HP 5528A User Manual

Model 5528A
Stra ightn ess MeasuremenfS ( Along A Hori zo nt al Axis)
1 2. Select the sma ll ape rtur e for the laser H ea d's exit port and repeat step " 11 ".
13. Secure the R ef lector asse mbly so it is square relative to the inco min g la se r beam within ± 5
degrees.
14. Reatta ch the !argetto the Interferometer so the hole in the Interfe r omete r 's targel is centered
around the b
ea m.
15 . You are n ow ready 10 align the laser to the machine's travel.
Review the "GUNSIGHT" mel hod of a li gnment in Section 15 of this User's Guide.
Your goa l is to adjust the la se r He ad to track the Optic's pr ogression al ong the tr ave l path,
while maint
ai ning the beam's near -end-of -travel position. You will do this by -
• Keeping the bea m in the sm all hole on the Int er f erometer target, to maintain the
beam's near-end -of travel position, and -
• K ee ping a two-dot pattern in line with the jun ction of the Re rte ctor 's mirrors, and
sy mmetri cal about ils slo tt ed openin g, 10 match the Opti c's tr ave l.
This will be a little different than aligning for Distance a nd Angular measurements, since
with these alignments you were
only w at ching one d ot relati ve to a tar ge t c ro ss h ai r.
16. M ove the Optics to the far end of trave l.
1 7. Rot ili le the la ser Head, verticall y ilnd horizontally, to keep the two dots lined up on the junction
of the Refl ector 's mirrors, and symmetri ca l about its sl otted open ing. ( See Figure 10-7.)
Sin ce th e daIs wi ll move apart as the Optics move, you ma y ha ve to hold a card on each side of
the Reflect or 's slot to fo ll ow their movement.
Figure 10 - 7. Two Dm s on the Reflector
10-11

HP 5528A Specifications

General

Brand	HP
Model	5528A
Category	Measuring Instruments
Language	English