Mode
l 5528A
Angular
Measurements
RELATED
MEASUREMENTS
Fl
atness
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Section 9
REFERENCE
MATERIAL
Physical
Setup of Ihe laser Head and Tripod
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. . . Section 4
Interconnections,
Turn·on
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Section 5
Alignment
Techniques
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. Section
15
INSTALLATION
AND
ALIGNMENT
OF OPTICS
Important Considerations
1. The Angular Interferometer
must
be locatcd between the
la
s
er
Head and the Angular
Reflector
Ir,
the laser beam.
2. The beam from the
la
ser Head must enter the Angular Interferometer -
• through the single opening
on
one side. for
an
In·
lin
e measuremelll. or -
• through the opening in the
bOil
om
, for a measurement along
an
axis
perpendicular to
the laser bcam.
The side
of
Ihe Angular IllIerlerometer with
two
openings should always be facing the Angular
Reflector.
(
See
Figure 8·8 and Figure 8-9
.)
3.
Vibrations
and
loose connections must
be
minimi
zed by proper mounting. Avoid long
extension
s.
Make sure that all supports are completely statior,ary. A spindle, for example. must
be secured by a brake
so
it
won't rotate. (
If
a brake isn't available try using a hose
damp
or
a
wedge.)
4.
The
laser beam must be returned
to
the
bottom
port
on
the laser Head's turret.
5. The
Optics must be aligned
10
the
Laser
beam well enough to keep the Beam Strength indicator
in the green region along the entire optics' path.
6.
If
the Distance Optics
ha
ve previously been installed. you
can
install the Angular Optics by
simply changing the
OptiCS.
without
eh.m!:!!in!:!!
the
mounting
hardware.
7. The laser Head's turret ring should be
set
to "OTHER".
Description
1.
You
will initially position the Optics around the
Laser
beam while they are
at
the near end
of
travel using the
pro
cedures that
follow
.
2. Next, you will adjust the
Laser
Head
to track the Optic's progression
"Iollg
the travel path,
while
maintaining Ihe beam's near-end·of-travel poSition. (
See
" GUNSIGHT" alignment method
In
Section
15
of this User's Guide
.)
8-3