EMP or simply electromagnetic propulsion is that concept of accelerating a given object by means of an electric current that is flowing and the resultant magnetic field. The current (electrical) in this case is utilized to create a magnetic field that is opposing in the system or in some cases to charge some fluid that can have an opposing object rebelling it. In this short paper, we discuss how magnetism can be used to propel trains by means of either EMS or EDS principles.
Maglev trains
Maglev trains, a short form of magnetic levitation trains are modern day trains that employ electromagnets to achieve motion. They are basically quieter, faster, more efficient and smoother than the wheeled trains. These trains have no conventional engines and can achieve speeds of up to 581km/h (Clark 19). Maglev trains rely on attraction and repulsion of electromagnetic poles.
Electromagnetic Suspension (EMS)
The EMS system employs a single set of electromagnets to levitate the train and applies another set for the propulsion of the same train. In the EMS system, the whole track is connected to a huge power source that powers the electromagnets. The sides of the EMS track contain a continuous solenoid (coils of wire) that makes a powerful electromagnet. This set of electromagnets repels the magnets on the bottom of the train carriage and causes it to float. Once the train is floated, the tracks employ a different magnetic system for propulsion. The system is indicated in the diagram below:
Works cited
Clark, Willow,Trains on the Move. The Rosen Publishing Group (New York), 2010
