High T c superconducting levitation motor with a laser commutator
- 1 January 1990
- journal article
- letter
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 61 (1) , 195-197
- https://doi.org/10.1063/1.1141875
Abstract
A high Tc superconducting levitation bearing driven by an optically switched solenoid is described. The bearing uses flux pinning in the new high Tc superconductors for stability. A simple liquid nitrogen supply system is described that greatly improves the ease with which high Tc superconductors can be maintained at 77 K for extended periods of time in small styrofoam dishes. A force versus height curve is given and is used to determine the design limits of the levitation bearing. Alternate motor designs are discussed.Keywords
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