对于毕业论文范文

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1、对于毕业论文范文对于毕业论文范文_导读：................................................-83硬件电路的设计...................................................-103.1芯片选型.....................................................-103.1.1单片机AT89C51性能介绍.................................-103.1.2超声波接收芯片CX20106A性超​声​波​测&#

2、8203;距​系​统目录目录.................................................................-0摘要................................................................-1Abstract.............................................................-21绪论..............................................................-

3、31.1超声波测距概述................................................-31.2设计任务和功能要求............................................-32超声波测距原理....................................................-52.1超声波的基础知识..............................................-52.1.1超声波的波型及其传播速度.................................-52.1.2超

4、声波的反射和折射......................................-62.1.3声波的衰减..............................................-72.2超声波发生器..................................................-72.3压电式超声波发生器原理........................................-82.4超声波测距原理................................................-83硬件电路的设计.......

5、............................................-103.1芯片选型.....................................................-103.1.1单片机AT89C51性能介绍.................................-103.1.2超声波接收芯片CX20106A性能介绍5678910对于毕业论文范文_(2)导读：.............................5678910........................-133.2超声波测距系统框架图...........

6、..............................-153.3系统硬件电路的设计...........................................-163.3.1单片机系统及显示电路...................................-163.3.2超声波发射电路.........................................-173.3.3超声波检测电路.........................................-184系统软件设计...................................

7、..................-204.1主程序设计...................................................-204.2超声波发射子程序和超声波接收中断程序.........................-214.3LED动态显示程序.............................................-215系统调试及误差分析..........