A compact comparison standard based on the Josephson effect with an output voltage of 10 V

A compact comparison standard in the form of a voltage measure based on the Josephson effect with an output voltage of 10 V is developed. The purpose of the standard is to carry out international comparisons of stationary standards of the volt based on the Josephson effect and provide traceability of the measurements made using the Russian State Primary Standard of the volt, with the BIPM standard of the volt with a relative uncertainty of less than 2⋅10−10. The comparison standard apparatus is placed in a case which protects it when it is transported.