Teledyne SP Devices ADQ8-8C, Руководство пользователя

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17-2000 C
2020-09-17
13(50)
ADQ8-8C Manual
17-2000 C 2020-09-17
13(50)
4.2 Introduction
The digitizer can be triggered in various ways with a number of different internal and external trigger
sources. Selected events in the trigger module can also be output to trigger external equipment. The
selection of trigger source is illustrated in
Figure 4 .
4.3 Position of the trigger in the data
The trigger position relative to the data record is controlled by the parameters pretrigger and trigger
delay.
The pretrigger buffer enables capturing data prior to the trigger event,
Figure 5 . Use the command
Set-
PreTrigSamples
to define the pretrigger.
The trigger delay postpone the start of the acquisition of the data record specified number of samples
after the trigger event,
Figure 6 . Use the command
SetTriggerHoldOffSamples
to define the trigger
delay.
The timing of the trigger is read from the record header (
Section 7.9 ). The parameters
TIME_STAMP
and
RECORD_START
are explained in Section 4.4.1 .
Figure 5: Pretrigger timing.
Figure 6: Trigger delay timing.
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