Triggering 4
InfiniiVision 7000B Series Oscilloscopes User’s Guide 97
Triggering - General Information
A triggered waveform is one in which the oscilloscope begins tracing
(displaying) the waveform, from the left side of the display to the right,
each time a particular trigger condition is met. This provides stable
display of periodic signals such as sine waves and square waves, as well
as nonperiodic signals such as serial data streams.
The figure below shows the conceptual representation of acquisition
memory. You can think of the trigger event as dividing acquisition memory
into a pre- trigger and post-trigger buffer. The position of the trigger event
in acquisition memory is defined by the time reference point and the
delay (horizontal position) setting (see page 63).
Agilent InfiniiVision oscilloscopes provide a full set of features to help
automate your measurement tasks. MegaZoom technology lets you capture
and examine triggered or untriggered waveforms. You can:
• Modify the way the oscilloscope acquires data.
• Set up simple or complex trigger conditions as needed, to capture only
the sequence of events you want to examine.
See Also • “Segmented Memory” on page 234.
Trigger Event
Post-Trigger Buffer
Acquisition Memory
Pre-Trigger Buffer
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