Preliminary comparison of a 10 V programmable Josephson voltage standard and a hysteretic Josephson voltage standard

摘要

A 10 V programmable Josephson voltage standard system has been installed at the National Research Council Canada. The current margins for the first Josephson step at either current polarity are greater than 1 mA. A preliminary direct comparison of this programmable system with a hysteretic Josephson voltage standard is performed at 10 V.