Title :
On Possible Use of Quantized Voltages of Shapiro Steps for Absolute Inductance Calibration and Governing Direct Currents
Author :
Frantsuz, E.T. ; Kajastie, H. ; Riski, K.
Author_Institution :
D. I. Mendeleyev Inst. for Metrol., St. Petersburg
Abstract :
It is suggested to make use of Shapiro step quantized voltages for controllable changes of magnetic flux in a superconducting loop. This makes it possible to produce a stable direct current (DC) scale by an external DC controller with the current magnitude adjustable in a ramping manner without unlocking the feedback. Also, a mutual inductance inherent to the setup can be calibrated on practically zero frequency in terms of fundamental constants and the second
Keywords :
Josephson effect; calibration; inductance; magnetic flux; superconducting junction devices; DC controller; Shapiro step quantized voltages; current magnitude; inductance calibration; magnetic flux; mutual inductance; superconducting loop; Calibration; Circuits; Frequency; Inductance; Josephson junctions; Magnetic flux; Metrology; Superconducting devices; Superconducting microwave devices; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2004 Conference on
Conference_Location :
London
Print_ISBN :
0-7803-8494-6
Electronic_ISBN :
0-7803-8494-6
DOI :
10.1109/CPEM.2004.305513
