field magnet

American  

noun

1. a magnet for producing a magnetic field, as in a particle accelerator or an electric motor.

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field magnet British  

noun

1. a permanent magnet or an electromagnet that produces the magnetic field in a generator, electric motor, or similar device

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field magnet Scientific  

1. A permanent magnet used to produce a base magnetic field against which other magnetized materials react, as in the operation of electrical devices such as motors, generators, and solenoids.

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Etymology

Origin of field magnet

First recorded in 1880–85

Example Sentences

In the first case the current through the field-helices will be partly neutralized and the magnetism of the field magnets will be diminished.

From Project Gutenberg

In this year he constructed an electric motor having its field magnets as well as its armature excited by the electric current.

From Project Gutenberg

Though used by Faraday, the separately excited dynamo did not come into favor until, in 1866, Wilde employed a small auxiliary magneto machine to furnish currents to excite the field magnets of a larger dynamo.

From Project Gutenberg

Magneto field magnets are always made of tungsten steel alloy, so treated that it will retain its magnetism for lengthy periods.

From Project Gutenberg

Series Motor.—In this type the field magnet windings are connected in series with the armature winding, i.e. the same current flows in both windings.

From Project Gutenberg