基于LabVIEW的虚拟示波器设计与实现

he virtual instrument is the hot spot in the development of instrument. This article exhaustively describe the design method and the process based on the LabVIEW of the virtual oscilloscope.This oscilloscope mainly by external collection system and the analysis processing system composition. And, the external collection system including signal regulating electric circuit and the data acquisition card , the analysis processing system mainly including software based on the LabVIEW. This virtual oscilloscope has two group simulation quantity gathering channels, can realize the functions such as port select, data acquisition, data storage and playbacking, spectral analysis and waveform parameter survey, and has the interactive friendly contact surface.