Table of Contents
Advertisement
Trigger
Trigger Overview
NOTE
: Trigger capabilities on channel 1-4 (i.e., the first acquisition module) are
more complete than on channels 5 or higher. Full Edge trigger bandwidth is
available on all channels, but SMART triggers are not available on Channel 5 or
higher.
Triggering is the way an oscilloscope selects an exact moment in time of a
signal to then be shown on the screen. If the signal pattern happens to be
repetitive, a continuous waveform pattern is visible on the display. But
without a regular signal pattern, the oscilloscope requires controls to
determine what specific point in time (when a trigger is met) to show the
signal on the display. This is accomplished and affected in a variety of ways.
Some trigger settings allow for pre-trigger, post-trigger, and a delay
between the time of the trigger event and the time when the display is
refreshed (or sweeped) and the waveform is again shown on the screen.
The instrument uses many waveform capture techniques that trigger on
features and conditions that you define. These triggers fall into the
following major categories:
Simple Triggers - activated by basic waveform features or conditions
such as a positive or negative slope, and hold‐off
SMART Triggers - sophisticated triggers that enable you to use basic
or complex conditions for triggering. Use SMART Triggers for signals
with rare features, like glitches.
Measurement Trigger - triggers that allow you to leverage parameter
measurements as waveform trigger conditions. A measurement
trigger is either the only trigger or the final trigger in a chain of
trigger events including hardware triggers.
MultiStage Triggers - varied forms of triggers including Cascaded,
QualFirst, and Qualified allowing varied combinations of triggers and
trigger stages.
Serial Triggers - provide serial data protocol specific triggering for a
wide variety of standards.
922561-00 Rev A
Getting Started Manual
79
Advertisement
Table of Contents
