
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.
Figure 2-23
Operating Your Oscilloscope
To use the XY display mode
2–36
Kommentare zu diesen Handbüchern