毕业论文--简易数字电压表设计原理分析及功能实现.docVIP

摘 要 本文是基于单片机的数字电压表设计，将模拟电压量直接转换成数字量，用数码管来显示。首先，介绍了数字电压表的特点。其次，介绍了数字电压表的两种设计方案以及在该设计中设计方案和各元器件的选择，并对各元器件做了简单的介绍；然后对设计方案做了整体介绍，其基本原理是，模拟电压量经过A/D转换芯片转换成数字量，送入单片机进行处理。最后输出的数据在经过线路驱动器送入数码管显示电压大小。最后介绍了程序流程，并用KEIL和PROTUES联机调试进行仿真。调试完成之后进行硬件焊接，测试并进行行改进。 关键字：单片机；A/D转换；数码显示；数据处理；硬件焊接 Abstract This paper is the digital voltmeter design based on the single chip microcomputer , the simulation of voltage directly converted into digital quantity which is displayed by digital pipe .Firstly，It introduced the characteristics of the digital voltmeter , secondly , it recommended two design schemes and how to choice the design scheme and components in the design ,and also it introduced several components ; Fourthly, it is doing a complete design scheme introduction , its basic principle is that simulation voltage quantity converted into digital quantity after A/D conversion chip, and imported into single chip for processing. The last of the output data is displayed by digital tube after decode direct drive. Finally ,It introduced program designing with the assembly language , and did the online adjustment simulation using PROTUES and KEIL . After the commissioning , i welded ,tested and improved the hardware . Keywords: microcomputer; A/D conversion; displayed in number; data processing; hardware weld 目 录 TOC \o 1-3 \h \u HYPERLINK \l _Toc4912 1 数字电压表 PAGEREF _Toc4912 1 HYPERLINK \l _Toc20670 1.1 数字电压表简介 PAGEREF _Toc4912 1 HYPERLINK \l _Toc9093 1.2 数字电压表的优点 PAGEREF _Toc4912 1 HYPERLINK \l _Toc7308 1.3 数字电压表发展趋势 PAGEREF _Toc4912 1 HYPERLINK \l _Toc25171 1.4 设计平台 PAGEREF _Toc25171 2 HYPERLINK \l _Toc12190 1.4.1 KEIL C51开发平台 PAGEREF _Toc25171 2 HYPERLINK \l _Toc6219 1.4.2 PROTEL DXP 2004设计软件 PAGEREF _Toc6219 3 HYPERLINK \l _Toc10054 2 简易数字电压表设计简介 4 HYPERLINK \l _Toc12093 2.1 设计背景 4 HYPERLINK \l _Toc2262 2.2 设计意义 5 HYPERLINK \l _Toc14083 3 数字电压设计的两种方案 6 HYPERLINK \l _Toc3394 3.1 由数字电路及芯片构建 6 HYPERLINK \