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Principales grandeurs c aractérisant u n signal variable sinusoïdal

Principales grandeurs c aractérisant u n signal variable sinusoïdal. Amplitude. Notation : Û ou Î. Valeur efficace. Notation : U ou I U=Û/ 2 I = Î/ 2. Période et fréquence. T en secondes. Fréquence f : f = 1/T f en Hz. Valeur instantanée. Notation : u ou i

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Principales grandeurs c aractérisant u n signal variable sinusoïdal

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  1. Principales grandeurs caractérisant un signal variable sinusoïdal

  2. Amplitude Notation : Û ou Î

  3. Valeur efficace Notation : U ou I U=Û/ 2 I = Î/ 2

  4. Période et fréquence T en secondes Fréquence f : f = 1/T f en Hz

  5. Valeur instantanée Notation : u ou i u = Û sin 2π t T Temps t

  6. Valeur moyenne Aire positive A U = A - A T Aire négative A Période T

  7. Déphasage Déphasage φ: φ = d x 360° D Ici : φ = 0,62x360 5 φ = 45° d D = 360°

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