多种软件实现非NI设备的数据采集及处理

Data Acquisition and Procession at LabVIEW Platform Mixed with MATLAB and C

在数字测控系统和虚拟仪器开发中,利用虚拟仪器编程语言LabVIEW所提供的C IN节点工具,引入C源代码对非NI设备进行端口访问、实时信号采集和基于MATLAB的数据可视化信号处理的方法,实现LabVIEW与C结合进行数据采集,以及LabVIEW与MATLAB结合对所采数据进行频谱分析,得到其功率谱图。

LabVIEW,based on Graphic Language,is a kind of opening platform and developing tool about Virtual Instruments （VI）. At such platform, user can use functions of CIN and MATLAB Script to extend the icon function in LabVIEW. In this article, the author introduces how to use the method above to drive the non - NI - data - ac- quired- card and how to process the acquired data, realize acquiring data based on LabVIEW and C, and analyse acquired - data in frequency - domain.