To provide a magnetic levitation device in which a length of an air gap between a magnet unit and a levitating body is set large, and which reduces power consumption and prevents a position of the levitating body to disturbance in various directions from changing.
The magnet units 22 comprising an electromagnet and a permanent magnet are attached to a magnet attaching part 28 such that the units are placed opposite to each other, and the magnet attaching part 28 can move with respect to one axis through a suspension 30. In addition, an electromagnetic force based on a zero power control acts on an iron circular ring 48 from the magnet unit 22 with a controller 46, and the levitating body 11 is magnetically-levitated by the electromagnetic force. Thus, a position change and increase of the power consumption required to a non-contact support of the levitating body 11 with respect to external force can be prevented.
ITO HIROAKI
JPH08275309A | 1996-10-18 | |||
JPH0885625A | 1996-04-02 | |||
JP2004150628A | 2004-05-27 | |||
JPH0688592A | 1994-03-29 |