论文部分内容阅读
实现工业自动化一般都有模拟量的采集问题,在使用微型计算机控制后,正确地进行信息的控制、传送和处理,将大大有利于整个系统性能的提高.相反,如果考虑不周,则可能危及系统的正常工作.本文讨论几个比较重要但又容易被忽视的问题,供有关人员在设计这类系统时参考. 一、系统结构配置 (一)标准形式图1是数据采集系统标准配置的原理图.各传感器依次把从工艺现场检测得到的各种模拟型参量通过通道送到模数变换器A/D进行变换.再由微机系统
To achieve industrial automation generally have analog acquisition problems, the use of microcomputer control, the correct control of information, transmission and processing, will greatly benefit the overall system performance. On the contrary, if not considered, it may endanger The normal work of the system.This article discusses several more important but easily overlooked issues for the relevant personnel in the design of such systems reference.First, the system configuration (a) the standard form Figure 1 is the principle of data acquisition system standard configuration Figure. Each sensor in turn from the process of testing the various analog parameters obtained through the channel sent to the analog-to-digital converter A / D conversion. And then the microcomputer system