Comparison of the Josephson voltage standards of the NIM (China) and the BIPM

摘要

Comparisons of the 1 V Josephson array voltage standard of the Bureau International des Poids et Mesures (BIPM) were made with that of the National Institute of Metrology (NIM), Beijing, China, in November 1995. The results agree within an overall uncertainty of less than 1 nV.