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Design of virtual power analyzer based on LabVIEW

Guan Zhen-hong

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Abstract

In this paper,a virtual power analyzer based on LabVIEW is designed by utilizing computer simulation,and the measurement and display of these parameter of sinusoidal voltage and sinusoidal current such as RMS,phase difference,power and instantaneous power are introduced.The sampled signal measurement principle of RMS,phase difference and power is also presented.It is veritified that the circuit design is simplified and the cost of measurement is reduced by using virtual instrument.Furthermore virtual instrument has more advantages than traditional instrument on intelligence,handling and easy operation.

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What this paper is about

In this paper,a virtual power analyzer based on LabVIEW is designed by utilizing computer simulation,and the measurement and display of these parameter of sinusoidal voltage and sinusoidal current such as RMS,phase difference,power and instantaneous power are introduced.The sampled signal measurement principle of RMS,phase difference and power is also presented.It is veritified that the circuit design is simplified and the cost of measurement is reduced by using virtual instrument.Furthermore virtual instrument has more advantages than traditional instrument on intelligence,handling and easy operation.

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Available abstract

In this paper,a virtual power analyzer based on LabVIEW is designed by utilizing computer simulation,and the measurement and display of these parameter of sinusoidal voltage and sinusoidal current such as RMS,phase difference,power and instantaneous power are introduced.The sampled signal measurement principle of RMS,phase difference and power is also presented.It is veritified that the circuit design is simplified and the cost of measurement is reduced by using virtual instrument.Furthermore virtual instrument has more advantages than traditional instrument on intelligence,handling and easy operation.

Key concepts: Spectrum analyzer, Power (physics), SIGNAL (programming language), Virtual instrument, Virtual instrumentation, Voltage, Computer science, Electronic engineering

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