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Installation
optoNCDT 1320
5.1.2.7
Angle Influences
Tilt angles of the target in diffuse reflection both around the X and the Y axis of less than 5 ° only have a
disturbing effect with surfaces which are highly reflecting.
These influences have to be explicitly considered when scanning profiled surfaces. Basically the angle be-
havior of triangulation is liable to the reflectivity of the measuring object surface.
Angle
X-axise
Y-axis
Fig. 6 Measurement errors through tilting with diffuse reflection
5.1.3
Optimizing the Measuring Accuracy
Color strips Direction of movement
Grinding or rolling marks
llaasseerr ooffff
iinn rraannggee
m
miiddrraannggee
eerrrroorr
ssttaattee
oouuttppuutt
sseelleecctt
In case of rolled or polished metals that are moved
past the sensor the sensor plane must be arranged
in the direction of the rolling or grinding marks. The
same arrangement must be used for color strips.
Fig. 7 Sensor arrangement in case of ground or
striped surfaces