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2025-12-29

“Johnson noise”的英文意思

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.
“Johnson noise”的英文意思

　

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