Analyze Wavefor
morTraceData
Miscellaneous measurements (cont.)
Measurement Description
Area Area measurement is a voltage over time measurement. It returns the area over the
entire waveform or gated region in volt-seconds. Area measured above ground is
positive; area measured below ground is negative.
Cycle Area A voltage over time measurement. The measurement is the area over the first cycle
in the waveform or the first cycle in the gated region expressed in volt-seconds. The
area above the common reference point is positive, and the area below the common
reference point is negative.
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 rightmo st nonzero bin minus the time of the leftmost
nonzero bin.
Histogram Max
Displays the voltage of the highest nonzero bin in vertical histograms o r the time of the
rightmost nonzero bin in horizontal histograms.
Histogram Min
Displays the voltage of the lowest nonzero bin in vertical histograms or the time of the
leftmost 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.
MDO4000 Series Oscilloscopes User Manual 125
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