摘要
本文主要介绍了国内外虚拟仪器的现状及其在实际应用中存在的问题,并详细介绍了基于研华公司的数据采集卡PCL818-HG的虚拟仪器系统的设计,包括其构成、特点、功能,以及采用直接数字合成(DDS)技术合成任意波的方法。
This paper introduces the situation of internal and external VI and its defections in practical eng ineer application,discusses the desig n of VI system based on Advantech dig ital acquisition board -PCL818HG,in-cludes its config uration,characteristic,function and the method of forming arbitrary waveform with DDS.
出处
《工业控制计算机》
2002年第12期39-40,共2页
Industrial Control Computer
