| 释义 |
emitter|ɪˈmɪtə(r)|
[f. emit v. + -er.]
1. That which emits. Const. of.
1883Tyndall Radiation in Contemp. Rev., Grasses were powerful emitters of heat. 1926Spectator 17 Apr. 696/1 Tungsten a powerful emitter of ultra-violet rays, when it is incandescent. 1927A. Huxley Proper Studies 72 No emitter of singular opinions is ever reasonable in the eyes of the..majority.
2. An electrode which emits current-carriers; an element in a transistor. Also attrib. and Comb., as emitter-base, emitter-follower, emitter-junction, emitter-resistance.
1948Physical Rev. LXXIV. 230/1 Two [electrodes], called the emitter and collector, are of the point-contact rectifier type. 1957Electronic Engin. XXIX. 3 The emitter resistance is inversely proportional to the emitter current. 1958Ibid. XXX. 200 The linear emitter-follower is characterized by a low impedance emitter output terminal, whose voltage approximates that of its base. 1962Simpson & Richards Junction Transistors ii. 25 The material from which these injected carriers come..is called the emitter and the junction between it and the base is called the emitter junction. Ibid. ix. 202 Because the emitter-base junction is a high-efficiency hole injector, very few electrons are removed via the emitter. |