Comparison of Thermal Converters Maintained at SUT and CMI

The article reports the outcomes of a bilateral comparison utilizing an ac voltage standard featuring Physikalisch-Technische Bundesanstalt (PTB)/IPHT planar thin-film thermal converters (PMJTCs). The variation in ac-dc voltage transfer difference of the standards was assessed at 1 V, along with specific frequencies ranging from 10 Hz to 1 MHz, in relation to the primary thermal ac voltage standards maintained at the Silesian University of Technology (SUT) in Poland and the Czech Metrology Institute (CMI) in Czech Republic.