Slope Trigger; Figure 8.6 Positive Slope Time/Negative Slope Time - Rigol DHO900 User Manual

Triggering the Oscilloscope
• In the When menu, when "< >" is selected, click or tap the input field of Upper
and Lower respectively to set the upper limit value and the lower limit value with
the pop-up numeric keypad. You can also use the corresponding multipurpose
knob to set the values. The lower limit of the pulse width must be smaller than
the upper limit.
Trigger Mode
In Sweep, select Auto, Normal, or Single as the trigger mode. For details, refer to
descriptions in
Trigger Parameter Setting
You can refer to
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.
8.7.3

Slope Trigger

Slope triggering sets the oscilloscope to trigger on the positive or negative slope of
the specified time. This trigger mode is applicable to ramp and triangle waveforms.
In this oscilloscope, positive slope time is defined as the time difference between the
two crossing points of trigger level line A and B with the rising edge; negative slope
time is defined as the time difference between the two crossing points of trigger level
line A and B with the falling edge. See the figure below.
Trigger Type
Click or tap the Type drop-down button to select "Slope".
DHO800 User Guide
70
Trigger Mode
.
Trigger Holdoff Noise Rejection
and
A
B
Positive Slope Time

Figure 8.6 Positive Slope Time/Negative Slope Time

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to set the trigger holdoff and
Upper Limit of Trigger Level
(Up Level)
Lower Limit of Trigger Level
(Low Level)
Negative Slope Time
Trigger