Title :
Cryocooler-based quantum voltage standard with dual rf drive
Author :
Georgakopoulos, D. ; Budovsky, I.F. ; Hagen, T. ; Sasaki, H. ; Yamamori, H.
Author_Institution :
Nat. Meas. Inst., Lindfield, NSW, Australia
Abstract :
We have developed a Programmable Josephson Voltage Standard (PJVS) that can produce voltages up to 20 V with a resolution of better than 0.1 μV and that does not require liquid helium. The system has two superconductor - normal metal - superconductor junction arrays connected in series and driven by two radiofrequency oscillators. The new system agrees with the primary Josephson voltage standard maintained at the National Measurement Institute, Australia, to within 10 nV.
Keywords :
liquid helium; measurement standards; radiofrequency oscillators; superconducting materials; superconductivity; voltage measurement; Australia; National Measurement Institute; PJVS; cryocooler-based quantum voltage standard; dual RF drive; liquid helium; programmable Josephson voltage standard; radiofrequency oscillator; superconductor-normal metal-superconductor junction array; voltage 10 nV; Australia; Josephson junctions; Oscillators; Radio frequency; Standards; Temperature sensors; Voltage measurement; Josephson standards; quantum electrical standards; voltage generation;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4673-0439-9
DOI :
10.1109/CPEM.2012.6250727
