Basler raL2048-48gm Manuel d'utilisateur télécharger pdf (Page 141)

AW00118302000 Acquisition Control

Basler racer GigE 131

Fig. 46 and Fig. 48 illustrate the Frame Trigger Wait signal with exposure and readout overlapped.

The figures assume raising edge triggering and that the trigger mode for the acquisition start trigger

and for the frame start trigger is set to off, so the camera is internally generating acquisition and

frame start trigger signals.

Using the Line Trigger Wait Signal with the Timed Exposure Mode

When the camera is set for the timed exposure mode, the rise of the Line Trigger Wait signal is

based on the current Exposure Time Abs parameter setting and on when readout of the current line

will end. This functionality is illustrated in Fig. 47.

If you are operating the camera in the timed exposure mode, you can avoid overtriggering by always

making sure that the Line Trigger Wait signal is high before you trigger the start of line capture.

Line Acquisition N

Exposure

Readout

Time

Line Trig Wait

Signal

Line Acquisition N+1

Exposure

Readout

Line Acquisition N+2

Exposure

Readout

ExLSTrig

Signal

Exp. Time Setting

The rise of the Line Trigger

Wait signal is based on the

end of line readout and on the

current Exposure Time Abs

parameter setting

= Camera is in a "waiting

for line start trigger" status

Fig. 47: Line Trigger Wait Signal with the Timed Exposure Mode

1 2 ... 136 137 138 139 140 141 142 143 144 145 146 ... 237 238

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Basler raL2048-48gm Manuel d'utilisateur Page 141