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# amplitude

i. The amplitude of a wave is the maximum displacement, or the maximum value, it attains from its mean position during a cycle. It is both positive and negative. With sound waves, the greater the amplitude, the louder is the sound.
ii. Angular distance north or south of the prime vertical; the arc of the horizon or the angle at the zenith between the prime vertical and a vertical circle, measured north or south from the prime vertical circle. The term is used customarily only to refer to bodies whose centers are on the celestial horizon and is prefixed “E” or “W” as the body is rising or setting, respectively, and suffixed “N” or “S” to agree with the declination.

Aviation dictionary. 2014.

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• amplitude — [ ɑ̃plityd ] n. f. • XVe; lat. amplitudo 1 ♦ Vx Grandeur, étendue. « Dans l amplitude et immensité de la nature » (Pascal). 2 ♦ Sc. Différence entre les valeurs extrêmes d une grandeur. Amplitude d un intervalle borné : distance entre les bornes …   Encyclopédie Universelle

• Amplitude — is the magnitude of change in the oscillating variable, with each oscillation, within an oscillating system. For instance, sound waves are oscillations in atmospheric pressure and their amplitudes are proportional to the change in pressure during …   Wikipedia

• Amplitude — Am pli*tude, n. [L. amplitudo, fr. amplus: cf. F. amplitude. See {Ample}.] 1. State of being ample; extent of surface or space; largeness of dimensions; size. [1913 Webster] The cathedral of Lincoln . . . is a magnificent structure,… …   The Collaborative International Dictionary of English

• Amplitude [1] — Amplitude, wird in der Mathematik in verschiedenen Fällen als Bezeichnung für Winkel von spezieller Bedeutung gebraucht. So nennen manche Amplitude einer komplexen Zahl (a + ib) den durch die Gleichung a + ib = r (cosφ + isinφ)… …   Lexikon der gesamten Technik

• amplitude — AMPLITUDE. s. f. Dans le jet des bombes, c est la ligne horizontale comprise entre le point d où part la bombe, et celui où elle va tomber. L amplitude du jet.Amplitude, en Astronomie, est l arc de l horizon compris entre le vrai levant ou le… …   Dictionnaire de l'Académie Française 1798

• amplitude — of displacement at a point in a vibrating system is the largest value of displacement that the point attains with reference to its equilibrium position. double amplitude peak to peak amplitude static amplitude stress amplitude …   Mechanics glossary

• Amplitude — Sf Schwingungsweite per. Wortschatz fach. (19. Jh.) Entlehnung. Entlehnt und übertragen aus l. amplitūdo ( dinis) Größe, Weite, Erhabenheit , Abstraktum von l. amplus umfangreich, geräumig, groß .    Ebenso nndl. amplitude, ne. amplitude, nfrz.… …   Etymologisches Wörterbuch der deutschen sprache

• Amplitude — amplitudė statusas T sritis automatika atitikmenys: angl. amplitude vok. Amplitude, f; Schwingungsweite, f rus. амплитуда, f pranc. amplitude, f …   Automatikos terminų žodynas

• Amplitude — amplitudė statusas T sritis Standartizacija ir metrologija apibrėžtis Didžiausias virpamojo dydžio nuokrypis nuo pusiausvyros padėties. Amplitudinę vertę virpamasis dydis kiekviename virpesių pusperiodyje pasiekia tik vieną kartą. atitikmenys:… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

• Amplitude — amplitudė statusas T sritis fizika atitikmenys: angl. amplitude vok. Amplitude, f rus. амплитуда, f pranc. amplitude, f …   Fizikos terminų žodynas

• amplitude — (n.) 1540s, from M.Fr. amplitude or directly from L. amplitudinem (nom. amplitudo) wide extent, width, from amplus (see AMPLE (Cf. ample)). Amplitude modulation in reference to radio wave broadcast (as opposed to frequency modulation) first… …   Etymology dictionary

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