S 68 Smolyak, B. M. On the force relaxation in the magnetic levitation system with a high-tc superconductor [Electronic resource] / B. M. Smolyak, M. S. Zakharov // Superconductor Science and Technology. - 2014. - Vol. 27, № 5. - С. 055018 (1-5). - Bibliogr. : p. 055018-5 (17 ref.) Рубрики: ФИЗИКА Кл.слова (ненормированные): LEVITATION -- MAGNETIC RELAXATION -- BULK HIGHTEMPERATURE Аннотация: 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 slow down the flux creep process, which is activated when these oscillations are suppressed \\\\expert2\\NBO\\Superconductor Science and Technology\\2014. V. 27, N 5. P. 055018.pdf |