Bk-precision 2532B - Manual Bedienungsanleitung PDF herunterladen (Seite 170)

170

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).

Analyzing a Differential Communication

Signal

You are having intermittent problems with a serial data communication

link, and you suspect poor signal quality. Set up the oscilloscope to show

you a snapshot of the serial data stream so you can verify the signal levels

and transition times.

Because this is a differential signal, you use the math function of the

oscilloscope to view a better representation of the waveform.

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Bk-precision 2532B - Manual Bedienungsanleitung Seite 170