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Research on Driver of General Data Acquisition Card Based on LabVIEW

Bajin Li

Abstract

Facing the problem that virtual instrumentation development software such as LabVIEW can only support its company′s card and can not support other company′s DAQ card,an important method of using an ordinary DAQ card in virtual instrumentation development software which is calling dynamic link library functions is studied.And from the examples,the key process and procedure of calling dynamic link library functions in LabVIEW is presented.It realizes the combination of LabVIEW and ordinary DAQ card.It proves that this method can avoid the complicated computer program,shorten software-developing time,save cost and increase the application agility.

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Key concepts: Data acquisition, Virtual instrumentation, Instrumentation (computer programming), Software, Computer hardware, Computer science, Virtual instrument, Key (lock)