这是一个关于数字交流电压表的设计方案，详细介绍了硬件及软件设计-This is a study on digital AC voltage meter design, detailed hardware and software design

智能万用表设计,能够精确的测量直流电压、交流电压和电阻。测量精度高、抗干扰能力强-Smart meter designed to accurately measure the DC voltage, AC voltage and resistance. High accuracy, strong anti

硬件电路调试及分析技术，其中包括对万用表、示波器的使用，还介绍了对半导体等器件的检测及对分贝、交流电压 电流的测量方法等-Hardware circuit debugging and analysis techniques, including multimeters, oscilloscopes use, also describes the testing of semiconductor devices and for dB, AC voltage and current measurem

本报告介绍了基于AT89S52单片机为核心的、以AD0809数模转换芯片采样、以1602液晶屏显示的具有电压测量功能的具有一定精度的数字电压表。在实现基础功能要求之上扩展了串口通讯、时钟功能、高压报警、短路测试、电阻测量、交流电压峰峰值和周期测试等功能，使系统达到了良好的设计效果和要求。- This report describes on AT89S52 microcontroller as the core, to AD0809 DAC chip sampling, digital vol