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Model
5526A
Straigh tness
Measurements
tA long A
Horizontal
A)(is)
10-16
5.
AI the
near end
o
f
travel,
move Ihe Interferometer
or
the
Reflector
in a
direction
parallel
with
the
slolled
open
ing in the
Rerted or until
the Measuremen
t
Display
reads
zero.
tf
beam
stre ngth again gets
too
low,
turn the
laser
Head
10
regain adequate
beam strengt h,
and
translate
the
laser
Head to
prevent clipping
of
the beam
by the Interferometer.
6.
Repeat
step
"
1"
through step
"5"
as often
as
necessary
to
make
measurements
at
both ends
of
travel
come out
to
be
"
zero".
Measurements Alo
ng A
Perpe
ndicular
Axis
Perpendicu
lar
straightness
measurements
made
on other
horizontal
a)(es
should be made from
a
second laser
Head
set·
up
in
lin
e
with
thc new
all'is.
Straightness measurements
on vert
ica
l
perpendi cular
axes are
described
In
Ihe
next
seoion.
Figure 1()"9 and
Figure
70-
70
show
positioning of Strillghtness
Optics
on
three
different
all'cs. Two
l aser
Head
set·u
ps are
needed.
Othe
r
Mounting Require me nts
Although
we have
tried to provide
yo
u
wilh a
maximum
of
mounting fle)(ibi1ilY,
th
ere
may be
situatio ns w
hen
you need
more
capab
ilit
y.
For more information,
you should
turn
to
Appendix
C
for dimensions
of
the Opti
cs
and
the
mounting
hardware.
It
may
so metimes
be
impossi
ble
for
you
to
position the
Interferometer
between the
laser Head
and the
Straightn
ess
Refl ector
w
hil
e
at the same time mounting
th
e
Interferometer where
Ihe
tool
mounts
and
the Reflector
where
th
e
workpiece
mount
s.
In
these
cases,
you
should use the
Straightness
R~
l
ro
re
fl ect
or
(provided
in
the Straightness Accessory
Kit
)
to
make
you
r
measure·
menl.
(See Section
11
.)
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