HP 5528A

Model 552 8A
Squareness Meas urements (In it Vertic al Plane)
13 ·2
(
START )
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Vertical St r il ightness Measurement, along a vertical a xis using an Optical Square, a Turning
Mirror, and a
St ra ishlness Relroreflect or
t
Removc c)(t ra Op tics, Mo ve la ser sl ig h tly, Don'l move Straightness Refl edo r
Ve rt ic al Straightne ss Measurement, along a ho ri zo nt al a)(is
Co mpare Re s ult s; Compute Squareness
+
C~--,E:....NO_~)
Figure 1J-1. Straightn ess Measurement - fl ow Diagram
HARDWARE REQUIRED
In addition to the hard wa re requir ed for any measurement using the laser Measurement Sys tem
( see f i gure 4-1), any ve rtical Squarenes s measurement requires the hard wa re sh ow n in figure 13 -
2. This hardware is the
same as that r equired for a Straightne ss meas urement , plus an Optical
S
quare and its Mount, a Turning Mirror, and a S tr aightne ss Relrorefl ec l or .