Can I use the sync button on the oscilloscope to stabilize the Lissajous figure?

You cannot use the synchronization button on the oscilloscope; the Sartogram is actually formed by a particle vibrating on the X-axis and Y-axis at the same time. If the frequencies of these two mutually perpendicular vibrations are arbitrary values, their combined motion will be more complex and their trajectories will be unstable. The synchronization knob cannot be adjusted to stabilize it, but the frequency should be adjusted.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

No;

Every point on the Lissac diagram can be expressed by the following formula:

X=A1Cos(ω1t ψ1)

Y=A2Cos(ω2tψ2)

It can be seen from here that the Lissajous figure is actually formed by a particle vibrating on the X-axis and Y-axis at the same time. However, if these two mutually perpendicular If the frequency of vibration is an arbitrary value, then their combined motion will be more complicated and the trajectory will be unstable. However, if the frequencies of the two vibrations are a simple integer ratio, a stable and closed curve can be synthesized. This is the Lissajous figure.

The synchronization knob is to scan the same starting phase in each scan. So that there is only one stable figure in an oscilloscope. For example, when you measure a sine wave, there are multiple waveforms in the oscilloscope. , then you can adjust the synchronization knob.

But from the perspective of the formation principle of the Lissajous figure, adjusting the synchronization knob pattern cannot stabilize it. It should be to adjust the frequency.

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