Keysight InfiniiVision HD3 Series - Phase

Measurements 14
Keysight InfiniiVision HD3-Series Oscilloscopes User's Guide 201
4 In the Add Parameter area, select:
• Source 1, Source 2 — Waveform sources.
• Source 1 Slope, Source 2 Slope — Rising edge or falling edge on.
• Auto — Uncheck so that edge numbers can be specified.
• Source 1 Edge #, Source 2 Edge # — Edge number for the selected source.
When Auto is selected for the Source 1 Edge #, the edge closest to the
timebase reference point is used. Auto is also automatically selected for the
Source 2 Edge #, and cannot be changed. In this case, the source 2 edge
closest to the source 1 edge is used.
When edge numbers are selected, edges are counted from the left side of
the display for both sources.
• Source 1 Threshold, Source 2 Threshold — Specifies whether the measurement
should be made using the Upper, Middle, or Lower threshold level on the
source.
5 Select Add Delay to activate the measurement.
The example below shows a delay measurement between the rising edge of
channel 1 and the rising edge of channel 2.
Phase
Phase is the calculated phase shift from source 1 to source 2, expressed in
degrees. Negative phase shift values indicate that the rising edge of source 1
occurred after the rising edge of source 2.