HP 5528A

Figure 9-7
SUGGESTED ROUTINE FOR POSITIONING OPTICS
( See Pa ge 9- 11 )
Model 5528A
Flatness Measurements
9-12
WHAT AFFECTS ACCURACYl
Refer to Section 8, "ANGULAR MEASUREMENTS", for it description of potential error s, and how
to insure adequate accuracy, when using the Angular Op ti cs .
A build-up of dust or dirt on the measuring surface can cause error in your Flatness
measurement. Be sure to clean the measurement surface thoroughly.
If you move a Surface Pl ate to calibrate it. be sure you a ll ow its temperature to stabilize before
you measure
ils flatn ess.