| 释义 |
demagnetize, v.|diːˈmægnɪtaɪz|
[de- II. 1.]
1. trans. To deprive of magnetic quality.
1839Brit. Pat. 8255 2 My said invented improvements consists [sic] in employing, as my prime movers, a series of electro-magnets, which are alternately..magnetized and demagnetized. 1842–3Grove Corr. Phys. Forces (1887) 56 We must magnetise and demagnetise in order to produce a continuous mechanical effect. 1887Times 9 Sept. 14/5 Hot air traversing the discs and rolls demagnetizes the discs.
fig.1875Sears Serm. Chr. Life 43 People whose wills have been demagnetized.
†2. To free from ‘magnetic’ or mesmeric influence; to demesmerize. Obs.
1850W. Gregory Lett. Anim. Magnetism 106 This she ascribed to her not having been demagnetised, and it continued next morning.
Hence deˈmagnetizing vbl. n.; deˌmagnetiˈzation, the action or process of demagnetizing.
1843Rep. Brit. Assoc. 27 The de-magnetizings produced by operations which serve also to magnetize. 1864Webster, Demagnetization. 1872F. L. Pope Electr. Tel. ii. (1872) 23 The act of demagnetization requires time, but is effected more rapidly than magnetization. |