英语词汇“Johnson noise”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	Johnson noise
释义	Johnson noise Electronics. [Named after John Bertrand Johnson (b. 1887), naturalized U.S. physicist, who published an account of it in 1928.] Electrical noise caused by the random thermal motion of conduction electrons. 1931Proc. IRE XIX. 1407 Finally..an irreducible minimum of noise is encountered, commonly referred to as ‘Johnson’ or circuit noise.1947[see flicker noise (flicker n.³ 4)].1958Condon & Odishaw Handbk. Physics v. iii. 31/1 This voltage fluctuation, called Johnson noise, which places a limit on the ultimate sensitivity of amplifiers, provides a method for measuring thermodynamic temperature.1973Physics Bull. Oct. 596/2 Any electrical resistor exhibits a Johnson noise voltage, with a mean square amplitude proportional to absolute temperature.
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