Horizontal Controls
2
Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes User's Guide
43
6
Move the Y1 and Y2 cursors to the intersection of the signal and the Y axis.
Again, note the
Δ
Y value.
7
Calculate the phase difference using the formula below.
For example, if the first
Δ
Y value is 1.688 and the second
Δ
Y value is 1.031:
Figure 8
Phase difference measurements, automatic and using cursors
sin
θ
=
second
Δ
Y
first
Δ
Y
=
1.031
1.688
;
θ
= 37.65 degrees of phase shift
NOTE
Z-Axis Input in XY Display Mode (Blanking)
When you select the XY display mode, the time base is turned off. Channel 1 is the X-axis
input, channel 2 is the Y-axis input, and the EXT TRIG input is the Z-axis input. If you only want
to see portions of the Y versus X display, use the Z-axis input. Z-axis turns the trace on and off
(analog oscilloscopes called this Z-axis blanking because it turned the beam on and off).
When Z is low (<1.4 V), Y versus X is displayed; when Z is high (>1.4 V), the trace is turned off.
