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Subharmonic |
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subharmonic [¦səb·här′män·ik]
(physics) A sinusoidal quantity having a frequency that is an integral submultiple of the frequency of some other sinusoidal quantity to which it is referred; a third subharmonic would be one-third the fundamental or reference frequency. Subharmonic in radio engineering, a sinusoidal oscillation with a frequency usually equal to an integral submultiple or proper fraction of the fundamental frequency. Subharmonics are produced by means of frequency dividers. Some frequency dividers can reduce the frequency by a factor of several thousand in a single stage. REFERENCESRizkin, I. Kh. Umnozhiteli i deliteli chastoty. Moscow, 1966.Hughes, W. Nelineinye elektricheskie tsepi. Moscow, 1967. (Translated from English.) Lapitskii, E. G., A. M. Semenov, and L. N. Sosnovkin. Raschet diapazonnykh radioperedatchikov. Leningrad, 1974. Subharmonic (Russian, unterton), a sinusoidal component of a periodic oscillation of complex shape. The frequency of a subharmonic is an integral submultiple—usually by a factor of two—of the fundamental frequency. As a rule, subharmonics occur in nonlinear systems. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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