Title :
Cryocooled primary voltage standard system
Author :
Yi-hua Tang ; Hunt, Rick T. ; Robertazzi, Raphael ; Fisher, Matt ; Coughlin, J. ; Patt, R. ; Trac, E.
Author_Institution :
HYPRES, Elmsford, NY, USA
Abstract :
A Josephson junction array (JJA) cooled by a 4 K closed cycle refrigerator (CCR) is demonstrated as a primary voltage standard system. The calibration of a Zener voltage reference by this system is shown to have an uncertainty comparable to a liquid helium based system. Such a CCR system will have applications in national metrology labs, as well as in the military and commercial markets.
Keywords :
calibration; low-temperature techniques; measurement standards; superconducting junction devices; voltage measurement; 4 K; He; Josephson junction array; Zener voltage reference; calibration; closed cycle refrigerator; commercial markets; cryocooled primary voltage standard system; liquid helium; military markets; national metrology; primary voltage standard; uncertainty; Calibration; Helium; Laboratories; Magnetic heads; Refrigeration; Semiconductor device measurement; Temperature; Testing; Voltage; Wires;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547397
