amplitude

amplitude

Écart maximal entre une valeur qui varie régulièrement et sa valeur centrale.

En anglais simple : The greatest amount by which a regularly changing value moves away from its central value.

• The signal has a low amplitude.
• Louder sounds have greater amplitudes.
• We measured the amplitude of each vibration.

Comment l'utiliser : amplitude of something (The amplitude of the sound wave increased.)

Expressions courantes : wave amplitude, signal amplitude, amplitude of something

amplitude

Distance maximale entre une courbe répétitive et sa ligne centrale, vers le haut ou vers le bas.

En anglais simple : The greatest distance of a repeating curve above or below its central line.

• The curve has an amplitude of two.
• Calculate the amplitude from the graph.
• These functions have different amplitudes but the same period.

Comment l'utiliser : amplitude of something (The amplitude of this sine curve is three.)

Expressions courantes : amplitude of something, maximum amplitude, sine amplitude

ampleur, étendue

Mesure de la grandeur ou de la largeur de quelque chose.

En anglais simple : How large or wide something is.

• The hall's amplitude surprised us.
• She admired the amplitude of the valley.
• The report describes the amplitude of the damage.

Comment l'utiliser : amplitude of something (The amplitude of the landscape impressed the visitors.)

Synonymes : size, extent, breadth, magnitude

Expressions courantes : great amplitude, amplitude of something