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RIGOL Chapter 5 To Trigger the Oscilloscope
5-10 MSO7000/DS7000 User Guide
Please refer to descriptions in "Trigger LEVEL/Threshold Level". The current
trigger level/threshold level value is displayed at the upper-right corner of the screen.
Pulse Trigger
Triggers on the positive or negative pulse with a specified width. In this mode, the
oscilloscope will trigger when the pulse width of the input signal satisfies the
specified pulse width condition.
In this oscilloscope, positive pulse width is defined as the time difference between
the two crossing points of the trigger level and positive pulse; negative pulse width is
defined as the time difference between the two crossing points of the trigger level
and negative pulse, as shown in the figure below.
Figure 5-3 Positive Pulse Width/Negative Pulse Width
Trigger Type:
Press Type, and then rotate the multifunction knob to select "Pulse". Press
down the knob to select the trigger type. Then, the current trigger setting
information is displayed at the upper-right corner of the screen, as shown in the
figure below. You can also press the Type key continuously or enable the touch
screen to select the desired trigger type.
Source Selection:
Press Source to open the signal source list and select CH1-CH4 or D0-D15. For
details, refer to descriptions in "Trigger Source". The current trigger source is
displayed at the upper-right corner of the screen.
Note: Only when we select the channel (that has been input with signals) as the
trigger source, can we obtain a stable trigger.
Trigger
Level
Trigger
Level
+Width
A
B
-Width
A
B
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