Magnetic interaction force between high-Tc superconductor-ring and magnet

The magnetic interaction force between superconducting ring and cylindrical permanent magnets of different lengths, aligned coaxially, has been investigated experimentally at zero-field-cooled and field-cooled conditions. The force as a function of the position of the magnet relative to the supercon...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2001-03, Vol.11 (1), p.1665-1668
Main Authors: Ma, K.B., Postrekhin, Y., Ye, H., Wei-Kan Chu
Format: Article
Language:English
Subjects:
Applied sciences
Dissipation
Electrical engineering. Electrical power engineering
Electromagnets
Exact sciences and technology
Force measurement
High temperature superconductors
Hysteresis
Hysteresis loops
Hysteresis losses
Journal bearings
Magnetic hysteresis
Magnetic levitation
Permanent magnets
Postal services
Superconducting magnetic energy storage
Superconducting magnets
Superconductivity
Superconductors
Telephony
Various equipment and components
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The magnetic interaction force between superconducting ring and cylindrical permanent magnets of different lengths, aligned coaxially, has been investigated experimentally at zero-field-cooled and field-cooled conditions. The force as a function of the position of the magnet relative to the superconductor ring is qualitatively that expected if the superconductor is regarded as a diamagnet with nonohmic dissipation. The hysteretic behavior of the axial force component was studied. It is shown that the size of the hysteresis loop grows with the strength of the magnet in general, but the shape of the loop also undergoes complicated changes. It was found that field-cooled conditions can yield a higher support force in this permanent magnet and superconducting ring system, with lower hysteresis loss. This makes this system an attractive candidate for a low loss magnetic journal bearing.
ISSN:1051-8223
1558-2515
DOI:10.1109/77.920101