Scientific SMO1000A-S, User Manual

Page: 106 / 176

User Manual SMO1000A-S
106/176
To Make Math Operation
The oscilloscope supports many math operations between analog channels and
reference waveforms, including addition (+), subtraction (-), multiplication (*), division (/),
differential (d/dt), integral (
∫
dt), square root (
√
). The resulting math waveform is displayed
in white and labeled with “M”. You can use cursors to measure it.
The contents of this chapter:
Units for Math Waveforms
Math Operators
To Adjust the Math Waveform Scale and Offset
Units for Math Waveforms
Use the channel function menu to set the unit of each channel to
―
V
ǁ
or
―
A
ǁ
. The
oscilloscope’s math operation includes units as below:
Math Operation Unit
Addition (+)or subtraction (-) V, A
multiplication (*)
V
∧
2, A
∧
2 or W (Volt-Amp)
division (/) None or S
FFT dBVrm, Vrm, dBArms, Arms
differential (d/dt) V/S or A/S (V/second or A/second)
integral (
∫
dt) VS or AS (V/second or A/second)
square root (
√
) V
∧
1/2 or A
∧
1/2
Note: if the analog channel or the math function is cut off (waveforms do not display
on
the screen completely), the resulting math will also be cut off.