| 单词 | Hertz |
| 释义 | Hertz
(hɜːts, ‖ hɛrts)
1. The name of H. R. Hertz (1857–1894), German physicist, used attrib. to denote apparatus used or invented, phenomena discovered, or concepts elaborated by him.
1890Nature Feb. 368 By separating the coats of the jar as far as possible we get a typical Hertz vibrator. 1892O. Lodge Mod. Views Electr. 361 Hertz waves can get through deal doors and stone walls. 1898Science Siftings XIV. 117/2 A Hertz-wave ‘detector’. 1898Westm. Gaz. 12 May 9/2 Experiments in Hertz-wave space telegraphy. 1902Encycl. Brit. XXXIII. 230/2 This aerial being used as a Hertz oscillator or radiator. 1962Corson & Lorrain Introd. Electromagn. Fields xiii. 488 The Hertz vector Π is defined by the equation A = εµ ∂Π / ∂t .
2. Physics. (Usu. hertz.) A unit of frequency, equal to one cycle per second. Abbrev. Hz.
1928B.B.C. Handbk. 270/1 Hertz, a term sometimes used to designate frequency, meaning one cycle per second. 1934Electr. Engin. (U.S.) LIII. 403/2 It was proposed by the Italian committee that the name hertz be given to the unit of frequency—one cycle per second... The hertz is used almost universally in German technical literature. 1967Electronics 6 Mar. 325/1 Markus continues to use ‘cycles per second’ instead of ‘hertz’. 1967New Scientist 5 Oct. 6/2 The frequency band between about 10 megahertz and 20 gigahertz is technically suitable for space communication. |
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