SICK Ranger3

Figure 38: 3D image, no laser reflectance
Figure 39: 3D image with laser reflectance
8.2.5.4.1 Setting exposure time using reflectance
Use the reflectance image as an indicator when adjusting the exposure time:
•
If the exposure time is too low, the objects in the reflectance image contain dark
regions or regions with missing data. See figure 40.
•
If the exposure time is too high, the objects contain bright saturated areas and
artefacts. See figure 42.
Figure 40: Low exposure
time
Figure 41: Normal exposure
time
Figure 42: High exposure
time
8.2.5.5 Enabling HDR imaging
Workflow step: Image, Data collection
To enable HDR imaging:
1. Open the Parameter editor and select the AcquisitionControl category.
2. Set MultiSlopeMode to PresetSoft, PresetMedium or PresetAggressive.
°
PresetSoft increases the dynamic range by a factor ~2.
°
PresetMedium increases the dynamic range by a factor ~6.
°
PresetAggressive increases the dynamic range by a factor ~15.
NOTE
Using HDR affects the maximum exposure time:
•
In Areascan (2D) mode, the maximum exposure time for PresetSoft, Pre‐
setMedium and PresetAggressive is about 16, 40 and 100 ms, respectively.
•
In Linescan (3D) mode, the maximum exposure time for PresetSoft, PresetMedium
and PresetAggressive is about 4,10 and 26 ms, respectively.
OPERATION 8
8020774/14IM/2019-07 | SICK O P E R A T I N G I N S T R U C T I O N S | Ranger3
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Subject to change without notice