Magnetic levitation or magnetic levitation is a method by which objects can be levitation unsupported without a magnetic field. Magnetic force is used to counteract the effects of gravitational acceleration and any other acceleration
The two main problems involved in magnetic levitation are lifting force: providing upward force and stability sufficient to counteract gravity: ensuring that the system will not spontaneously slide or flip into a state of counteracting lifting. Magnetic levitation is used for magnetic levitation trains, non-contact melting, magnetic bearings and product displays, such as GLEAGLE magnetic levitation displays, magnetic levitation globes and magnetic levitation bulbs.
Magnetic materials and systems can be separated from each other or attracted or squeezed together, or together rely on forces that depend on the magnetic field and magnet area. For example, the simplest example of lifting is a simple dipole magnet placed in the magnetic field of another dipole magnet that is oriented with the same poles opposite to each other so that the force between the magnets will repel the two magnets.
Basically, all types of magnets have been used to generate magnetic levitation lift. Permanent magnets, electromagnets, ferromagnetism, diamagnetism, superconducting magnets and magnetism caused by induced currents in conductors. To calculate the lift force, a magnetic pressure can be defined.