Abstract
Harmonic analysis of periodic signal is a major importance for determining the energy quality. This paper, presents a virtual apparatus for frequency analysis of periodic signals. The virtual apparatus use a NI 6221 DAQ module to acquire the periodic signal. The soft for the virtual apparatus is realized in LabView programming medium. The panel and diagram windows of apparatus are presented.
Cuvinte cheie
data acquisition
LabView
frequency analysis
virtual apparatus.