本文设计的用单片微机控制的甲烷浓度报警监控仪，是采用热催化原理(俗称黑白元件)探头制成的甲烷浓度测量仪，适用于中小型煤矿井下各作业场所中测量空气中的甲烷浓度。基于单片机控制的甲烷浓度监控报警仪。,In this paper, the design of computer control using a single concentration of the methane monitor alarm is hot catalytic principle (commonly known as black and white components) probe into the methane concentration measuring instrument, applicable to small and medium-sized coal mine in the measurement of workplace air concentration of methane. Based on single-chip control Alarm monitoring the concentration of methane.