摘要
介绍了以图形化编程语言LabVIEW为软件开发平台,通过数据采集卡和PC为硬件支撑,构建信号的采集和分析的虚拟仪器系统,该系统不仅实现了实时波形显示、电压有效值、信号频率等参数的计算,还将虚拟仪器技术运用到频谱分析中来,增强了仪器的功能,缩短了仪器的开发时间。
This article introduced the virtual spectrum analysis instrument, it takes figure programming language LabVIEW as the software developing platform and regards the data collecting card and computer as the hardware. It can reveal corrugated figure real - time and calculate voltage virtual value, signal frequency and so on. The system apply the technology of the virtual instrument to spectnan analysis and enhance the function of instruction and short the developing time of instrument.
