Title :
Measurements of 10 V standards using a 1 V Josephson array
Author :
Henderson, Lesley C A ; Hartland, Anthony ; Williams, Jonathan M.
Author_Institution :
NPL, Teddington, UK
fDate :
4/1/1993 12:00:00 AM
Abstract :
A system is described which allows the measurement of 10-V electronic voltage standards using a 1-V Josephson array. A 9:1 potential divider, comprising two 3-kΩ×3-kΩ Hamon resistor networks, in effect converts 1.11 V from the array to 10 V. Following the determination of the effect of power dissipation in the Hamon networks the estimated overall uncertainty (combined 1-σ type-A and type-B) of a measurement at 10 V is 1.5 parts in 108
Keywords :
Josephson effect; measurement errors; measurement standards; superconducting junction devices; voltage dividers; voltage measurement; 1 V; 10 V; 3 kohm; Hamon networks; Josephson array; potential divider; power dissipation; resistor networks; uncertainty; Circuits; Contact resistance; Copper; Measurement standards; Microswitches; Power measurement; Resistors; Sockets; Temperature; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
