Abstract:The effect of magnet moving speed on the relaxation of the maximum levitation force of
YBCO bulk has been investigated. The experiment was carried out between a cylinder permanent
magnet and a single-domain YBCO bulk, and the levitation force was measured using a self-made
levitation force measurement system. It is found that the levitation force decreases with time after the
gap distance between the magnet and YBCO bulk reduced to 2 mm and kept for the test. It is also
found that the levitation force and its … Show more
The effect of the moving speed between a permanent magnet and a superconductor on the
levitation force of single-domain YBCO bulk has been studied at liquid nitrogen temperature. It is
found that the levitation force is much different with different moving speed, the maximum levitation
force and the stiffness of the force-distance curve are increasing first and then decreasing with the
increasing of the moving speed and, there is a reasonable speed to get the maximum levitation force. It
is also found that the maximum attractive force is decreasing with the increasing of the moving speed.
The effect of the moving speed between a permanent magnet and a superconductor on the
levitation force of single-domain YBCO bulk has been studied at liquid nitrogen temperature. It is
found that the levitation force is much different with different moving speed, the maximum levitation
force and the stiffness of the force-distance curve are increasing first and then decreasing with the
increasing of the moving speed and, there is a reasonable speed to get the maximum levitation force. It
is also found that the maximum attractive force is decreasing with the increasing of the moving speed.
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