Josephon Array Voltage Calibration System: Operational Use and Verification

Abstract

A New Josephson Array System Now Maintains The U. S. Legal Volt On A Weekly Basis. The Accuracy Of The I-volt Level Of This System Was Verified To Within 0.03 Ppm In Multiple Tests Against Two Independent Resistive Dividers. The Precision In The Verification Was -limited By Uncertainties In The Divider Instruments.

Keywords

This publication has 11 references indexed in Scilit:

Precision of series-array Josephson voltage standards
Applied Physics Letters, 1987
The NBS Josephson array voltage standard
IEEE Transactions on Instrumentation and Measurement, 1987
Series-array Josephson voltage standards
IEEE Transactions on Magnetics, 1987
High precision measurement of a possible resistive slope of Josephson array voltage steps
IEEE Electron Device Letters, 1986
Microwave-induced constant-voltage steps at one volt from a series array of Josephson junctions
Applied Physics Letters, 1984
A Josephson voltage standard using a series array of 100 junctions
IEEE Transactions on Magnetics, 1981
On a proposed Josephson-effect voltage standard at zero current bias
Applied Physics Letters, 1980
An inverse ac Josephson effect voltage standard
Applied Physics Letters, 1977
High accuracy potentiometers for use with ten millivolt Josephson devices. II. Cascaded-interchange comparator
Review of Scientific Instruments, 1974
High Accuracy Potentiometers for Use with Ten Millivolt Josephson Devices. I. Double Series-Parallel Exchange Comparator
Review of Scientific Instruments, 1973