GW Instek GDS-122 User Manual - Manual (Page 20)

Using the Oscilloscope
39
6B
Measurements
Overview The advanced measurement functions allow you
to automatically measure various parameters in a
waveform.
Measurement
items
• Waveform math
• Automatic measurements
• Time cursor measurement
• Voltage cursor measurement
page
158H
39
page
159H
41
page
160H
42
page
161H
43
33B
Running waveform maths
Overview The waveform math function runs mathematical
operations between CH1 and CH2 waveform, and
then shows the result in the display.
Math type • CH1 – CH2 (subtract CH2 from CH1)
• CH2 – CH1 (subtract CH1 from CH2)
• CH1 + CH2 (add CH1 and CH2)
• CH1 * CH2 (multiply CH1 and CH2)
• CH1 / CH2 (divide CH1 by CH2)
Panel operations 1. Make sure that both CH1 and CH2 waveforms
are shown in the display.
2. Press the MENU key and
select the WAVE MATH menu
using the Up/Down keys.
MENU WAVE MATH
3. Select the math operation from F1 (CH1 –
CH2) to F5 (CH1 / CH2) and press it.
CH1-CH2 CH2-CH1 CH1+CH2 CH1*CH2 CH1/CH2
F1 F2 F3 F4 F5
4. The math result appears in the display
(example: adding two square waveforms)
GDS-122 User Manual
40
5. To cancel the math result, press the function
key (F1 to F5) again.
Changing the
math result
position
1. Press the OSC OPTION key.
Make sure the following menu
appears on the display.
OSC
OPTION
– Time
– CHM Zero
2. Use the arrow keys to move the
math result position.
Changing the
math result scale
1. Press the OSC OPTION key
repeatedly until the following
menu appears on the display.
OSC
OPTION
– Time Base
– CHMath
Volts/Div
2. Use the arrow keys to change
the math result scale.
Saving or
recalling the
math result
The math result waveform can be saved into or
recalled from one of the four GDS‐122 internal
memories. See page
162H
53 for details.