Title :
A computer-controlled Josephson voltage standard
Author :
Seppa, Heikki ; Immonen, P. ; Räihä, Jarmo
Author_Institution :
Electr. Eng. Lab., VTT, Espoo, Finland
fDate :
3/1/1988 12:00:00 AM
Abstract :
The characteristics of a computer-controlled Josephson voltage standard developed for routine calibrations of electrochemical cells are described. The device is also suitable for use as a transfer standard. The overall relative uncertainty (1 σ) of the device is less than one part of 108
Keywords :
Josephson effect; calibration; cells (electric); computerised instrumentation; measurement standards; superconducting junction devices; voltage measurement; computer-controlled Josephson voltage standard; electrochemical cells; measurement standard; routine calibrations; superconducting junction device; transfer standard; Calibration; Cryogenics; Joining processes; Laboratories; Resistors; SQUIDs; Standards development; Switches; Uncertainty; Voltage control;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
