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thermal noise

noun, Thermodynamics, Electricity
a wide spectrum of electromagnetic noise appearing in electronic circuits and devices as a result of the temperature-dependent random motions of electrons and other charge carriers.
Compare shot effect.
Origin of thermal noise
1925-30 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for thermal noise
  • At extremely large distances, the power density can not be distinguished separately from thermal noise.
  • And you can only detect some quantum mechanical effects if you get the thermal noise down to vanishingly low levels.
  • In the terahertz range, however, both quantum and thermal noise are important and must be dealt with.
  • Simulations show that noise cancellation circuits decrease thermal noise and increase gain.
  • thermal noise includes topography, variations in thermal conductivity, and intrinsic endothermic and exothermic sources.
  • The errors in measurement came predominantly from the random thermal noise in the detectors.
British Dictionary definitions for thermal noise

thermal noise

electrical noise caused by thermal agitation of conducting electrons
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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