HP 5528A User Manual

Model 5528A
Squareness Measurements ( In a Verti ca l Pl ane)
6. Pl ace the Ref lect or at the end of the horizontal axis you wil l measure when you make th e
measurement
along the second ax i s.
iI. Position the Reflec tor such that the t wo dots com in g fr om the Optical Sq ua re are
centered on the juncti
on between the Refl ecto r 's mirr ors and sy mmetri ca l about its
sl otted openin g. ( See Figure 13-10.)
If you ca n not get two do ts to strike the surface of the Reflector. re mo ve the
Inte
rf erometer from the Re lf oreflec lor a nd rcpeat th iS step with on ly one dol.
b. Secure the Re flector to the machine.
Figure
13- 10. Two dai S on th e Reflector
F in al Adju stments (After Aligning)
1. Se lect the small aperture for the la se r Head 's ex it port.
2. Rotate the Int erfcromc ter bezel until its sc rib ed lin e is parallel to the sl ol in the Optical
Sq ua re.
3. l ook at the si de of the Optical Square facing the Reflector. If you don 't see t wo dots, adjust
Ihe
Reflector Mounl's micrometer h ea d thai con tr ols hor izontal mot ion unt il both dots
a pp ea r on the side of the Optical Square.
a. Turn the Interferometer bezel until the daIS lin e up paraliel to the 51 01 in the Optical
Square.
b. Adjust the Reflector Mount 's vertical motion micrometer until both dots are symmetrical
about the scribed line at the center of the Op tical S qu are's s ial. (S ee Figure 13-11. )
13-15

HP 5528A Specifications

General

Brand	HP
Model	5528A
Category	Measuring Instruments
Language	English