6212C Manual Version 15_22 Rev 07-19.docx
Page 33 of 53
measurements while incrementally adjusting horizontal position with fixturing to determine the highest possible
value for that part. Once that highest value has been achieved, then the fixture should be secured at that
location.
You must be sure to pass the head back and forth over the surface one or two times so that the maximum
possible value for sum_voltage can be found. Once it is found, then the head must be positioned to achieve a
value as close to that maximum as possible.
NOTE:
Do
not assume that the first reading is correct if the voltage seems “reasonably high”. Always move the
head back and forth to find and update a true maximum 100% value.
Notes to Using the Lasercheck Diagnostics Option for Alignment
Vertical Alignment
If the surface is relatively rough, the specular beam will be lost as it bounces off the surface into Lasercheck and
there will be no obvious large voltage anywhere in the array. Note on the graph below; this data is from a well-
aligned rougher surface, Ra of about 45 microinches.
Spreadsheet Alignment Curve of Example File on Rough Surface
Lasercheck Alignment Data
0.0
0.0
0.0
0.0
0.0
0.1
0.1
0.1
0
1
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5
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35
D
e
te
c
to
r N
u
m
b
e
r
Detector Voltage
HORIZONTAL ALIGNMENT VALUE = 1.584