Reference Manual
Chapter
3
Ruler E
Configuring the Ruler
3.6
Measurement Components
The Ruler can use one of four different components, or algorithms, to find the position of
the laser line in the sensor image:
$
Horizontal threshold
$
Horizontal max
$
Horizontal max and threshold
$
Hi-res 3D (and Scatter)
This section contains a short description of each measurement component and the input
parameters that can be used.
The measurement resolution depends on both the measurement method as well as the
distance between the Ruler and the measured object. The resolution on different dis-
tances from the Ruler using the Hi3D and Horizontal threshold with 2 thresholds is shown
in the following figures.
0
0,1
0,2
0,3
0,4
0,5
0,6
400
450
500
550
600
650
700
750
800
850
900
HorThr
Hi3D
width
Resolution for Ruler E 600
Resolution (mm)
HorThr
Hi3D
Width
Distance from
Ruler (mm)
Resolution for Ruler E 1200
Resolution (mm)
0
0,25
0,5
0,75
1
1,25
1,5
1,75
2
300
500
700
900
1100
1300
1500
HorThr
Hi3D
Width
A very short and simplified description of the differences between horizontal threshold and
horizontal max algorithms is illustrated in the following figure.
Distance from
Ruler (mm)
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