User`s manual

Spatial Correction on Color Cameras AW00049313000

142 Basler runner

Conveyor Travel

The conveyor must travel in a straight line. If the conveyor motion is not straight, each line in the

sensor will scan a different area of the object as shown in Figure 57. This situation will cause

haloing that is perpendicular to the transport direction. The halos will vary in size and color.

Fig. 57: Conveyor Travel

Object Height Differences

If the objects on the conveyor strongly differ in height, the lines in the sensor will view a short object

from a different perspective than they view a tall object. To make sure that all objects are in

perspective even if they strongly differ in height, use of a telecentric lens setup is recommended. A

telecentric setup usually requires high illumination.

If the objects strongly differ in height and a telecentric setup is not used, haloing will be seen in the

areas where sharp height gradients are present.

Yes No

Sensor

Conveyor