Lorsqu'on utilise des courbes de Lissajous pour déterminer des déphasages, un déphasage de zéro ou de 180 degrés est indiqué sur l'écran de l'oscilloscope par :

Why

When two signals are exactly in step or exactly opposite, they rise and fall together on the oscilloscope screen, tracing a single path that slants across the display. The full explanation — and one for every question — is in Pro.

Practise this section

Measurements is section A-003 of the Advanced exam: Measurements: meters, oscilloscopes, counters, signal generators, and what a reading actually tells you.

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