Interlaboratory Comparisons of Calibration Results of the Measures of Electrical Resistance of Direct Current

Abstract

The article presents the results of the first round of inter-laboratory comparisons of the measures of electric resistance on a direct current of three resistance nominals: 1 Om, 10 Om and 100 Om. The reference laboratory has studied the measures of electrical resistance as a means of comparison, defined the reference values of comparison with the calculation of their extended uncertainties. The comparison of the results of measurements obtained during the calibration of the measures of electrical resistance of eight laboratories took place according to the radial scheme in 2016. The deviations of the results obtained by each laboratory were determined and their correctness was evaluated taking into account the uncertainty of measurements by one of the criteria for performance statistics for the selected electrical resistance ratings.

Keywords

• measure of electrical resistance, inter-laboratory comparisons, national metrology institute, measurement uncertainty, direct current