基于STM32的高精度数字电压表设计  

TheD esign of High-precision Digital Voltage Meter Based on The STM32

作　　者：王淼军[1] 韦海成[1] 魏鑫[1] 

机构地区：[1]北方民族大学电气与信息工程学院,宁夏银川750021

出　　处：《自动化与仪器仪表》2016年第3期26-28,共3页Automation & Instrumentation

基　　金：宁夏自然科学基金重点项目(NZ13083);2015年度北方民族大学基本科研项目(2015JBK361)

摘　　要：针对传统数字电压表分辨率低的问题,本文以STM32为控制芯片,结合TFT-LCD显示屏,设计了一款高精度的数字电压表,分辨率可达0.8m V。此外加入报警电路,当测量电压超过数字电压表量程时,可进行报警提示。经试验验证,此数字电压表可完成对0~3V电压的精确测量,在电子测量领域具有很好的实际应用价值。Aiming at the problem of low resolution of traditional digital voltage meter, this paper designs a high precision digital voltmeter,based on the STM32 as control chip,combining with TFT-LCD display,the resolution can reach 0.0008 V.In addition,the alarm circuit carried out alarm prompt when measure the voltage more than digital voltage meter range.It has been verified by experiment that this digital voltage meter can be completed for the precise measurement of the 0 ~3V voltage,has the very good application value in the field of electronic measurement.

关 键 词：STM32 高精度 电压表 

分 类 号：TM933.22[电气工程—电力电子与电力传动]