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Model
5528A
Sira
igiliness
Measurements
(Along
A
Horizonta
l
Axis)
10-10
8.
Remove
th
e
target
from Ihe Interferometer.
9.
Select
the
large
aperture for
the
Laser
Head's exi
t
porI.
10.
ROlat
e
the
Interferometer's
bezel
unlillh
e
bezel's
scribe
lin
e
is
orient ed
90
degrees
to
th
e
slo
tt
ed
openin
g
in
the Straightness Ref
lector.
(See
Figure
10-5.)
Two beams
should
now
come
out
of the
Interferometer,
in
a p
lane
perpendicular to the
slotted opening
in
the
Reflector.
_ SCAIBE
LINE
6\
~
~
10774A
OR
10775A
STAAIGHTNESSINTERFEROMETER
Figure
10-5.
Im erferomcl
er
Bezel -
Scribe
Line
11
.
Position
th
e
Reflector
within 100
mm (4
inches) for
Short
Range measu rements
or
900 mm
(36
inches)
for Long Range
measurements of
the
Interferometer.
Position the
Reflector so
thai
the two daIS resulting from
step " 10"
are oriented along the
junction
of the
Straightness
Reflector's mirrors
and
are
symmetrical
about
the
mirrors'
slotted
open ing. (See Figure
10-6.)
Figure
10-6.
Inili,,/ Positioning of
R.
ef/eclar
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