M
ode
l 5528A
Measurements
Us
in
g a Plane
Mirr
or I
nt
e
rf
eromet
er
D-S
3.
In
se
rt
the plane mirror i
nt
e
rf
erometer
int
o
th
e laser beam and fasten 10
th
e mo
unL.
4.
Bl
ock the
int
erferometer output beam.
Se
lect the s
mall
aperture of the laser head and
the target on the r
ece
iver. Adjust the
int
e
rf
erometer and the laser hcad
(ve
rti
cal and
horizontal
Lr
ansla
ti
on o
nl
y)
to get the reference return beam centered on the receiver.
5.
Remove the beam bl
oc
k from the inte
rf
erometer o
utpuL.
Adjust the inte
rf
erometer to
get both the reference and measurement return beams to ove
rl
ap on
th
e ce
nt
er of the
receiver.
6.
Check the a
li
gnment for cos
in
e e
rr
or. See page 6-14 for the procedure.
7.
Sel
ec
t the large aperture on the laser head a
nd
rotate the receiver target out of the
beam path.
Distance Measurements
Di
stance measurements u
si
ng a
pl
ane mirror Inte
rf
erometer are made the same way as v.ilh a
lin
ear
int
e
rf
erometer, except th
at
the plane mirror interlerometercannot
be
the moving optic.
Re
fer to Sec
ti
on
6,
Di
stan
ce
Measurement
s,
for
Inf
o
rm
a
ti
on about measureme
nt
di
splay set-
ting
s,
sensor use, ma k
in
g a measurement, and what a
ff
ects accura
cy.
Velocity Measurements
Veloc
it
y measureme
nt
s us
in
g a plane mirror
int
e
rf
erometer are made the same way as with a
li
near i
nt
e
rf
erometer, except tha
tl
he plane mirror interler
om
eter can
not
be the moving
opt
ic.
Refer Lo Secti
on
6,
Di
stan
ce
M
ea
surements, and Sec
ti
on
7,
Ve
l
OC
it
y Measu
re
ments, for
inf
or-
ma
ti
on about m
eas
urement
di
s
pl
ay settin
gs,
sensor usc, making a measurement, and what af-
fects accuracy.
Th
e
limit
ing
fa
clor
in
the accuracy of vel
OC
ity
measurements
is
the accuracy of
the el
ec
tronics
in
the velocity measurement
ci
rcuitry.
/
II
1070eA
HP
5
518A
LASER
HE
AD
ST
AGE
F
igu
re 0 -
5.
M
easurement
Se
t
up
SERIES 2732A
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