Agilent Technologies DP235 Guía de usuario Pagina 170

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Using the Oscilloscope
The Scope Trigger Menu
Count field
The Count field defines the number of trigger events that must occur
after the first trigger qualifier before the oscilloscope will trigger and
acquire a waveform. In edge trigger mode, you can define a positive or
negative edge and the trigger level as a trigger qualifier. When the
oscilloscope detects the trigger qualifier, it will trigger at a user-
specified number of edges (Count field) on the waveform. Count can
be set to any integer from 1 to 32,000.
This type of triggering is commonly referred to as "events triggering" or
"delay-by-events triggering". It is very useful when trying to trigger on a
specific pulse in a burst of pulses, with a long time delay, before the
next burst occurs.
The default value for the Count field is 1.
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