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To Trigger the Oscilloscope
For triggering, set your trigger conditions according to the requirements, and when a
waveform in the waveform stream meets this condition, the oscilloscope captures the
waveform and displays it on the screen. The trigger circuit ensures that every
acquisition centers around the user-defined trigger condition.
The following is the schematic diagram of the acquisition memory. As shown in the figure
below, the position of the trigger event is determined by the reference time point and the
delay setting.
Trigger Event
↓
Pre-trigger Buffer
Post-trigger Buffer
Acquisition Memory
Trigger settings should be based on your requirements and the features of the input
signal, thus you need to have some knowledge of the signal under test to quickly capture
the desired waveform.
The oscilloscope provides numerous advanced trigger functions which can help you
focus on the desired waveform details. These trigger types are edge, slope, pulse,
video, window, interval, dropout, runt, pattern and serial trigger. This chapter will
introduce all these trigger functions and tell you how to set the trigger conditions to
capture the desired waveform.
52 User Manual
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