摘要
介绍了一种由 AT89C5 1单片机控制的快速数据采集系统 ,它是以一个采用 1 2位 A/D转换器产品—— MAX1 2 0的实际电路 .分析了这个系统的构成和工作原理 ,它的特点在于数据采样频率完全可以不受微处理器运行速度的影响 ,仅仅取决于所选用的 A/D转换芯片的速度 .应用其原理可以实现高速数据采集 。
A high-speed data acquisition system controlled by AT89c51 single-chip computer is presented. And it is an applied circuit with MAX120 which is a new kind of 12 bits A/D converter. The working principles of the system are analyzed in detail and a set of hardware circuit is designed. In addition, its higher sampling frequency is adaptive that is not influenced by single-chip computer, and its sampling frequency only lies on which kinds of A/D converter is selected. So it may implement higher speed data acquisition and solve some applied problem in project.
出处
《武汉理工大学学报（交通科学与工程版）》
北大核心
2004年第3期471-474,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
关键词
数据采集
A/D转换
快速数据存储
data acquisition
A/D converter
high speed data access
