Chapter 4 Angular Measurements
Mounting and Aligning the Optics on the Target Machine
4-16 Measurements Reference Guide
Aligning the optics
To align the optics, follow these steps:
1 Set the laser head’s upper port to the small aperture by turning the upper
aperture control (Figure 2-13 in Chapter 2).
2 Rotate the target into position on laser head’s lower port by turning the
lower aperture control.
3 Set the laser head’s turret ring to OTHER.
4 Attach a target to the interferometer on the side facing the laser head so
the target’s cross hairs are below the target’s hole and the edges of the
target line up as evenly as possible with the edge of the interferometer
(Figure 4-12).
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