数据采集系统设计需要考虑的问题

The Consideration for Data Acquisition System Design

设计高性能的数据采集系统，需要对系统的每一部分都要周密考虑、精心设计，否则难以实现设计目标。文章首先给出了数据采集系统设计中应考虑的问题，并针对这些问题，从信号源开始到信号的调理、直至多路信号选择、数字化器件及其与微计算机接口，最后到计算机及其软件，即从数据采集系统始端到末端逐个环节进行问题分析，根据分析结果以及经验给出解决问题的实用技术。文中给出的技术与方法适用于各种数据采集系统的设计与分析。

In the high performance data acquisition systern development, the part design is verycritical and must be given a special consideration for successful completion. This article presented the questions in system design by analyzing fromsignal sources, signal processing , multi -signal selection, dizitalizing devices interfacing with PCs, to computer and its software. The useful technicswere presented here to solute these tluestions based on the analysingand the practices.The technics and methods discussed in this paper canbe applied to any data acquisition system design and analysis.