Rise Time; Fall Time; Delay - Agilent Technologies InfiniiVision 3000 X-Series User Manual

14
Measurements

Rise Time

The rise time of a signal is the time difference between the crossing of the
lower threshold and the crossing of the upper threshold for a
positive- going edge. The X cursor shows the edge being measured. For
maximum measurement accuracy, set the horizontal time/div as fast as
possible while leaving the complete rising edge of the waveform on the
display. The Y cursors show the lower and upper threshold points.

Fall Time

The fall time of a signal is the time difference between the crossing of the
upper threshold and the crossing of the lower threshold for a
negative- going edge. The X cursor shows the edge being measured. For
maximum measurement accuracy, set the horizontal time/div as fast as
possible while leaving the complete falling edge of the waveform on the
display. The Y cursors show the lower and upper threshold points.

Delay

Delay measures the time difference from the selected edge on source 1
and the selected edge on source 2 closest to the trigger reference point at
the middle threshold points on the waveforms. Negative delay values
indicate that the selected edge of source 1 occurred after the selected
edge of source 2.
Source 1
Source 2
1 Press the [Meas] key to display the Measurement Menu.
2 Press the Source softkey; then turn the Entry knob to select the first
3 Press the Type: softkey; then, turn the Entry knob to select Delay.
4 Press the Settings softkey to select the second analog channel source
232
analog channel source.
and slope for the delay measurement.
The default Delay settings measure from the rising edge of channel 1 to
the rising edge of channel 2.

Delay

Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide