Preshoot; Average - Keysight Technologies InfiniiVision 2000 X Series User Manual

14
Measurements

Preshoot

Preshoot is distortion that precedes a major edge transition expressed as a
percentage of Amplitude. The X cursors show which edge is being measured (edge
closest to the trigger reference point).
Rising edge preshοot =
Falling edge preshοot = Base − D local Minimum

Average

Average is the sum of the levels of the waveform samples divided by the number
of samples.
Average =
Where x
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 cursors show what interval of the waveform is being measured.
212
local Maximum − D Top

Preshoot

local Maximum
local Minimum
Preshoot
∑ x
i
n
= value at ith point being measured, n = number of points in
i
Keysight InfiniiVision 2000 X-Series Oscilloscopes User's Guide
Amplitude
Amplitude
Top
Base
× 100
× 100