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.

---

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

---

Etymology

Origin of pole piece

First recorded in 1880–85

Example Sentences

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

Lundell combined the unsymmetrical and slotted forms of pole piece as shown in fig.

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

In construction, the above core and pole piece is made up of sheets of annealed steel of two different widths assembled together to form proper size and shape.

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

It forms twenty-nine turns in each section, and the direction of winding changes at each passage in front of a pole piece.

From Scientific American Supplement, No. 315, January 14, 1882 by Various

Wayne laminated pole piece before being cast welded into frame.

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