Linear Motor

WHAT IS LINEAR MOTOR ? • Electric motors that produce motion in a straight line rather than rotational motion. • Two basics types 1. low acceleration -suitable for Maglev train and other transportation applications 2. high acceleration -roller coaster

• Two main components 1. Rotor (rotating part) - central core of tightly wrapped magnetic field 2. Stator (static part) - the fixed poles of a magnet

MECHANISMS

Applications • A few countries are using powerful electromagnets to develop high-speed trains, called maglev trains. • Maglev is short for magnetic levitation, which means that these trains will float over a guide way using the basic principles of magnets.

•The principle of a Magnet train is that floats on a magnetic field and is propelled by a linear induction motor. A maglev train floats about 10mm above the guide way on a magnetic field. It is propelled by the guide way itself rather than an onboard engine by changing magnetic fields.