2011•Unpublished venueRequires access

Approach to a multi-function virtual instrument based on LabVIEW

Xin Zhang

Abstract

A method to construct a virtual instrument with sound card and relevant software is proposed.Based on the integrated development environment of LabVIEW,The construction is designed.By means of this method,some virtual software work to control the A/D function of the recording port of a computer sound card,thus,the virtual instrument is enabled to accomplish the task of signal acquisition and data recording.It can be shown that,this virtual instrument can works as a virtual oscilloscope,a digital filter,and a signal generator.Besides,as a civilian sound card is very cheap,the proposed method is economical.

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Key concepts: Oscilloscope, Computer science, Sound card, Software, Computer hardware, Virtual instrument, Virtual instrumentation, Data acquisition