| 释义 |
▪ I. † ˈvoltage1 Obs.—1
[f. F. volte volte + -age.]
The action of causing a horse to move in voltes.
1606Ford Fame's Mem. xxxii, He assaies, Which way to manage an vntamed horse When, how, to spur, and rayn, to stop, and raise, Close sitting, voltage of a manlike force.
▪ II. voltage2|ˈvɒltɪdʒ, ˈvəʊltɪdʒ|
[f. volt n. + -age.]
a. Electromotive force reckoned or expressed in volts. Also fig.
1890Pall Mall G. 8 Aug. 4/3 The voltage varied between 700 and 1,300 volts. 1894S. R. Bottone Electr. Instr. 111 In calculating the voltage, the desired current must also be considered, and allowance made both for the internal and external resistances. 1898Allbutt's Syst. Med. V. 855 It is difficult to say what voltage is fatal to man.
fig.1904Spectator 30 Apr. 670/1 Pope..was seldom the subject of currents of high voltage like..the emotional Hazlitt. 1949E. Pound Pisan Cantos lxxx. 85 Whoi didn't he [sc. Padraic Colum] keep on writing poetry at that voltage. 1961Times 24 Mar. 18/4 Walton's first symphony is a work of extraordinarily high voltage. 1978F. Olbrich Desouza pays Price xx. 125 Beaming the full voltage of her smile at Habib.
b. attrib. (esp. with adj. preceding). Also in fig. use.
1890Daily News 4 Jan. 6/7 There is as much danger from the low voltage as there is from the high voltage system, as far as fire is concerned. 1894Ibid. 22 Jan. 2/8 The question of high voltage electricity. 1959Listener 8 Oct. 590/1 Synge's brief but high-voltage career. 1966N. Freeling King of Rainy Country 128 Her high-voltage emotions injected into the situation would doubtless tangle things still further.
c. Comb., as voltage doubler, voltage-regulation, voltage regulator; voltage-doubling adj.; voltage clamp Physiol., (the application of) a constant voltage maintained across a cell membrane by artificial means; so voltage-clamped a., -clamping vbl. n.; voltage-controlled a., controllable by varying the applied voltage; voltage divider, a linear resistor or series of resistors which can be tapped at any intermediate point to obtain a voltage equal to a desired fraction of the voltage applied between its ends.
1952Jrnl. Physiol. CXVII. 504 (heading) Mathematical description of membrane current during a voltage clamp. 1964G. H. Haggis et al. Introd. Molecular Biol. vi. 159 These ionic permeability changes associated with the action potential have been studied in squid axons and frog muscle cells..with the very elegant ‘voltage clamp’ technique. 1979Acta Protozoologica XVIII. 183 Instantaneous I/V plots of voltage-clamped deciliated cells lack the negative resistance property characteristic of ciliated cells. 1981Nature 15 Oct. 517 Although the principle is simple enough—to keep the voltage across a cell membrane constant—the technology of voltage-clamping has become a sophisticated exercise in electrical engineering.
1962Simpson & Richards Physical Princ. Junction Transistors xiv. 359 External methods of gain control usually employ auxiliary diodes..to act as a voltage-controlled potential divider. 1976Electronic Engin. Nov. 27/1 It [sc. a waveform generator circuit] can be used..in many other applications where a voltage controlled waveform is required.
1930Sci. Abstr. B. XXXIII. 846 (Index), Voltage dividers, capacity and resistance types. 1932Bureau of Standards Jrnl. Res. (U.S.) IX. 81 (heading) Theory of voltage dividers and their use with cathode ray oscillographs. 1983IEEE Trans. Instrumentation & Measurement XXXII. 33/2 The attenuation reference standard in this system is a high class..inductive voltage divider.
1947R. Lee Electronic Transformers & Circuits iii. 51 (heading) Voltage doublers. Ibid. (caption) Relation of peak sine voltage to d-c voltage in voltage-doubling circuit. 1956Nature 18 Feb. 298/1 Electrical characteristics are next treated, including..descriptions of..voltage-regulation methods and apparatus.
1902Encycl. Brit. XXVIII. 90/2 (heading) Voltage regulators. 1962Simpson & Richards Physical Princ. Junction Transistors 496 We consider a voltage regulator whose input voltage..and output voltage and current..are connected by the equation [etc.]. |