Newcon Optik LRF MOD 4EC - Manual (Page 26)

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6. BEST MEASURING TECHNIQUE
Laser range finder module measures distance by catching a laser
beam reflected from the target. Everything that improves
reflection increases the measurement reliability and maximum
range.
1. Aim at a surface on the target that is closest to the
perpendicular to the laser beam. The closer you get – the
stronger will be the reflection.
2. The unit deploys sophisticated software that tries to
understand which target you are aiming at. However, due to
beam divergence several objects may produce a strong
reflection. To help the system recognise the target the Target
Selection Logic may be used. For example, if ranging a wire
in front of a building, selecting the “first” target (Code 12)
will produce a more reliable result. Alternatively, when
aiming at a chimney behind the trees, selecting “last” target
(Code 11) will be better. By default the System assumes
“auto” target selection, that is, the object producing the most
reflections will be considered a target.
3. Another way to improve reliability of measurement is to use
the gating mechanism. When gating is active reflections
from all objects closer than the gating distance will be
ignored. This is especially effective when ranging in
unfavourable atmospheric conditions, that is, in the rain, fog,
haze or bright sun. Gating provides better results than the
“last” target selection, but it requires preliminary rough