Validation of 4TP Impedance Bridge Developed at GUM

Marian Kampik, Krzysztof Musioł (), Adam Ziółek, Jolanta Jursza and Maciej Koszarny
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Marian Kampik: Department of Measurement Science, Electronics and Control, Silesian University of Technology, 44-100 Gliwice, Poland
Krzysztof Musioł: Department of Measurement Science, Electronics and Control, Silesian University of Technology, 44-100 Gliwice, Poland
Adam Ziółek: Electricity and Radiation Department, Central Office of Measures, 00-139 Warszawa, Poland
Jolanta Jursza: Electricity and Radiation Department, Central Office of Measures, 00-139 Warszawa, Poland
Maciej Koszarny: Electricity and Radiation Department, Central Office of Measures, 00-139 Warszawa, Poland

Energies, 2025, vol. 18, issue 21, 1-13

Abstract: Impedance methods are gaining importance each year and have recently become an essential tool for diagnosing batteries, capacitors, and fuel cells. In this article we present the results of validating the digital impedance bridge developed by the National Metrology Institute (GUM) in Warsaw, Poland. The comparison involved new impedance standards recently developed by GUM and the Silesian University of Technology (SUT), as well as standards developed by the Swiss National Metrology Institute (METAS). The comparison of the standard resistors and capacitors demonstrated agreement between the measurement results obtained with the Polish and Swiss sampling bridges, with a deviation of 5 µΩ/Ω in the frequency range from 500 Hz to 5 kHz.

Keywords: calibration; impedance comparison; impedance standards; National Metrology Institute; sampling bridge (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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