Comparisons of the Josephson voltage standard of the BIPM with those of the KRISS, the MSL and the NML

摘要

Comparisons of the 1 V Josephson array voltage standard of the Bureau International des Poids et Mesures (BIPM) were made with those of the Korea Research Institute of Standards and Science (KRISS), Taejon, Korea, in January 1995, the Measurement Standards Laboratory of the New Zealand Institute for Industrial Research and Development (MSL), Lower Hutt, New Zealand, in March 1995, and the National Measurement Laboratory (NML/CSIRO), Sydney, Australia, in April 1995. The results agree within an overall uncertainty of less than 1 nV.