【摘要】 近年来受到国民经济快速发展的推动,煤矿的开采量和消费量呈现快速增长的势头,同时很多煤矿企业存在着安全监测不完善等煤矿安全问题,严重影响了煤矿的开采和人员的安全,其中瓦斯监控是煤矿安全中的重要组成部分。介绍了一种基于非分光红外原理的瓦斯传感器的工作原理,同时阐述了压力补偿的必要性,然后基于最新的单光源双通道甲烷传感器进行分析,介绍了一种压力补偿方法,基本克服了压力的漂移问题,提高了测量的准确性。更多还原

【Abstract】 In recent years,the rapid development of national economy improves the production and consumption of coal mine.At the same time,there are lots of security issues which seriously affected the coal mining and personnel safety.In the safety monitoring,methane measurement is the most important.This paper describes the principle of methane transducer based on non-dispersive infrared and the necessity about pressure compensation.Using methane sensor which based on dual-channel and single source,describe the method of it,basically overcome the problem of temperature pressure drift,increase the measurement accuracy.更多还原