Chapter 7 Squareness Measurements in a Vertical Plane
Positioning the Laser Head and Target Machine
7-6 Measurements Reference Guide
Figure 7-3. Set Up Laser: SQUARENESS screen
Positioning the Laser Head and Target
Machine
In squareness measurements, you measure the perpendicularity between
two axes. You do this by making a straightness measurement along each
of the two axes. The first axis measurement is a straightness
measurement along a horizontal axis (Figures 5-3, 5-4, and 5-5). In this
measurement, you use a reflector assembly and an interferometer
assembly. The second axis measurement is a straightness measurement
along the axis perpendicular to the first axis. In this measurement, you
use the reflector assembly, an optical square/turning mirror assembly,
and an interferometer/retroreflector assembly (Figure 7-9).