ABSTRACT
Virtual Instrument is different from the traditional instrument, the traditional instrument is defined and made by the manufacturer, having regular appearance and function. The fictitious instrument merges the resources of the computer hardware and instrument hardware as an organicwhole organically througn the software, thus con-bining computer strong computing ability, measurement of the instrument hardware, control ability together, have lowered the costand size of the hardware of the instument greatly, and realized the display and storage of the data and analysed and processed the data through the softwar.
Analysis of the traditional peak voltage meter, the average voltage meter and RMS voltage meter circuit and the use of inconvenience, made use of virtual instruments at the same time three kinds of voltage table showing the programme. Description of the virtual instrument software platform LabVIEW characteristics, based on LabVIEW virtual voltage meter design and implementation of a detailed discussion and design of the virtual voltage meter run of results, verify the design of virtual voltage method.
Also analyzed the peak Ammeter, average and RMS Ammeter Ammeter the circuit and the use of inconvenience, made use of virtual instruments at the same time indicated Ammeter three kinds of programmes. Based on a Ammeters LabVIEW virtual design and implementation of a detailed discussion, design and operation of virtual Ammeter results of analysis, virtual Ammeter design verification method.
Keywords: Virtual Instrument , Virtual Voltage Meter, Virtual Ammeter, LabVIEW