B+K precision 2510B Series, User Manual, Page: 52 / 184

Trigger
This chapter introduces the available trigger types as well as the configuration of triggers.
5.1 Trigger Source 53
5.2 Trigger Mode 54
5.3 Trigger Level 56
5.4 Trigger Coupling 57
5.5 Trigger Holdoff 59
5.6 Noise Rejection 60
5.7 Trigger Type 61
5.7.1 Set Trigger Type 61
For triggering, certain condition can be set according to the requirement and when a waveform in the
waveform stream meets this condition. Digital oscilloscope, display a waveform continuously regardless
of the trigger stability, but only a stable trigger 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.
Figure 5.1 demonstrates how the position of the trigger event determines the reference time point and
the delay setting.
Figure 5.1 Acquisition Memory
A trigger setup tells the oscilloscope when to acquire and display data. Trigger setting are based on the
features of the input signal, therefore knowledge of the signal under test is required to quickly capture
the desired waveform.