Experimental Techniques for Measuring the Critical Current in Superconducting Strands

Valentina Corato, Gianluca De Marzi, Chiarasole Fiamozzi Zignani, Luigi Muzzi, Rosario Viola, Antonio della Corte
Abstract:
The characterization of the critical current Ic in superconducting NbTi and Nb3Sn strands is carried out through a four-probe technique. Besides the dependence on temperature and magnetic field, which can be measured with a standard Variable Temperature Insert, the Ic of Nb3Sn samples is also sensitive to axial strain. For this measurement, specially dedicated probes can be used, among them we recall the Walters spring insert. Both systems and corresponding experimental techniques are here described.
Keywords:
Critical current, superconducting strands, strain, Walters spring
Download:
IMEKO-TC4-2014-357.pdf
DOI:
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Event details
IMEKO TC:
TC4
Event name:
TC4 Symposium 2014
Title:

20th IMEKO TC4 Symposium on Measurements of Electrical Quantities (together with 18th TC4 International Workshop on ADC and DCA Modeling and Testing, IWADC)
"Research on Electrical and Electronic Measurement for the Economic Upturn"

Place:
Benevento, ITALY
Time:
15 September 2014 - 17 September 2014