linear motor

linear induction motor

noun Electricity, Railroads.
an electric motor in which a movable part moves in a straight line, with power being supplied by a varying magnetic field set up by a fixed part of the system, as a metal rail on the ground.
Also, linear-induction motor.
Also called linear motor.
Compare induction motor.


Origin:
1965–70

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
linear motor
 
n
a form of electric motor in which the stator and the rotor are linear and parallel. It can be used to drive a train, one part of the motor being in the locomotive, the other in the track

Collins English Dictionary - Complete & Unabridged 10th Edition
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Dictionary.com's 21st Century Lexicon
Main Entry:  linear motor
Part of Speech:  n
Definition:  any motor in which the motion between the rotor and stator is linear due to electromagnetism, which provides thrust in a straight line by direct induction instead of through gears; also called [linear induction motor]
Example:  Linear motors are used in Vancouver's rapid transit system.
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Encyclopedia Britannica
Encyclopedia

linear motor

power source providing electric traction in a straight line, rather than rotary, as in a conventional motor; it is useful in such applications as high-speed ground transportation. In one form designed for rail vehicles, a continuous stationary conductor is fastened to the roadbed and a double stator is suspended between the wheels in the centre of the vehicle, straddling the stationary conductor. Electric energy is generated on the vehicle or is picked up by trolley from a power line paralleling the track. This energy is fed to the double stator to produce traction in a linear direction.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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