Vol.1, No 10, 2003 pp. 1355 - 1368
UDC 621.3.072.7
PHASE MEASUREMENT SYSTEM
BASED ON EMBEDDED MICROCOMPUTER
Branislav Petrović, Mile Stojčev
Faculty of Electronics, Niš
Abstract. Theoretical considerations concerning data domain transformation
implemented into a digital phase meter, as an embedded computer system,
are presented in this paper. Details related to a functional hardware structure
are given. The algorithms for autocalibration, coarse and fine phase shift
measurements are described. Experimental results indicate that for 14 bits
resolution and operating frequency range from 1 kHz up to 500 kHz the achieved
meter's accuracy is less than 0,025 degree.
SISTEM ZA MERENJE FAZNE RAZLIKE NA BAZI
UGRAĐENOG MIKRORAČUNARA
U ovom radu razmatrane su transformacije u oblasti domena podataka implementierane
na digitalni merač fazne razlike kao sistem sa ugrađenim mikroračunarom.
U radu je najpre razmatrana funkcionalna hardverska struktura sistema.
Nakon toga opisani su algoritmi za autokalibraciju i grubo i fino merenje
fazne razlike. Eksperimentalni rezultati pokazuju da je ostvarena 14 bitna
rezolucija u frekventnom opsegu od 1 kHz do 500 kHz i da je ostvarena
tačnost merenja bolja od 0,025 stepeni.
