Superconduction levitated actuator0301222-203
An actuator that has a movable part levitated by the Meissner effect
of a superconductor.
The superconduction-levitated actuator is free from friction. The
Meissner effect of a superconductor, which is produced by the shielding current on the surface,
varies in proportion to the square of the dimension like electrostatic force, hence suitable for
micromachines. In one example, a permanent magnet was levitated on a stator consisting of an array
super-conductors, and the magnet was moved by an electric current through the superconductors.