| 单词 | shot effect |
| 释义 | > as lemmasshot effect shot effect n. [translating German schroteffekt (W. Schottky 1918, in Ann. der Physik LVII. 547), < schrot small shot] the fluctuation in the magnitude of the anode current in a thermionic valve due to the random character of electron emission; also transferred, any fluctuation having a similar stochastic character. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > generator > [noun] > desired irregularities shot effect1923 the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [noun] > fluctuation in anode current shot effect1923 shot noise1930 1921 Sci. Abstr. A. 24 759 The object is the measurement of the spontaneous current variations in high-vacuum discharge tubes, a subject which has been previously dealt with theoretically by Schottky and called by him the ‘Schrot effect’ (literally, the small shot effect).] 1923 Chem. Abstr. 17 924 (heading) The present state of the shot effect problem. 1930 Proc. IRE 18 243 In the absence of space charge the noise has been termed by Schottky the ‘schroteffekt’, or ‘small shot effect’, from the analogy which the flight of electrons from the filament to the plate of a vacuum tube bears to the spattering of small shot fired from a shot gun. The simple term ‘shot effect’ will be used in this paper to denote this noise either with or without space charge. 1947 Electronic Engin. 19 82/1 Shot effect is more pronounced when the negative grid bias is greater than the usual value. 1964 N. Wiener God & Golem 41 There are..cases..where these irregularities are just what we wish to produce, and there are commercial devices for producing them. These are known as shot-effect generators. 1968 P. A. P. Moran Introd. Probability Theory ix. 423 Campbell's theorem originally arose in the study of the ‘shot effect’ in thermionic vacuum tubes. < as lemmas |
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