多路数字电压表设计与仿真  

Design and Simulation of Multi-channel Digital Voltmeter

作　　者：陈峰[1] Chen Feng(Jiangsu Vocational College of Business,Nantong Jiangsu 226011,China)

机构地区：[1]江苏商贸职业学院,江苏南通226011

出　　处：《山西电子技术》2021年第4期51-53,61,共4页Shanxi Electronic Technology

摘　　要：电压是电量测量中最常见的被测量,为满足高精度、多路电压信号的测量要求,以单片机为核心设计了多路数字电压表。该系统通过单片机控制8通道模拟多路选择器进行电压测量通道切换,采用ADC0831模数转换芯片采集模拟电压信号,并在液晶上实时显示系统工作模式、当前测量的通道值和电压值。利用KEIL软件和Proteus软件对系统进行仿真调试,结果表明该系统能实现多路电压信号的准确测量和显示。该系统具有操作方便、测量精度高、扩展性强等优点。Voltage is the most common measurement in the measurement of electric quantity.In order to meet the requirements of high precision and multi-channel voltage signal measurement,a multi-channel digital voltmeter is designed with single chip microcomputer as the core.The system performs voltage measurement channel switching through single-chip computer control 8-channel analog multi-channel selector,collects analog voltage signal and displays system operating mode,current measured channel value and voltage value on the liquid crystal.KEIL software and Proteus software is used for the system debugging,and simulation results show that the system can realize multi-channel voltage signal accurately measure and display.The system has the advantages of easy operation,high measurement accuracy and strong expansibility.

关 键 词：单片机 ADC0831 数字电压表 74HC4051 1602液晶 仿真 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]