Setting
Description
Standard
Finds the first peak in the region when searching from the top of
the region of interest and down.
Reverse
Finds the last peak in the region when when searching from the
bottom of the region of interest and up.
All relevant peaks must be above the given threshold value. The first peak is found
when
Search direction
is
Standard
and
Search mode 3D
is set to
FirstLocalMax
. The maximum
peak is found if
Search mode 3D
is set to
GlobalMax
. In this case the search direction is
not relevant.
3)
The last peak is found when
Search direction
is
Reverse
and
Search mode 3D
is set to
FirstLocalMax
.
z
x
z
a
b
Raw profile
Intensity along a-b
Threshold
Intensity
Reflections
1
3
First peak
Last peak
Maximum peak
2
4
5
6
7
8
Figure 36: Search direction and possible peaks to find.
1
Raw profile
2
Reflections
3
Intensity along a-b
4
First peak
5
Maximum peak
6
Last peak
7
Intensity
8
Threshold
8.5.3.2
WAM size
The size of Window Around Maximum (WAM) is used for high-resolution peak fitting. The
selected value should correspond to the laser peak width on the sensor.
If the laser peak is narrow, the selected
WAM size
should be small. If the laser peak is
wide, the selected
WAM size
should be larger.
0
0
5
10
15
20
25
30
WAM size
50
100
150
200
250
Laser peak position
0
0
5
10
15
20
25
30
WAM size
50
100
150
200
250
Laser peak position
1
1
3
3
2
2
Figure 37: Laser peak width and corresponding WAM size.
1
Laser peak position
2
Laser peak width
3)
If the image is heavily saturated causing a very wide peak, the Search direction will have an impact also in GlobalMax mode, shifting the
peak closer to the first peak depending on the Search mode 3D.
CONFIGURATION
8
8026049//2021-04 | SICK
O P E R A T I N G I N S T R U C T I O N S | Ruler3000
49
Subject to change without notice
