Development and realization methods for the study of local magnetic and transport characteristics of the superconducting tapes

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Abstract

It was developed and realized the method which allows carrying out a non-contact and non-destructive rapid testing of local magnetic and transport characteristics of the superconducting tapes. To investigate local transport characteristics we have to solve the inversion problem Biot-Savart-Laplas equation. We have developed the author's original numerical calculation algorithm. On the base of measurements of the spatial distribution of the magnetic field, induced by passing transport current through the tape we can calculate 2D distribution of the transport current. Such measurements provide a clear way to see the current path, identify weak areas of tapes, to evaluate the homogeneity of current flow and quality of the tape. Since our numerical algorithm is very fast, we can solve the problem of inversion in real time mode. In addition, we have made program for reel to reel system of investigation local transport properties of a long HTS tapes. Proposed method has no specific binding to a model, and the spatial resolution is limited only by the experimental method, which is measured spatial distribution of the magnetic field. There is only one limitation - Two-dimensional current flow in the samples.

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Pokrovskiy, S. V., Rudnev, I. A., & Podlivaev, A. I. (2012). Development and realization methods for the study of local magnetic and transport characteristics of the superconducting tapes. In Physics Procedia (Vol. 36, pp. 1558–1563). Elsevier B.V. https://doi.org/10.1016/j.phpro.2012.06.210

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