| 单词 | field magnet |
| 释义 | > as lemmasfield magnet field magnet n. a permanent magnet which provides a stationary magnetic field in an electrical apparatus, esp. a motor or dynamo.In a dynamo the field magnet provides the magnetic field through which the conductors are moved, so that an electric current is produced in the conductors. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > [noun] > magnet > for creating magnetic field field magnet1878 field1889 the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > dynamo > [noun] > magnet field magnet1878 the world > matter > physics > electromagnetic radiation > magnetism > magnetic devices or materials > [noun] > a magnet > field magnet field magnet1878 1878 C. Brush Brit. Patent 2003 9 This device, which I have called a ‘teaser’, is used in connection with field magnets..for the purpose of..increasing the magnetic field. 1940 Pop. Sci. Monthly July 190/1 The outer field magnets are wound with about twelve feet of wire, and the same length is used to wind the two legs of the armature or rotor. 1973 L. C. Robinson Physical Princ. Far-infrared Radiation iv. 191 (caption) Electrons from a cathode are wound into helical motion in a helical field magnet and a mirror field. 2005 M. E. Brumbach Industr. Electr. (ed. 7) xvi. 359/2 If an electromagnet is used in place of the permanent field magnet, the field strength can be increased. < as lemmas |
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