Abstract
In this paper there are presented a virtual instrument for frequency’s quality indexes surveillance. The virtual instrument is a application realised in Lab VIEW 3.1, and data is collected through a PC-LPM-16 acquisition board. The program has two main components: one for frequency measurement and one for frequency’s quality indexes calculus. The nominal frequency is fixed by operator on the front panel of the virtual instrument. The precision of measurement is better then 1%.
Cuvinte cheie
virtual instrument
data acquisition
frequency measurement
energy quality.