| 释义 |
alternator Electr.|ˈɔːltəneɪtə(r)|
[f. alternate v. + -or.]
A dynamo giving an alternating current.
1892Sci. Amer. 16 Apr. 246/1 (heading) 250-Kilowatt ‘Mordey-Victoria’ Alternator. Ibid., The electromotive force of the alternator varies only about five per cent, even if the full load is thrown on or off. 1893G. Kapp Dynamos 10 The alternator, in which mechanical energy of rotation is converted into the energy of an alternating current. 1919R. Stanley Wireless Telegr. (ed. 2) I. 86 An alternator is a machine in which the difference of potential, or voltage, induced has not a constant value, as in an ordinary direct current generator, but rises and falls and reverses in direction many times per second. 1962Newnes Conc. Encycl. Electr. Engin. 337/2 The turbo-alternator is essentially a high-speed construction..for coupling to steam or gas turbines..the salient-pole alternator is suited to..lower speeds and may therefore be driven by water turbines or internal-combustion engines. |