HP HP 54600B, User'S And Service Manual

Page: 61 / 183

To use the XY display mode
The XY display mode converts the oscilloscope from a volts versus time
display to a volts versus volts display. You can use various transducers so the
display could show strain versus displacement, flow versus pressure, volts
versus current, or voltage versus frequency. This exercise shows a common
use of the XY display mode by measuring the phase shift between two signals
of the same frequency with the Lissajous method.
1
Connect a signal to channel 1, and a signal of the same frequency but
out of phase to channel 2.
2
Press
Autoscale
, press
Main/Delayed
, then press the XY
softkey.
3
Center the signal on the display with the Position knobs, and use the
Volts/Div knobs and the vertical
Vernier softkeys to expand the signal
for convenient viewing.
sin
θ =
A
B
or
C
D
, where
θ
= phase shift (in degrees) between the two signals.
Phase shift Parameters
Figure 2–23
Operating Your Oscilloscope
To use the XY display mode
2–34