Final report: EURAMET.EM-S39

Abstract

The AC-DC difference of a set of current shunts produced by the Norwegian Metrology Service (Justervesenet), were measured by PTB and Justervesenet, in a bilateral comparison, where Justervesenet acted as the organizer and pilot laboratory. The nominal values of the current shunts are 30 mA, 100 mA, 300 mA, 1 A, 3 A, 5 A, 10 A and 20 A, which were measured at their nominal values for the frequencies 10 Hz, 20 Hz, 55 Hz, 110 Hz, 400 Hz, 1 kHz, 5 kHz, 10 kHz, 20 kHz, 50 kHz and 100 kHz. All current shunts were measured in combination with Planar Multi-junction Thermal Converters produced by PTB.The results show that there is a degree of equivalence within 0.4 for all measured values, and that for frequencies below 10 kHz, the value is typically below 0.2. Hence, there is a very close agreement between the measurements, which are not correlated by traceability chains, and the properties of the current shunts have been documented by the comparison. Main text.To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.The final report has been peer-reviewed and approved for publication by the CCEM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).