Title :
Development of a programmable bipolar Josephson-array voltage-standard
Author :
Liefrink, F. ; Houtzager, E. ; De Jong, G. ; Teunissen, P. ; Heimeriks, J.W. ; Dyrseth, A.A. ; Royset, A. ; Johnsen, L. ; Behr, R. ; Kohlmann, J. ; Schulze, H. ; Vollmer, E. ; Niemeyer, J.
Author_Institution :
NMi Van Swinden Lab., Delft, Netherlands
Abstract :
We describe the development of a programmable alternating voltage source based on a non-hysteretic Josephson array. The array is driven by a sinusoidal signal in combination with a digital code. The code causes the array to rapidly switch between states that correspond to its first positive and negative constant-voltage step respectively. If the inverse switching time is made comparable to the RF-drive frequency, the RMS value of the output-voltage can be calculated accurately.
Keywords :
Josephson effect; measurement standards; programmable circuits; superconducting arrays; superconducting junction devices; voltage measurement; I-V characteristics; RF-drive frequency; SINIS array; bipolar Josephson-array voltage-standard; digital code; inverse switching time is made; negative constant-voltage step; non-hysteretic Josephson array; output-voltage RMS value; phase alignment; phase locking; positive constant-voltage step; programmable alternating voltage source; sinusoidal signal; AC generators; Cybernetics; Frequency; Laboratories; Niobium; Superconducting devices; Superconducting transmission lines; Switches; Temperature; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2000 Conference on
Conference_Location :
Sydney, NSW, Australia
Print_ISBN :
0-7803-5744-2
DOI :
10.1109/CPEM.2000.851042
