Operation and Accuracy of an Automated Cryocooler-based 10 Volt Josephson Voltage Standard System
in: Elektronika (2011)
A commercially available complete microprocessor controlled, fully automated 10 Volt Josephson voltage standard system operated with a cryocooler was developed in cooperation between IPHT and Supracon. The system operates with an array of altogether 19,700 SIS Josephson tunnel junctions. A direct comparison to a helium-based system showed an agreement of 1.3 nV at a relative uncertainty of 2×10-10.