6212C Manual Version 15_22 Rev 07-19.docx
Page 32 of 53
Typical Spreadsheet Alignment Curve Showing Specular Centered on Detector 7
5) Determining Alignment using the Lasercheck Alignment Graph Excel Spreadsheet
Vertical Alignment
The Vertical portion of the alignment graph is a horizontal bar graph representing relative voltages from all of
the 35 detectors. The largest bar on the graph is the specular reflection. There are 5 detectors in the center of
the first eleven that are color coded
yellow
and
green
. Ideally the fixture should be positioned so that the large
specular reading is on the
green
detector 6. Acceptable performance will be achieved if the large specular
reading is on one of the
yellow
detectors 4, 5, 7, or 8. Note in the example graph above that specular is centered
on the
yellow
detector 7, which is an acceptable, but not quite perfect alignment. If the large specular reading is
on one of the
red
detectors, Lasercheck will not perform accurately.
If the largest reading is below the
green
detector 6 on the graph, then the head/fixture combination should be
adjusted so that the surface is moved further away from the head. If the largest reading is above the
green
detector 6 on the graph, then the head/fixture combination should be adjusted so that the surface is moved
closer to the head.
Horizontal Alignment
The Horizontal label of the alignment graph is a number shown in the lower portion of the graph labeled
“HORIZONTAL ALIGNMENT VALUE = 12345”. This is the “sum_voltage” value. There is no “perfect” number for
this value. It depends on material, size of surface, and many other factors. The idea is to take several
Lasercheck Alignment Data
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
D
e
te
c
to
r N
u
m
b
e
r
Detector Voltage
HORIZONTAL ALIGNMENT VALUE = 5.575