人体红外线感应报警器应用电子毕业设计论文

编号 毕业论文

题 目

学生姓名学 号系 部专 业班 级指导教师顾问教师人体红外线感应报警器

电子工程系 应用电子技术

【姓名】 【专业技术职务】

2012年九月

I

摘 要

摘要

该报警器能探测人体发出的红外线，由红外线传感器、信号放大电路、电压比较器、延时电路和音响报警电路等组成。当人进入报警器的监视区域内，即可发出报警声，适用于家庭、办公室、仓库、实验室等比较重要场合防盗报警。概述了红外辐射的知识、热释电红外传感器的结构和工作原理。利用热释电红外传感器设计了一种被动式红外报警电路,分析了该电路的功能和工作原理。热释电红外传感器具有很多的优点,在防盗、警戒等装置中应用。 关键词：红外线 热释电效应 菲涅尔透镜

II

第一章 绪论

目 录

摘要··········································· 目录··········································· 第一章：绪论··········································· 1.1 设计概述··········································· 1.2 设计背景··········································· 1.3 设计要求··········································· 1.4 设计意义··········································· 第二章：方案设计与研究··········································· 2.1 设计过程··········································· 2.2 方案选定··········································· 第三章：红外线传感器的概述··········································· 3.1 红外线传感器··········································· 3.2 红外线传感器的特点··········································· 3.3 主要特性··········································· 第四章：LM358芯片··········································· 4.1 LM358概述··········································· 4.2 芯片特点··········································· 4.3 电气特性··········································· 4.4 典型电路··········································· 第五章：LM393芯片··· …… 此处隐藏：4783字，全部文档内容请下载后查看。喜欢就下载吧 ……