SCHOOL OF COMPUTER AND COMMUNICATION SCIENCES
EPFL Applied Superconductivity AC Losses Measurement

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• Teaching
  Applied SC CourseProposed Projects
• Publications
• Modelling
  Fault Current Limiter;Inhomogeneity & FCLConductorStacked ConductorsEquivalent Circuit
• Characterization
  AC LossesI_c & nTapes for FCLField MappingMagneto-Optic
• Workshop
  Lausanne 2010Cambridge 2011

Transport AC Losses Measurements

Our original setup uses a multiple channel digital lock-in amplifier, Lock-In technique description (in french)

Experimental Layout

Loss measurements, comparison between two labs on the same sample

Losses as a function of frequency

Losses with applied DC magnetic field

Loss dependence on the direction of the DC applied magnetic field

Bertrand Dutoit,   Last updated: september 2011,   © 2003-2011 EPFL-I&C-SCIICBD 1015 Lausanne