Coupling losses in superconducting, torus-shaped wires due to applied magnetic field changes

Autor:	P. J. Zandbergen, L.J.M. van de Klundert, E.M.J. Niessen, F.P.H. van Beckum, R.M.J. van Damme
Rok vydání:	1992
Předmět:	Physics Superconductivity Coupling AC losses Magnet stability Condensed matter physics General Mathematics General Engineering Torus Radius Magnetic field Nuclear magnetic resonance Electric field Superconductors Electric current Electrical conductor
Zdroj:	Journal of engineering mathematics, 26(3), 395-413. Springer
ISSN:	1573-2703 0022-0833
DOI:	10.1007/bf00042742
Popis:	The stationary electric field, current pattern and coupling losses in a multfilamentary, superconducting, twisted, torus-shaped wire are calculated for a torus placed in a homogeneous magnetic field increasing in time at a constant rate and parallel to the torus plane. The radius of the wire is considered to be small compared to the mean radius of the torus. An important parameter for the problem is the ratio between the twist length of the superconducting filaments and the mean radius of the torus. In the configuration considered this parameter is small. The coupling losses are approximately inversely proportional to the square of this ratio. Furthermore, for the wire to have unsaturated parts, the analysis shows that the rate of change of the magnetic field must decrease when this ratio increases.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53be22ec21fbe989efe3b51ec0af3930 https://doi.org/10.1007/bf00042742 Zobrazit plný text záznamu Full text from SpringerLink