以AT89S52为核心，对采集的模拟信号利用A/D转换为数字信号并送到单片机进行运算处理并通过显示电路显示结果。本系统具有自动轮流显示8个通道模拟信号的数值并可以通过按键切换通道的功能。-AT89S52 as the core in the acquisition of analog signals using A/D conversion and digital signal processing to carry out single-chip and the result will be displayed through the display circuit. Automatic rotation of the system show that 8-channel analog signal value and can function button to switch channels.