Faculty of Technical Sciences, University of Novi Sad
Dr. Marjan Urekar
Phase measurement method based on timer modules
ABSTRACT
This research outlines a phase measurement method employing timer modules and presents the implementation of the corresponding measurement system. The primary motivation for this research stems from the need for precise and accurate measurement of the phase difference between voltage and current signals from a dual-channel source when phase degradation occurs in the output stage. To determine the deviation between the measured and actual phase angles of voltage and current at the output of a dual-channel source, phase measurement is achieved using timer modules. This method necessitates the conversion of relatively high voltage and current signals into periodic rectangular waves compatible with timer modules, and this conversion is facilitated by comparators. Despite the exceptional performance of timer-based approaches in measuring time intervals, their application in phase measurement is infrequent due to several significant challenges encountered during the conversion of analog signals to digital signals, including the influence of noise present in analog signals, comparator offsets, and asymmetric low-pass filters designed for noise reduction, therefore, the paper proposes a measurement system that provides solutions to the encountered problems.
Кључне речи: phase measurement, time measurement, timer modules, microcontroller, dual-channel source
Biography of the presenter
Born in 1975 in Novi Sad, SFRJ. He completed his undergraduate, master’s and doctoral studies at FTN Novi Sad. From 1996 to 2007, he worked as an industrial engineer in the SRJ, SCG and Serbia. Since 2007, employed at the Faculty of Technical Sciences in Novi Sad, Department of Power, Electronic and Telecommunication Engineering. Currently in the title of associate professor. Scientific research area: Electrical measurements, metrology and biomedicine.
Areas of study: Industry 4.0, electrical measurements, metrology, analog electronics, laboratory instrumentation and measurement, calibration, process engineering, audio technology, electronic device and PCB design, stochastic processes, industrial electronic devices and measurement systems, biomedical instrumentation, standards and standardization, reliability of work, military technologies, education for engineers, critical thinking for engineers, maintenance of legacy electronic technologies and systems.
Member of IEEE, Society for ETRAN, Matica Srpska, Committee for Standards and Related Documents KS N085 of the Institute for Standardization of Serbia. Reviewer for IEEE, Elsevier, IMEKO, Measurement and Information Technologies MIT, Congress of Metrologists, INDEL, (Ic)ETRAN.
Quality Manager of the Metrology Laboratory, Center for Metrology, FTN Novi Sad.
Author and co-author of over 200 scientific papers and technological solutions.
Certified auditor and leading auditor for standards: ISO 9001, ISO 14001, ISO 50001, ISO 45001, ISO 27001, ISO 17025.
Head of master study programs Measurement and regulation and Measurement and information systems at FTN.
