| 一种新型中小型煤矿瓦斯浓度检测装置 |
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| 引用本文： | 肖思文,宾光富,魏兴.一种新型中小型煤矿瓦斯浓度检测装置[J].煤炭科学技术,2008,36(11). |
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| 作者姓名： | 肖思文 宾光富 魏兴 |
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| 作者单位： | 湖南科技大学湖南省机械设备健康维护重点实验室;湘潭联创煤机有限公司; |
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| 基金项目： | 国家安全生产监督管理总局科技发展计划资助项目，湖南省科技计划资助项目 |
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| 摘 要： | 为了减少我国中小型煤矿因瓦斯爆炸而引发的灾难事故,利用以SnO2为主要基体材料的N型半导体气敏传感元件对甲烷等易燃易爆气体具有良好的敏感特性,采用QM-N5型半导体气敏传感器,检测该传感器在不同瓦斯浓度下输出电阻值的变化,并设计了以AT89C51数字芯片为核心的电路处理硬件结构,对输入电阻值进行逻辑判断和分析,从而实现对瓦斯浓度超限的监控与报警.试验测试表明,该新型监测装置采用模块化程序结构设计方法,具有结构简单、检测精度高、响应速度快、性能稳定、成本价低等优点,可广泛适用于我国中小型煤矿瓦斯浓度的监测与预警.
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| 关 键 词： | 瓦斯浓度检测 半导体气敏传感器 中小型煤矿 单片机 |
New gas concentration detection device for small and medium coal mines |
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| XIAO Si-wen,BIN Guang-fu,WEI Xing.New gas concentration detection device for small and medium coal mines[J].Coal Science and Technology,2008,36(11). |
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| Authors: | XIAO Si-wen BIN Guang-fu WEI Xing |
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| Affiliation: | XIAO Si-wen1,BIN Guang-fu1,WEI Xing2(1.Hunan Provincial Key Lab of Mechanical Equipment Health Maintenance,Hunan University of Science , Technology,Xiangtan 411201,China,2.Xiangtan Lianchuang Coal Machinery Company Ltd.,Xiangtan 411104,China) |
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| Abstract: | In order to reduce the disaster accidents occurred by the gas explosion in small and medium mines in China,the N type semiconductor gas sensor with SnO2 as the main basic material had an excellent sensitive feature of the methane and other easy combusted and easy explosive gas.The QM-N5 type semiconductor gas sensor could be applied to detect the variation of the output resistance value under the different gas content.The paper had a design on the circuit treatment hardware structure with AT89C51 digital ch... |
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| Keywords: | gas contraction detection semiconductor gas sensor small and medium coal mines single-chip micro-processor |
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