SIGLENT TECHNOLOGIES SDS2000X-E Series, Руководство пользователя

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SIG L ENT
52
SDS2000X-E
User Manual
Trigger
The trigger mode is the most useful setting to help isolate signals of interest. When a
waveform in the waveform stream meets the trigger condition, the oscilloscope captures
this waveform as well as the neighboring part and displays them on the screen. For digital
oscilloscopes, the waveforms will be displayed continuously no matter whether it is stably
triggered, but only stable triggers can ensure a stable display. The trigger circuit ensures
that every time base sweep or acquisition starts from the input signal and the user-defined
trigger condition, namely every sweep is synchronous to the acquisition and the
waveforms acquired overlap to display stable waveform.
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 settings should be based on 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 abundant advanced trigger functions which can help you to
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 mainly introduce
all these trigger functions which mentioned above in details and tell you how to set the
trigger conditions to capture desired waveform.
The contents of this chapter:

Trigger Source

Trigger Mode