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Chapter 4 Horizontal System
57
XY Mode Example
This exercise shows the usual practice of XY display mode by measuring the phase difference between two signals
of the same frequency using the Lissajous method.
1) Connect sine wave signals to CH1 and connect sine wave signals of the same frequency and different phases to
CH2.
2) Press “Auto” set button, tap “Display” in the main menu, then select “XY” in “Time Base”.
3) Drag signals so that they are centered on the display screen. Adjust the vertical sensitivity of CH1 and CH2,
and extend signals for viewing.
The phase difference (θ) can be calculated using the following formula (assuming that the amplitudes of the
two channels are the same):
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