Nondestructive Quality Testing of High Temperature Superconducting Bulk Material Used in Electrical Machines and Magnetic Bearings

Ryszard Palka, Hardo May and Wolf-Rüdiger Canders
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Ryszard Palka: Technical University of Braunschweig, Institute of Electrical Machines, Traction and Drives
Hardo May: Technical University of Braunschweig, Institute of Electrical Machines, Traction and Drives
Wolf-Rüdiger Canders: Technical University of Braunschweig, Institute of Electrical Machines, Traction and Drives

A chapter in Optimization and Inverse Problems in Electromagnetism, 2003, pp 303-312 from Springer

Abstract: Abstract This paper deals with a non-destructive examination method for high tempera ture superconductors (HTSC’s) based on the scanning of the magnetic field distribution which is trapped by a superconductor. The identification of the positions, dimensions and orientations of sub-domains within the HTSC —which are determining the quality— has been reduced to the determination of the critical current density (JC) distribution within the HTSC using above mentioned measurements. This inverse field problem has been solved by an appropriate numerical algorithm based on extended finite element formulations.

Keywords: quality control; high temperature superconductors; current density identification; electrical machines; magnetic bearings (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-94-017-2494-4_31

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DOI: 10.1007/978-94-017-2494-4_31

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