External Light; Mechanical Vibrations; Surface Roughness - MICRO-EPSILON scanCONTROL 29 Series Operating Instructions Manual

Operation of the Sensor with a PC
6.5.4
An interference filter in the sensor is present for suppression of external light.
In general, the shielding of external light directly emitted on the target or reflected in the sensor must be
ensured using protective covers or similar.
Pay particular attention to unwanted reflections of the laser line outside the measuring object range (back-
ground, object holder or similar) which can be reflected back again into the view area of the receiver.
Matt black surface coatings are recommended for all objects outside the measuring range (object holders,
transport apparatus, grippers or similar).
6.5.5
If high resolutions in the µm range should be achieved with the sensor, particular attention must be paid to
stable or vibration-damped sensor and measuring object mounting.
6.5.6
Surface roughness of 5 µm and more results in "surface noises" due to interference of the laser light.
Direct reflections of the laser light to the receiver can also occur at the finest grooves (e.g. abrasion marks
on the surface) particularly if these run in the line direction. This can result in inaccurate measured values.
Prevention of this effect might be possible by adjusting several sensor settings e.g. filters.
scanCONTROL 29xx

External Light

Mechanical Vibrations

Surface Roughness

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