Phase Overlapping in Line-Scan
Line-scan phase overlapping is allowed when the following conditions are met:
MultiCam Parameter |
Value |
Description |
Operation |
PAGE |
The line-scan channel is indented for acquisition of moving discrete object |
It is possible to trigger the scanning of the page before the end of the previous one. The scanning effectively starts after a programmable delay subsequent to the page trigger event.
TE is a shortcut for Trigger Event. In this particular case, TE represents the page trigger pulse.
The waiting phase duration is set by the adjust-level MultiCam parameter PageDelay_Ln.
The page delay corresponds to the distance the moving object has to travel to reach the axial position under the camera where it enters the field of view.
Successive objects to be scanned on the conveyor belt can be located close each other, while the position sensor generating the page trigger pulse can be installed way in front the scanning line.