摘要
基于声卡的数据采集系统已广泛应用于工程测试与教学实践领域,适用于采集音频信号范围内的物理信号。本文从硬件和软件角度系统地总结该系统的开发技术,包括控制器与声卡接口、声卡性能指标等硬件技术,以及采集软件开发方法,并给出基于图形化编程语言LabVIEW开发的声卡数据采集系统实例。最后指出该系统的可行性和局限性,为测试领域开发人员提供参考。
Data acquisition system based on sound card is widely used in engineering measurement and teaching implementation area,which is suitable for collecting pyisical signal within the scope of audio frequency.This paper smmarizes development techology of this system in hardware and software sides,including the interface between controller and sound card,characters of sound card and the methods of software development techology on system.A example for data acquition system based on sound card is given in graphic-programming language LabVIEW.The feasibility and limitations of system is referred,which provide reference to engineer in measurement area.
出处
《计算机与现代化》
2010年第7期159-161,165,共4页
Computer and Modernization
