User`s guide

6 Measurements and Math Functions
206 InfiniiVision Oscilloscopes User’s Guide
The following figure shows the voltage measurement points.
Amplitude
The Amplitude of a waveform is the difference between its Top and Base values. The Y
cursors show the values being measured.
Average
Average is the sum of the waveform samples divided by the number of samples over one
or more full periods. If less than one period is displayed, Average is calculated on the full
width of the display. The X cursors show what portion of the displayed waveform is being
measured.
Base
The Base of a waveform is the mode (most common value) of the lower part of the
waveform, or if the mode is not well defined, the base is the same as Minimum. The Y
cursor shows the value being measured.
Maximum
Minimum
Peak-Peak
Amplitude
Top
Base
Digital channel voltage measurements
Automatic voltage measurements are not valid on digital channels on the mixed-signal
oscilloscope.
Average =
x
i
n
---------
where x
i
= value at ith point being measured
n = number of points in measurement interval