Title :
Comparison of three accurate methods to measure AC voltage at low frequencies
Author :
Kampik, M. ; Laiz, H. ; Klonz, M.
Author_Institution :
Silesian Tech. Univ., Gliwice, Poland
Abstract :
Three methods for the determination of the RMS value of AC voltage at low frequencies are compared: the step calibration of a digitally synthesized source, the optimized sampling method, and the AC-DC voltage transfer with a multifunction thermal converter. The three methods agree within 1×10-6 with an uncertainty of 2.5×10-6 in the frequency range from 10 Hz to 100 Hz
Keywords :
calibration; computerised instrumentation; harmonics; measurement uncertainty; signal sampling; voltage measurement; 10 to 100 Hz; AC voltage measurement; AC-DC voltage transfer; LF voltage measurement; RMS value determination; accurate methods; digitally synthesized source; low frequencies; multifunction thermal converter; optimized sampling method; step calibration; Analog-digital conversion; Calibration; Digital-to-frequency converters; Frequency conversion; Frequency synthesizers; Low voltage; Optimization methods; Sampling methods; Uncertainty; Voltage measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Conference_Location :
Venice
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.776053
