Measurements 15
Keysight InfiniiVision 3000T X-Series Oscilloscopes User's Guide 261
Bit Rate
The bit rate measurement measures all positive and negative pulse widths on the
waveform, takes the minimum value found of either width type and inverts that
minimum width to give a value in Hertz.
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 between two waveform edges using the
middle threshold points of the waveforms.
Negative delay values indicate that the selected edge of source 1 occurred after
the selected edge of source 2.
1 Press the [Meas] key to display the Measurement Menu.
2 Press the Add Meas softkey.
3 Press the Type: softkey; then, turn the Entry knob to select Delay.
4 Click the Parameter softkey; then, select and specify the following parameters:
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