公开(公告)号：US20170093307A1

公开(公告)日：2017-03-30

申请号：US15311616

申请日：2015-02-23

Applicant: NATIONAL UNIVERSITY CORPORATION SAITAMA UNIVERSITY

Inventor： Takeshi Mizuno

IPC: H02N15/00

CPC classification number: H02N15/00

Abstract: A magnetic levitation device includes a pair of magnets, a displacement detection means, and a control means. The pair of magnets generate magnetic force for supporting a ferromagnet in a noncontact manner. The displacement detection means detect the displacement of the ferromagnet in a lateral shift direction. The control means suppresses the vibration of the ferromagnet in a lateral shift direction. The control means controls the pair of magnets so that a stronger magnetic force acts on the ferromagnet that is displaced in a direction departing from the center of the vibration than when the ferromagnet is displaced in a direction returning to the center of the vibration.