| 释义 |
coercivity Magnetism.|kəʊɜːˈsɪvɪtɪ|
[f. coercive a. + -ity.]
The property of retaining coercive force; the value of the coercive force of a magnetized substance.
1898J. A. Fleming Magnets & Electr. Currents i. 16 The ability to retain the magnetic state with varying degrees of power against mechanical shocks or reversed magnetic force is called the Coercive Power of the body, or its Coercivity. 1902Encycl. Brit. XXVIII. 115/2 Steel containing tungsten possesses a large coercivity. 1910H. M. Hobart Dict. Electr. Engin. I. 106/1 Coercivity, the reverse magnetic field required to reduce a mass of iron which has been highly magnetised, to a state of zero magnetisation. 1933Radio Engin. Handbk. 34 Electromagnetic Structures. In this type of structure the magnetic material is usually very soft; its coercivity is very low. 1947Electronic Engin. XIX. 379 One type of wire..has..a coercivity of 300 oersteds. 1960Photogr. Jrnl. Aug. 232/2 Coercivity..is the ease with which a track can be magnetized or demagnetized. |