Vibrational properties in superconducting levitation using melt-processed YBaCuO bulk superconductors

Abstract

The vibrational properties in superconducting levitation using melt-processed YBaCuO superconductors have been investigated. In both vertical and horizontal vibrations, the resonant frequency linearly decreases when increasing the gap between superconductors and a magnet. Resonant frequencies of 1–2 Hz can be achieved for larger initial gaps in the horizontal vibration. The effect of the load-weight on the resonant frequency is small for all initial gaps in vertical and horizontal vibrations, except for smaller gaps in the vertical vibration. The fact that the resonant frequency in superconducting levitation is almost completely unaffected by the change in load weight is due to the levitation force properties.