Keysight InfiniiVision HD3 Series - Average; DC Rms

194 Keysight InfiniiVision HD3-Series Oscilloscopes User's Guide
14 Measurements
Average
Average is the sum of the levels of the waveform samples divided by the number of
samples.
Where x
i
= value at ith point being measured, n = number of points in
measurement interval.
The Full Screen measurement interval variation measures the value on all
displayed data points.
The N Cycles measurement interval variation measures the value on an integral
number of periods of the displayed signal. If less than three edges are present, the
measurement shows "No edges".
The X markers show what interval of the waveform is being measured.
DC RMS
DC RMS is the root-mean-square value of the waveform over one or more full
periods.
Where x
i
= value at ith point being measured, n = number of points in
measurement interval.
The Full Screen measurement interval variation measures the value on all
displayed data points.
The N Cycles measurement interval variation measures the value on an integral
number of periods of the displayed signal. If less than three edges are present, the
measurement shows "No edges".
The X markers show the interval of the waveform being measured.
Preshoot
local Maximum
local Minimum
Base
Top
Preshoot
Average =
∑
x
i
n
RMS (dc) =
∑
i=1
n
x
i
2
n