| 释义 |
squegger Electronics.|ˈskwɛgə(r)|
[Of uncertain origin: perh. a shortened respelling of self-quench(ing + -er1.]
An oscillator whose oscillations build up to a certain amplitude and then cease for a time before beginning again; also, the production of such oscillations.
1921Radio Rev. May 248 The production of notes by a high-frequency oscillating valve making use of a grid leak and condenser, and the factors governing the pitch of this note, were discussed. The application of this arrangement (termed by Major Prince a ‘squegger’) to a receiver..was also described. 1932Admiralty Handbk. Wireless Telegr. 1931 xvi. 727 Receivers in which..self⁓oscillations alternately build up and are damped out without the necessity of a separate circuit to vary the reaction. These are called self-quenching receivers or squeggers. 1932Ladner & Stoner Short Wave Wireless Communications viii. 147 The presence of audible modulation..may also be brought about by a high resistance in the grid circuit... This effect..was called originally a ‘squegger’. 1932Wireless Engineer IX. 186 In the super⁓regenerative class, two receivers were available, one of the self-quench (or squegger) type. 1946C. A. Quarrington Mod. Pract. Radio & Television II. x. 156 Time bases employing the squegger principle are inclined to be affected unduly by working conditions.
Hence (as a back-formation) squeg v. intr., (of an electrical circuit) to oscillate intermittently, to be self-quenching; † ˈsqueggering vbl. n.; ˈsquegging vbl. n. and ppl. a.
1933QST Sept. 66/2 Coupling between this ‘squegging’ oscillator and the receiver is obtained. Ibid. Nov. 17/1 The receiver may be made..to operate as a super⁓regenerator, by increasing the screen voltage to the point where ‘squegging’ (low frequency oscillation) starts. 1938Television XI. 540/3 The valve is allowed to oscillate continuously with pauses of quiescence (‘squeggering’). 1939Radio Amateur's Handbk. 1940 (ed. 17) iv. 61/1 Too much feed-back will cause the oscillator to ‘squeg’, or operate at several frequencies simultaneously. 1942Electronic Engin. XIV. 629/3 The great difficulty in ultra high frequency oscillators is to obtain sufficient oscillation amplitude without squeggering or dead-spots in the turning range. 1947Ibid. XIX. 162 Increase of R3 to successively greater values results in the oscillator squegging. 1959K. Henney Radio Engin. Handbk. (ed. 5) xii. 22 The adjustment of the feedback to give oscillation without pulsing or squegging is very critical. 1973Simulation XXI. 77/2 There are circumstances under which squegging is desirable, such as in a superregenerative receiver. Ibid. 79/2 A squegging oscillator is highly sensitive to the settings of certain parameters. |