pole piece

American  

noun

Electricity.

1. a piece of magnetic material at a pole of a permanent magnet or of an electromagnet, shaped to control the magnetic flux distribution in the vicinity of the pole.

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pole piece British  

noun

1. electrical engineering a piece of ferromagnetic material forming an extension of the magnetic circuit in an electric motor, etc, used to concentrate the magnetic field where it will be most effective

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Etymology

Origin of pole piece

First recorded in 1880–85

Example Sentences

See Examples For:

pole piece

As a result it was difficult to maintain a permanent adjustment between the pole piece and the diaphragm.

From Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. by Miller, Kempster

The effort of this increase is to narrow the gap between the armature and pole piece.

From Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. by Miller, Kempster

This loss may be almost entirely avoided by laminating the pole piece, or both pole piece and core; in the latter case, both form one part without any joint.

From Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications by Hawkins, Nehemiah

This is shown in the above figures, which represent the effect of a projecting tooth, such as that of a Pacinotti ring, in changing the distribution of magnetism in the pole piece.

From Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications by Hawkins, Nehemiah

At C is shown what occurs during the final retreat of the tooth from the pole piece.

From Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications by Hawkins, Nehemiah