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 ΔY value.
7 Calculate the phase difference using the formula below.
For example, if the first ΔY value is 1.688 and the second ΔY value is 1.031:
Figure 8 Phase difference measurements, automatic and using cursors
sinθ =
second Δ Y
first Δ Y
=
1.031
1.688
; θ = 37.65 degrees of phase shift
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.
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