Determination of the Complete Penetration Magnetic Field of a HTS Pellet from the Measurements of the Magnetic Field at its Top-Center Surface - Archive ouverte HAL Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2017

Determination of the Complete Penetration Magnetic Field of a HTS Pellet from the Measurements of the Magnetic Field at its Top-Center Surface

Résumé

Our basic method to characterize HTS pellets, which has been presented in earlier publications, is based on the measurement of their complete penetration magnetic flux density BP. The method allows assessing the critical current density JC and the n-value through the classical power law model modeling the magnetic behavior of pellets and the direct measurement of BP. A first method used two slightly axially separated HTS disks to determine BP in the gap between the disks. However, this first method exhibits two main disadvantages. The first disadvantage is that the magnitude of the derived values depends on the spacing e between the two pellets. The second one is that the two pellets ought to be strictly identical for the method to lead to representative values of a given pellet. To overcome those constrains and limitations, we have been looking for a new improved method that relies only on the measurement involving a single pellet. The following work introduces the principle of this new method. The main idea is thus to deduce BP from the magnetic flux density measured at the center of the top surface when the applied magnetic flux density Ba equals BP. The maximum magnetic flux density produced by the SC pellet BZSCM is deduced from the measurement and multiply by an analytical coefficient to deduce BP.
Fichier principal
Vignette du fichier
EUCAS2017_Determination of the Complete Penetration Magnetic_final.pdf (862.41 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01598658 , version 1 (29-09-2017)
hal-01598658 , version 2 (12-01-2018)

Identifiants

  • HAL Id : hal-01598658 , version 1

Citer

Bruno Douine, Kévin Berger, Frédéric Trillaud, Mohamed Elbaa, El Hadj Ailam. Determination of the Complete Penetration Magnetic Field of a HTS Pellet from the Measurements of the Magnetic Field at its Top-Center Surface. 2017. ⟨hal-01598658v1⟩
79 Consultations
221 Téléchargements

Partager

Gmail Facebook X LinkedIn More