Measurement Of Phase Difference - Kikusui COS5060 Instruction Manual

5.6 Measurement of Phase Difference
o Measurement of phase difference with Lissajous figure
(See Figures 5-6, 5-7 and 5-8):
Operate the oscilloscope in the X-Y mode as explained in the
paragraph for frequency measurement, and apply two signals of
the same frequency (such as stereophonic signals) to the X and
Y axes so that a Lissajous figure is displayed on the CRT screen.
The phase difference between the two signals can be calculated by
measuring the displayed waveform and employing the following
equation:
Phase difference 6 = sin ^ - B
A
180° 150°(240°) 90°(270°) 60°(300°) 0°(360°)
Figure 5-8
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