Pulse Width Trigger - Rigol DHO924S User Manual

8.7.2
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• Rising: triggers on the rising edge of the input signal when the voltage level
meets the specified trigger level.
• Falling: triggers on the falling edge of the input signal when the voltage level
meets the specified trigger level.
• Either: triggers on the rising or falling edge of the input signal when the voltage
level meets the preset trigger level.
TIP
When edge trigger is selected, you can also press the front-panel
edge type.
Trigger Mode
In Sweep, select Auto, Normal, or Single as the trigger mode. For details, refer to
Trigger Mode
descriptions in
Trigger Parameter Setting
Trigger Coupling
You can refer to
coupling, trigger holdoff, and noise rejection under this trigger type.
Trigger Level
Click or tap the Level input field to set the trigger level with the pop-up numeric
keypad. You can also use the front-panel trigger level knob or the corresponding
multipurpose knob to set the trigger level. For details, refer to descriptions in
Level
. The current trigger level is displayed in the trigger information label at the top
of the screen.

Pulse Width Trigger

Pulse width triggering sets the oscilloscope to trigger on the positive or negative
pulse of 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.
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15
10 20
5 25
0 30
.
Trigger Holdoff
, , and
key to switch the
Noise Rejection
to set the
Trigger
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