SIM key comparison of 10 mH inductance standards

A key comparison of 10 mH inductance standards at 1 kHz has been carried out with the participation of seven National Metrology Institutes (NMI's) of the Inter-American Metrology System (SIM), within the frame of the International Committee for Weights and Measures Mutual Recognition Arrangement (MRA), which was piloted by CENAM, Mexico. Three previously characterized commercial inductors, contained in individual enclosures with controlled temperature were used as traveling standards. This paper presents the results and technical details of the comparison.