单词 | atmospherics |
释义 | atmosphericsn. Atmospheric disturbances of electrical origin causing interference with communication in wireless telegraphy, television, etc. Also occasionally without final -s. ΘΚΠ society > communication > telecommunication > [noun] > signal > noise or interference > atmospheric atmospherics1905 the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > signal > [noun] > unwanted part of signal > types of stray1901 atmospherics1905 static1905 pickup1925 ambient noise1926 background1927 ground noise1929 hum1929 Johnson noise1929 microphonic1929 thermal noise1930 parasitic1943 flicker noise1947 overhang1971 1905 A. Y. Forrest in J. Erskine-Murray Handbk. Wireless Telegr. (1907) x. 181 Upon changing over to the Fessenden interference preventer, the terrific atmospheric was cut down to such an extent that I was enabled to receive the report. 1913 Year-bk. Wireless Telegr. 334 No signal nor atmospheric can put it out of action. 1915 Wireless World Apr. 55/1 To protect the condenser from strong ‘atmospherics’, a spark gap should be connected to the two plates of the condenser. 1919 R. Stanley Text-bk. Wireless Telegr. I. 173 Irregular noises are produced in the receiver telephones which seriously interfere with the reception of the regular signals; they are due to ‘Atmospherics’, or ‘strays’, or Xs. 1922 19th Cent. Apr. 619 It was possible, atmospherics or no atmospherics, to communicate daily both ways between England and Australia. 1934 Discovery Mar. 73/2 The Air Ministry chose this wavelength because it is only in this region that uninterrupted communication, free from all possibility of interference and atmospherics can be depended upon at all times. 1947 J. G. Crowther & R. Whiddington Sci. at War i. 15 The atmospheric is a very brief phenomenon. 1947 Sci. News 4 58 It is an accepted fact that ‘atmospherics’ are produced also by a radiation which comes to us direct from the centre of the Galaxy. This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2019). < n.1905 |
随便看 |
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。