Non-contact magnet suspension with diamagnetic stabilization at horizontal orientation of magnetic moments

The paper considers a model of contactless suspension of a permanent magnet with diamagnetic position stabilization in a magnetic field created by two holding permanent magnets with horizontal orientation of magnetic moments. The forces acting on a suspended magnet are calculated using the expression for the interaction of point magnetic dipoles. A suspension layout has been created using NdFeB magnets for two options for the orientation of magnetic moments relative to the axis connecting the centers of the retaining magnets. The dependences of the interaction forces on the distance between the magnets for both variants are measured. It was found that the calculation satisfactorily describes the experimental dependences of the interaction forces on the coordinate even at small distances comparable to the size of magnets. The obtained expressions for the interaction forces can be used in the design and creation of wide-purpose magnetic suspension systems with increased lifting force.