Design of virtual digtal oscilloscope based on LabVIEW and sound card
This paper introduces a progcess of a virtual digital oscilloscope which is based on G language of LabVIEW and sound card instead of professional data acquisition card.This article focuses on the disome function modules of the oscilloscope,such as data acquisition,trigger control,time base and amplitude control,the measurement of the phase,frequency and peak to peak,measurement waveform save and playback function modules.