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4.2 Acquisition Control
F
r a m e 1 F r a m e 2 . . . . F r a m e N
A c q u i s i t i o n S t a r t ( )
A c q u i s i t i o n A c t i v e
F r a m e A c t i v e
A c q u i s i t i o n S t o p ( )
A c q u i s i t i o n S t a r t T r i g g e r M o d e = O f f
A c q u i s i t i o n E n d T r i g g e r M o d e = O f f
F r a m e S t a r t T r i g g e r M o d e = O f f
F r a m e B u r s t S t a r t T r i g g e r M o d e = O f f
E x p o s u r e M o d e = T i m e d
Figure 4.3: Free-running Image Capture, when Acquisition Start and End Trigger Mode is Off
4.2.3 Acquisition Start Trigger
The acquisition start trigger can be used to control the acquisition start procedure. The main
property of this trigger is the trigger mode. It can be set to on or off:
Acquisition Start Trigger Mode = on As soon as the acquisition is started by executing of the
acquisition start command, the camera goes into the state "Acquisition Trigger Wait". In
this state, the camera can’t start capturing images; it waits for an acquisition start trigger.
As soon as the trigger has been received, the camera goes then into the state
"Acquisition Active" and is ready to capture frames.
Acquisition Start Trigger Mode = off As soon as the acquisition is started by executing of the
acquisition start command, the camera goes immediately into state "Acquisition Active"
and is ready to capture frames.
Fig. 4.4 shows an example when the trigger mode of the acquisition start trigger is on. The
acquisition status goes to acquisition trigger wait once an acquisition start command has been
executed. As soon as an acquisition start trigger has been arrived, the acquisition status goes to
acquisition active.
A c q u i s i t i o n A c t i v e
A
c q u i s i t i o n S t a r t
T r i g g e r 1
A c q u i s i t i o n E n d
T r i g g e r 1
A c q u s i t i o n
T r i g g e r
W a i t
A c q u i s i t i o n S t o p ( )
A c q u s i t i o n
T r i g g e r
W a i t
A c q u i s i t i o n S t a r t ( )
F
r a m e 1 F r a m e 2 . . . . F r a m e N
F r a m e A c t i v e
A c q u i s i t i o n S t a r t T r i g g e r M o d e = O n
A c q u i s i t i o n E n d T r i g g e r M o d e = O n
F r a m e S t a r t T r i g g e r M o d e = O f f
F r a m e B u r s t S t a r t T r i g g e r M o d e = O f f
E x p o s u r e M o d e = T i m e d
Figure 4.4: Free-running Image Capture, when Acquisition Start and End Trigger Mode is On
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