Omega OMB-DAQ-54 User Manual page 59

The Trigger Section
The following figure depicts the parts that make up an acquisition. Together, the pre-trigger and
post-trigger make up a trigger block.
Pre-trigger
By duration or number of scans
As can be seen in the previous figure, it is relatively simple to configure an acquisition. Tabs allow you to
select each of the three trigger aspects (Trigger, Pre-Trigger, and Post-Trigger) for configuration.
Averaging
The "Averaging" section of the dialog box is used to enable a block averaging mode and to select the size
of the scan block. Block averaging is enabled by using the Type list box (available selections are None or
Block Averaging). Averaging is available in scan blocks of 2, 4, 8, 16, and 32. The block number is
chosen from the Count pull-down list. When enabled, the selected block averaging is applied to each of
the scan group's analog input channels. Note that programmers can enable averaging via the
daqAdcSetFilter
to
daqAdcSetFilter
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Trigger
Post-trigger
by duration, number of scans,
or manual stop
Trigger Block
Configure Acquisition
function with filterType set to
in Appendix B.
989394
Stop Event
time
. For additional information you can refer
DaftSWAvg
Personal Daq User's Manual