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Site Characterization Techniques Used in Environmental Restoration Activities | IAEA

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Sur une maquette didactique pour une application audio on propose le schéma proposé ci-contre dans lequel on utilise des cavaliers de configuration afin de modifier la fréquence

On obtient donc une amplitude de 0,5mV soit 1mV d'ondulation crête à crête ce qui n'est pas visible sur le

Afn de reproduire électroniquement ce signal audio on vous propose d’étudier le spectre du signal périodique Vpan que l’on peut approcher avec l’expression suivante

7KH GHPDQG IRU HQHUJ\ HVSHFLDOO\ HOHFWULFLW\ LQ GHYHORSLQJ FRXQWULHV LV H[SHFWHG WR JURZ UDSLGO\ LQ WKH FRPLQJ GHFDGHV DV WKH\ VHHN WR LPSURYH WKH OLYLQJ VWDQGDUGV RI WKHLU

• Réaliser un montage “amplificateur non inverseur” branché en entrée sur un générateur de tension réglable, et branché en sortie sur un résistor “de charge” réglable,

La manipulation est analogue à celle permettant d'observer la saturation en vitesse de balayage, mais la modification est d'un autre type : avant d'atteindre

• Sans effectuer les calculs, indiquer le schéma analogue, basé sur un montage amplificateur inver- seur de gain -1 (réalisé avec deux résistances Rʼ = 1 kΩ) auquel

Exprimer la vitesse de phase et la vitesse de groupe des ondes de gravité en fonction de g et du vecteur d ?onde k7. Quelle est la relation simple qui relie la vitesse de phase à