Horizontal Controls 2
Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide 53
4 Press the [Cursors] key.
5 Set the Y2 cursor to the top of the signal, and set Y1 to the bottom of
the signal.
Note the ΔY value at the bottom of the display. In this example, we are
using the Y cursors, but you could have used the X cursors instead.
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 4 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
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