Agilent Technologies DSO-X 4022A, User Manual

Page: 269 / 488

Measurements
14
Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide 269
You can press the Display On softkey again to disable the measurement
statistics display. Statistics continue to accumulate even when the
statistics display is disabled.
5
To reset the statistics measurements, press the
Reset Statistics
softkey.
This resets all statistics and begins recording statistical data again.
Each time a new measurement (for example: frequency, period, or
amplitude) is added the statistics are reset and accumulation of
statistical data begins again.
6 To enable a relative standard deviation, press the Relative
σ
softkey.
When enabled, the standard deviation shown in measurement statistics
becomes the standard deviation/mean.
7
To specify the number of values used when calculating measurement
statistics, press the
Max Count softkey and enter the desired value.
Other things to know about measurement statistics:
• When the
[Single]
key is pressed, statistics are reset and a single
measurement is done (count = 1). Successive
[Single]
acquisitions
accumulate statistical data (and the count is incremented).
• The Increment Statistics softkey only appears when the acquisition is
stopped and the optional segmented memory feature is off. Press the
[Single] or [Run/Stop] key to stop the acquisition. You can use the
horizontal position control (in the Horizontal control section of the
front panel) to pan through the waveform. Active measurements will
stay on screen, allowing you to measure various aspects of the captured
waveforms. Press
Increment Statistics to add the currently measured
waveform to the collected statistical data.
• The
Analyze Segments
softkey only appears when the acquisition is
stopped and the optional segmented memory feature is on. After an
acquisition has completed (and the oscilloscope is stopped), you can
press the
Analyze Segments
softkey to accumulate measurement statistics
for the acquired segments.
You can also turn on infinite persistence (in the Display Menu) and
press the
Analyze Segments
softkey to create an infinite persistence
display.