Analyze Waveform or Trace Data
Histogram measurements
Measurement
Description
Waveform
Count
Displays the number of waveforms that contributed to the histogram.
Hits in Box
Displays the number of samples within the histogram box or on its boundaries.
Peak Hits
Displays the number of samples in the bin that contains the most hits.
Median
Displays the middle histogram data value, where half of all histogram data points are
less than this value and half are greater than this value.
Peak-to-peak
Displays the peak-to-peak value of the histogram. Vertical histograms display the voltage
of the highest nonzero bin minus the voltage of the lowest nonzero bin. Horizontal
histograms display the time of the right-most nonzero bin minus the time of the left-most
nonzero bin.
Histogram Max
Displays the voltage of the highest nonzero bin in vertical histograms or the time of the
right most nonzero bin in horizontal histograms.
Histogram Min
Displays the voltage of the lowest nonzero bin in vertical histograms or the time of the left
most nonzero bin in horizontal histograms.
Histogram
Mean
Measures the average of all histogram data points within or on the histogram box.
Standard
Deviation
Measures the standard deviation (Root Mean Square (RMS) deviation) of all histogram
data points within or on the histogram box.
Sigma1
Displays the percentage of the hits in the histogram that are within one standard deviation
of the histogram mean.
Sigma2
Displays the percentage of the hits in the histogram that are within two standard
deviations of the histogram mean.
Sigma3
Displays the percentage of the hits in the histogram that are within three standard
deviations of the histogram mean.
Customizing an Automatic Measurement in the Time Domain
You can customize automatic measurements by using gating, modifying measurement statistics, adjusting the measurement
reference levels, or taking a snapshot.
Gating
Gating con
fi
nes the measurement to a certain portion of a waveform. To use:
1.
Push
Measure
.
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