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HOW
TO
USE,
+
ACTION
NEW SITUATION
Model 5528A
Alignm ent
Techniques
r-=
ORIG INAL SITUAT
ION
tI
- - - - - - - -
INTERFEROMETER TARGET
HOLE
/ . /
REflECTOR
TAR GET
CAOSSHAIRS
1.
2.
3.
~LAS
__
E"~I
----- e-
~
~I
____
~I
-----
e-~
[
ORIG INAL SET-UP
NEW,
ORIGINAL
SITUATION
FROM
NO.
1
1-----
~
NEW
ORIGINAL SITUATION
FROM NO
.2
+
+
+
+
MOVE REFLECTOR
"------' 1
-
---~
TURN LASER HEAD
[
t
}----~
+
TRANSLATE LASER HEAD
- -
-
-
-
' - -------' 1
-----
~
LASER
BEAM
NO LONGER
HITS
CROSSHAIR
S
ON
REFLECTOR TARGET
[' - ------...J]
----
-2
LASER
BEAM
IN LINE WITH
REFLECTOR
CROSSHAIAS
BUT
NO
LONGER GOES THRU
INTERFEROMETER
TARGET
HOLE
+
, - - - - I
---...J}
----
0-
- -- -
--+
ALIGNMENT!
BEAM
GOES
THROUGH
INTER
FE
ROMETER TARGET
HOLE
&
HITS
REFLECTOR TARGET
Figure
15-1.
Gu nsighr
Alignm ent
Sequence
15·3
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