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ACTION
MOVE TO
FAREND---------------r~
OF TRAVEL
TILT
REFLECTOR
--------------+1(""
-- --
--
-
MOVE TO
...
NEAR END
-------------=ti~~
OF
TRAVEL
_ - -
---
TRANSLATE _ _ _ _ _ _
_
INTERFEROMETER---------- _~-~~<[
OR
REFLECTO
R
_ _
-
-
ModeJ
SS28A
Strai
gh tness
MeasuremenlS
RESULTS
LASER
SYSTEM
_ _
-
INDUCED
SLOPE
Vo
PERPENDICULAR BISECTOR NOT
DIRECTED ALONG TRAVEL
PATH.
NEW SLOPE
VN
PERPENDICULAR BISECTOR DIRECTED
ALONG OTHER SIDE OF TRAVEL PATH
.
ORIGIN
NOW
OFF
AFTER ANGULAR
ADJUSTMENT
PERPENDICULAR BISECTOR NOT
CENTERED
IN INTERFEROMETER
ZERO OUT
ORIGIN
POINT
PERPENDICULAR BISECTOR CENTERED IN INTERFEROMETER
AND
DIRECTED ALONG TRAVEL
PATH
Figure 11-10.
Removing
Slope
1'
-19
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