Measurement Computing PCI-DAS6031 User Manual page 29

PCI-DAS6031 & PCI-DAS6033 User's Guide
Gate Negative Hysteresis
Data acquisition is enabled whenever ATRIG goes above the THRESH_HI level. Acquisition is suspended
whenever the ATRIG signal goes below the THRESH_LO level. The hysteresis level is set by THRESH_LO.
This is a level-sensitive gating mode.
+2
+1
0
-1
-2
Trigger
Acquired Data
+2
+1
0
-1
Gate Positive Hysteresis
Data acquisition is enabled whenever ATRIG goes below the THRESH_LO level. Acquisition is suspended
whenever the ATRIG signal goes above the THRESH_HI level. The hysteresis level is set by THRESH_HI.
This is a level-sensitive gating mode.
Trigger
Acquired Data
Figure 4-20. Gate Negative Hysteresis
+2
+1
0
-1
-2
+2
+1
0
-1
-2
Figure 4-21. Gate Positive Hysteresis
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Functional Details
Thresh_HI
Thresh_LO
Thresh_HI
Thresh_LO