Design of virtual oscilloscope based on GPIB interface and SCPI

A design of virtual oscilloscope is proposed, which uses the technology of GPIB interface and SCPI (Standard Commands for Programmable Instruments) on the LabVIEW platform. It has the functions of waveform display, parameter measurement and data storage. As far as the oscilloscope involving the GPIB interface, the VISA technology in LabVIEW is adopted to programming. And virtual oscilloscope has the function of real-time data acquisition, display and storage without extra data collecting card in PC. It was proved that the design has the characteristics of reliable operation, flexible extensions and has practical value in automatic test areas.