On The Force Relaxation In The Magnetic Levitation System With A High-T-C Superconductor
SUPERCONDUCTOR SCIENCE & TECHNOLOGY(2014)
摘要
The effect of magnetic flux creep on the lift force in a magnet/superconductor system was studied. It was shown experimentally that in the case of real levitation (when a levitating object bears only on a magnetic field) the suspension height and consequently the lift force did not change over a long period of time. When the levitating object is fixed for some time (i.e. a rigid constraint is imposed on it), the levitation height decreases after removal of the external constraint. It is assumed that free oscillations of the levitating object
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关键词
bulk high-temperature superconductor, levitation, magnetic relaxation
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