Chapter 5 Trigger System
41
(2) Grab the segment you want to observe from a fast and complex signal
Figure 5-3 Abnormal Signal in Periodic Signals
Figure 5-4 Abnormal Signal Captured by Setting Trigger Level
What is Forced Trigger?
When the oscilloscope does not meet the trigger condition, the artificial or automatic oscilloscope trigger is the
forced trigger. It means that the oscilloscope only grabs a signal segment for display regardless of whether the
condition is met or not.
Automatic forced trigger is set in the menu. In the trigger settings, there is usually a trigger mode option, which
can be set as “Normal” or “Auto”. Normal trigger means trigger after meeting the set condition. Automatic trigger
is a kind of forced trigger. The oscilloscope will be force triggered if it does not trigger for a certain period of
time.
