linear synchronous motor

A linear synchronous motor is a type of electric motor that provides power in a straight line, unlike conventional rotary motors. It is particularly useful for applications requiring linear motion, such as high-speed ground transportation. In one design, a stationary conductor runs along the track, and a double stator on the vehicle straddles this conductor. Electric energy, supplied to the vehicle, powers the stator to create linear traction.1

Linear motors can also be used for other devices needing linear motion, like belt conveyors or shuttles in textile looms. An electromagnetic pump is an example where a linear motor moves a conducting fluid.1

Synchronous motors, in general, have a rotor that rotates at the same speed as the magnetic field generated by the stator. This is achieved by supplying direct current to the rotor's field winding, creating a magnetic field that aligns with the rotating stator field.2