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Model
5528A
Straightness
Measu
rements
11 -10
Figure
11-5.
Turning
Mirror
-
Orientation
5.
Mount
the Turning
Mirror
on its
base,
usinS
its
ca
ptive
screws,
such that
II
will
deflect the
laser beam upward
.
6.
Mount
the Vertical Siraishtness
Ki
t's Straightness
Retroreflector
where the
tool normally
mounts,
35
shown In figure
11-3.
Screw
the Interferometer into the large Re lroreflector, usinS the two
3
mm flathead
screws
provided
.
7.
Orient the Retrorefleclor
so
it overlaps thc Straightness
Reflector and
the Turning Mirror,
but
with the
Interfero
meter
over the Straightness
Reflector.
Fasten
the Re
lrorcflcctor
to the
mach
ine in such
a way that
the Interferometer
is as square
as
possible to the Reflector and
to
the incoming
beam.
The
Interferometer
hou sing
's
pitch
limitations are
.±2
degrees;
its
yaw and
roillimit31ions
are
±5
degrees.
The pitch and yaw
requirement
s
will be taken care of aUlOmalically by using
the
Straightness
Rc lrorefleclor
and
an
HP Post.
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