Figure 4.3 - Out of Phase Signals (45 degrees)
Figure 4.4 – Out of Phase Signals in XY Mode (45 degrees)
Sin θ=A/B or C/D where θ=phase shift (in degrees) between the
two signals from the formula above, you could get:
θ=±arcsine (A/B) or ±arcsine (C/D)
If the main axis of the ellipse is at II and IV quadrant, θ must be in
the range of (0-π/2) or (3π/2-2π). If the main axis is at I and III
quadrant, θ must be in the range of (π/2-π) or (π-3π/2).
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