多路燃气报警电路设计.doc

沈阳航空航天大学 本科毕业设计论文 姓 名 学 号 院 系 专 业 2010 年 6月 院 系 专 业 班 级 学 号 姓 名 指导教师 负责教师 沈阳航空 2010年6月摘 要 上体积小，重量轻，引出线和焊接点少，寿命长，可靠性高，性能好等优点，同时成本低，便于大规模生产， 关键词：；； Abstract Modern idustrial production, daily life to the requirement of safety. But in production and life, the combustible gas leakage accidents caused by the situation. Application of alarm circuit can achieve security alarm, ensure production and safety. Circuit design will be used many electronic components and circuits in the gas leak detection, choose the sensor. Integrated circuits and sensor, which will give the future industrial production progress and stable ensure provide convenient. Integrated circuit has a small volume, light weight, lead and welding, long service life, high reliability, performance, and the advantages of low cost, easy to large-scale production, Sensor has good sensitivity, the characteristics of high resolution. This thesis mainly for separation electronic components, integrated circuit, and expounds the application of sensor alarm circuit design and analysis. Graduation design should use draw circuit PROTEL software. The research on the convenience of intuitive circuit principle, on the other hand in a circuit of overlapped and debugging process can be simulated. Graduation design multi-channel gas alarm circuit, reached to reveal the gas sensor, alarm, this circuit for safety production meets the requirement. High sensitivity, stability and good flexible circuit, the advantages of compact and reliable and easy operation visual alarm. Key words: Integrated circuits； Sensors； alarms 目 录 第1章 绪 论 1 1.1燃气报警电路与煤矿安全生产 1 1.2本文研究的主要内容 2 1.2.1 燃气报警电路的核心部件 2 第2章 多路燃气报警电路的方案设计 5 2.1方案一的设计与分析 5 2.2 方案二的设计与分析 7 2.3 方案三的设计与分析 9 2.4方案的选定 11 2.5 Protel软件介绍 11 2.6本章小结 12 第3章 元器件的选定与介绍 14 3.1 传感器 14 3.1.1 方案中选定的传感器介绍 15 3.2 集成电路 18 3.2.1 集成电路的分类介绍 18 3.2.2 方案中选定的集成电路介绍 20 3.3 其他元器件的介绍 25 3.4本章小结 31 第4章 硬件电路的搭接与