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. La-première-repose-sur-une-idée-totalement-novatrice, effectuer des mesures sur une bobine supraconductrice puis utiliser un algorithme afin d'extraire les paramètres locaux du fil ou ruban utilisé. Ainsi, la caractéristique E(J,B) du supraconducteur est obtenue dans ces futures conditions d'utilisation, i.e., il est bobiné

. La-seconde-méthode-de-caractérisation-Étudiée-est-celle-du and . Field, Le principe consiste à mesurer une carte de l'induction magnétique à proximité d'un échantillon supraconducteur Un calcul inverse est ensuite réalisé. Celui-ci permet, à partir des mesures de champ, d'obtenir la distribution du courant au sein de l'échantillon. Deux types d'inversion ont été testés : les inversions 1D et 2D. L'inversion 2D présente l'inconvénient, malgré des hypothèses moins fortes que pour l'inversion 1D

. La-méthode-a-Été-utilisée-pour-caractériser-un-ruban-ybacuo, La répartition du courant calculée à partir des mesures a été approximée par un modèle. La densité de courant critique jc est l'un des paramètres de ce modèle