components of the coal gas, the proportion of the gas explosion accident in the total of coal mine safety accidents has increasingly in recent years of our country. The methane gas detection under the mine becomes a faced important issue. This paper gives a brief interview of the frequently-used gas detection methods and uses infrared absorption detection theory combined modem detection equipment and data processing method, based on the STC12C5A60S2 processing system a portable methane gas concentration detector with audible and visual alarm function is designed. The detector has the advantage of small volume, fast response and stable performance, etc.