| 基于非分散红外(NDIR)原理的煤矿甲烷检测仪 |
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| 引用本文： | 刘敏,唐祯安,张洪泉.基于非分散红外(NDIR)原理的煤矿甲烷检测仪[J].仪表技术与传感器,2007(3):18-20. |
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| 作者姓名： | 刘敏 唐祯安 张洪泉 |
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| 作者单位： | 1. 大连理工大学电子系,辽宁大连,116023
2. 中国电子科技集团第49研究所,黑龙江哈尔滨,150001 |
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| 摘 要： | 介绍了一种基于非分散红外(NDIR)原理的煤矿甲烷检测仪的总体设计。该检测仪使用进口红外检测元件,以新型电调制光源代替机械调制光源,实现了对煤矿井下大范围甲烷浓度的实时测量、液晶显示和超限声光报警等功能,并把甲烷浓度值转化为与煤矿其他设备兼容的4~20 mA标准模拟电信号,最后给出该检测仪在甲烷体积分数为0~10%的测量结果。
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| 关 键 词： | 电调制 甲烷检测仪 |
| 文章编号： | 1002-1841（2007）03-0018-03 |
| 修稿时间： | 2006-07-19 |
Coal Mine Methane Detector Based on NDIR Principle |
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| LIU Min,TANG Zhen-an,ZHANG Hong-quan.Coal Mine Methane Detector Based on NDIR Principle[J].Instrument Technique and Sensor,2007(3):18-20. |
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| Authors: | LIU Min TANG Zhen-an ZHANG Hong-quan |
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| Affiliation: | 1.Dept.of Electronic,Dalian University of Tchnology,Dalian 116023; 2.NO.49 Research Institution of CECT,Herbin 150001,China |
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| Abstract: | Introduces the general design of coal mine methane detetor which is based on Non-Dispersive Infrared(NDIR) principle.Using an imported infared element,with the news-style electric modulation light source instead of conventional mechanical modulation light source,the detector actualized realtime measurement,LCD display and limit-alarm with lignt and sound for large range methane below the coal mine,also,the detector converts the information of gas concentration to 4-20mA normal analog signal which is compatible with other equipment in the coal mine.Finally,the paper presents measurement results of methane concentration at 0-10%. |
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| Keywords: | NDIR |
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