基于单片机控制的甲烷浓度控制设计

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1、目录第1章绪论·····················································11.1课题研究的必要性··················································11.2国内外研究水平和动向··············································11.3课题研究的总体解决方案············································2第2章智能仪器的研制、基本要求和思路···················

2、·········32.1智能仪器的研制····················································32.2智能仪器设计的基本要求············································32.3课题研究的总体思路················································3第3章瓦斯报警器的总体设计方案··································53.1概述第25页共26页·······················

3、·······································53.2总体设计方案······················································53.3总体分析··························································5第4章硬件电路设计··············································64.1核心器件8031单片机·······································

4、········64.2敏感元件··························································84.2.1热催化元件的结构·········································84.2.2敏感元件工作原理·········································84.3小信号放大电路····················································94.4A/D转换电路·····················

5、·································114.4.1ADC0809的主要特性······································114.4.2ADC0809芯片的引脚图及引脚功能··························124.4.3ADC0809与8031单片机的接口设计·························13第25页共26页4.5看门狗电路·······················································144.6报警电路····

6、·····················································164.7显示电路·························································164.7.1CD4511简介·············································164.7.274LS377简介············································174.8电源部分·······························

7、···························184.9总体硬件原理图：···················································19第5章结束语···················································20参考文献························································21附录1··························································22第1

8、章绪论1.1课题研究的必要性第25页共26页从我国煤炭生产的现状及我国能源结构规划均可看出，在