Calculable AC Voltage Standards for 10 kHz-1 MHz Frequency Range

This paper describes two calculable thermal ac voltage standards developed at the Silesian University of Technology in Gliwice, Poland. The design and mathematical model of these standards made calculation of their ac-dc transfer differences with very low uncertainty possible, comparable to the uncertainty of the best available calculable ac voltage standards in the 10 kHz-1 MHz frequency range. The correctness of the results of the ac-dc transfer difference calculation was also confirmed experimentally.