title: Flux transformers made of commercial high critical temperature superconducting wires.
abstract: We have designed flux transformers made of commercial BiSCCO tapes closed by soldering with normal metal. The magnetic field transfer function of the flux transformer was calculated as a function of the resistance of the soldered contacts. The performances of different kinds of wires were investigated for signal delocalization and gradiometry. We also estimated the noise introduced by the resistance and showed that the flux transformer can be used efficiently for weak magnetic field detection down to 1 Hz.
authors.affiliation: Service de Physique de L'Etat Condensé, DSM/DRECAM/SPEC, CEA-Saclay, 91191 Gif-sur-Yvette, France. hadrien.dyvorne@cea.fr
authors.forename: H
authors.initials: H
authors.lastname: Dyvorne
authors.forename: J
authors.initials: J
authors.lastname: Scola
authors.forename: C
authors.initials: C
authors.lastname: Fermon
authors.forename: J F
authors.initials: JF
authors.lastname: Jacquinot
authors.forename: M
authors.initials: M
authors.lastname: Pannetier-Lecoeur
mesh_terms: D017076:Computer-Aided Design; D004553:Electric Conductivity; D004559:Electric Wiring / Q000295:instrumentation* / Q000379:methods; D004581:Electronics / Q000295:instrumentation*; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006358:Hot Temperature; D008280:Magnetics / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity