Magnetic Levitation employes diamagnetism, an intrinsic property of many materials referring to their ability to expel temporarily a portion of an external magnetic field. Superconductors are ideal diamagnetics and completely expel magnetic fields at low temperatures.
Types of maglev:
- Electromagnetic levitation (EML), which uses the attractive forces between electromagnets on the levitated object and the circuit on the ground.
- Electrodynamic levitation (EDL), which makes use of the repulsive force between superconductive magnets on the levitated object and induced current in the secondary circuit on the ground.
Subsystem of maglev:
- a magnetic suspension, to ensure a stable suspension of a vehicle in its own magnetic field.
- a propulsion motor, produce a propulsion force sufficient for a continuous flight of the vehicle along an assigned track with a given speed.
- power system, provides uninterrupted power supply.
- Levitating trains
- A maglev train is a train like vehicle that is suspended in the air above the track and propelled forward using the repulsive and attractive forces of magnetism.
- Maglev vehicles are designed for operating speeds of up to 500 km / hr.
- Maglev systems operate in almost all weather conditions.
- Levitating displays
Guru Nanak Education Trust Group Of Institutions (GNET), Roorkee