Title :
Digital flickermeter implementation
Author :
de Sousa Rocha, J.P. ; Deckmann, S.M.
Author_Institution :
DSCE, UNICAMP, Campinas, Brazil
Abstract :
This paper describes some problems encountered while converting the analog methodology for flicker measurements, internationally recommended, into a digital processing device. The main points considered are: filter conversion method, A/D precision compromises, minimization of sampling frequency, real-time calculation procedures and interfacing with IBM-PC microcomputers through a standard Centronics parallel port
Keywords :
computerised instrumentation; current fluctuations; digital instrumentation; power system measurement; A/D precision; Centronics parallel port; digital flickermeter; digital processing; filter conversion method; flicker measurements; real-time calculation procedures; sampling frequency; voltage fluctuations; Demodulation; Digital filters; Filtering; Frequency measurement; Furnaces; Lamps; Low pass filters; Microcomputers; Signal processing; Voltage fluctuations;
Conference_Titel :
Circuits and Systems, 1995., Proceedings., Proceedings of the 38th Midwest Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2972-4
DOI :
10.1109/MWSCAS.1995.510199
