A.c. loss measurements in high-tc superconductors

Beghin, E.; Böck, J.; Duperray, G.; Legat, D.; Herrmann, P.F.

doi:10.1016/0964-1807(95)00084-4

Cited by 11 publications

(1 citation statement)

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“…Magnetic methods are suitable for situations in which the loss is mainly determined by the external field. Finally, calorimetric methods [12,13] are suitable to measure the total dissipated energy by means of the temperature increase which is caused in the conductor, or by the amount of cryogen that evaporates within a given time. Their accuracy is generally less than that of the other two methods and they are mainly used for large volumes or with complicated geometries where other methods would be impractical.…”

Section: Introductionmentioning

confidence: 99%

Magnetic ac loss in multi-filamentary Bi-2223 / Ag tapes

Oomen

Rieger

Leghissa

et al. 1997

Physica C: Superconductivity

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The ac loss in high-T c superconducting tapes with twisted and non-twisted filaments has been studied by a magnetic method. A brief overview of the theoretical background and the experimental set-up is presented. Measurements were made at 77 K in a magnetic field of 50 Hz frequency and 0.001-0.7 T amplitude. Application of dc transport current made it possible to distinguish between the loss components, arising from intra-grain and from filament currents. The magnitude of the filament loss component indicates that the filaments are fully coupled, which agrees with theory. In other measurements, the orientation of the external field with respect to the tape was varied. Knowledge of the ac loss in parallel and in perpendicular field is sufficient to predict the ac loss for any intermediate orientations of the field. © 1997 Elsevier Science B.V.

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Section: Introductionmentioning

confidence: 99%