HP 5528A User Manual

Model 5528A
Squareness Mcasurcmenls (In a Vertical Plane)
13·12
c. Remove
the Interfer ome ter from the RelrorefJector.
d. Place the gageblo('k over the Optical Square's top s lot (s ee Figure 13·6;, ). The beam
should
st rike the gageblock and be reftected back towards th e la ser Head.
e. Adjust
the Turning Mirror so that the refle ded beam strikes the laser Head and is
ce ntered on its exit port.
NOTE
If you cannot position the Turning Mirror using the reflec ted
beam. continue with sleps "f", "g" and "h", and skip s tep "i ".
took at the top of the Optical Square, and adjust the Turning
Mirror
so thaI the two dots arc in line with the scribed line and
symmenical within the opening (s ee Figure 13~8 ).
f. Remove the gilgeblock.
g. Screw the Interferometer into the Re lr orefleclor.
h. Rotate the Interferometer bezel until ilsscribed line is oriented 90 degree s relative 10 the
Optical Square's slot.
i. look at the lap of the Optical Square. ;:md translate the laser Head unlilthe two dots are
in line with the scr ibed line and symmetrical within th e opening. ( See figure 13-8. )
If Ihe Optics arc very dose together, you should in se rt a piece of paper to see the dots.
NOTE
This proce ss will be impossible if the Optics were not positioned
well enough in step "11". If you have problems with this step, go
back
\0 step "11" and redo h.

HP 5528A Specifications

General

Brand	HP
Model	5528A
Category	Measuring Instruments
Language	English