矿灯式甲烷测报仪设计  

Design of Portable Methane Detection Alarm

作　　者：闫一功[1] 张磊[2] 

机构地区：[1]长春工业大学基础科学学院,吉林长春130012 [2]长春工业大学计算机科学与工程学院,吉林长春130012

出　　处：《煤矿安全》2008年第9期13-16,共4页Safety in Coal Mines

摘　　要：给出了一种能够在0—4％浓度范围内对环境中的甲烷浓度进行检测报警的低成本便携式甲烷测报装置的设计。装置采用三维数表的方法逐点修正、补偿甲烷传感器零点、灵敏度系数随温度的变化。采用LCD显示检测值，灯光声响闪烁方式报警。测试结果表明，甲烷气体浓度测量误差小于±0．1％。装置与矿灯结合，可构成便携式甲烷测报型矿灯，应用于井下照明和甲烷测报。The device can be used to detect the CH4 concentration at 0 -4%. A new algorithm based on the three -dimensional data table was developed, which was used to correct the output offset and sensitivity coefficient drift of CH4 sensor. The CH4 concentration is displayed by a LCD, and danger is warned by means of a sound or LED of miner＇s lamp. The test results show the basic error less than ＋ 0.1% CH4. Designed for the miner＇s lamp, the device provides a cost - effective answer for lighting and CH4 detection alarm in mine.

关 键 词：甲烷检测 矿灯 MAP图 微处理器 灵敏度系数 

分 类 号：TD712.55[矿业工程—矿井通风与安全]