很久以来，人类一直设想用磁力使物体处于天接触是浮状态。直到十九世纪中叶，人们才发现：为了使电磁铁实现稳定地磁悬浮，必须根据物体的悬浮状态不断地调节磁场力的大小，即采用可控电磁铁才能实现。这是电磁轴承的基本原理。电磁轴承是利用电磁力使轴承稳定悬浮起来且轴心 For a long time, mankind has been envisaging the use of magnetic objects in contact with the sky is floating state. It was not until the mid-nineteenth century that people realized that in order to stabilize the electromagnet, it is necessary to constantly adjust the magnitude of the magnetic field force according to the state of suspension of the object, that is, the controllable electromagnet can be used. This is the basic principle of electromagnetic bearings. Electromagnetic bearings are the use of electromagnetic force to make the bearing stable suspension and axis