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Model 5528A
Angu
lar
Measurements
(AESOL]
There are only
two choices for this
key
in
this
measurement
mode.
Resolution
can
be
ex
tended
only
to
0.1 arcsecond.
Therefore,
push
-
0
8
for
" tenths" reso lution,
or
-
push -
8
( RESOj
fo'
"
un
ilS"
"
"olulion.
This key
also allows
you to
"s
mooth
"
your data
by
entering a
positive
number. A
negative
resolution
number
wll
remove
any
smoothing.
Smoothing
redu
ces
the
effects of
vibratio n.
MAKING A MEASUREMENT
System
Checks
1.
Make
sure both laser
Head
ports are
switched to their
large apertures.
2.
The
laser
Head turret must be set
to
"OTHER
".
3.
The laser
Head's
READY indi cator must
be
lighted steadily
(I.e.,
not
blinking).
4.
Make sure you
are
properly
interfaced with other
instruments
as
needed
to
record
your
data.
a.
If you record your data
manually, no
interfacing
is necessary.
b.
If
you want
to
record your data
automatically,
but you
aren't
using
the
HP Dimensional
Metrology Analysis
System or another
HP-IIJ
controller,
you
must
have
an HP-IB
compatible printer
co
nneded to the Measurement Display unit
,
via the rear panel HP-IB
connector.
You mu
st
also
make
sure
the Measurement
Display
i5 set-up
to output
to a
printer
via
'·W-IB.
See
Sed
ion 18
and
follow the
instructions
for
"
Data Transfer
without
an
HP-IB
Controller".
c.
For formallcd automatic
records,
you should
have
the HP
Dimensional Metrology
Analysis
System
or all
HP-
1I3
cont
roller with
you
r
own programs to
make
it wor
k
with
the
laser
Measuremen
t
System.
The
HP
Analysis
System
comes
with
an HP
Personal Compu
ter
and
programs
to
make
it work with
the
l aser
Measurement System.
The
operating
manual for
the
Analysis
System will
explain how to use
it.
In
either
case,
you must first make
sure
the
Measurement
Display is
set-up to
accept a
controller
via
HP-IB.
See Sedion
18
and
follow
the instru
ctions
for
"
Data Transfer
with
an
HP-
IB
Cont roller"
.
Procedures
Two different measurement
methods are
available. You
can
have
your system
make
measurements
-
•
only
at
points
you
specify,
or
-
•
automatically.
at the
time
interval
you
specify,
without regard
to
the location of
the
Optics.
8-17
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