Principle of the Setup
Even though every PrismMaster® is adapted
to specific accuracy and application requirements,
the principles of the setup and function
are the same for all of them.
The main components of PrismMaster® instruments
are: a high-precision rotary table, an
angular sensor (encoder), the measuring
head with an electronic autocollimator, a
CCD camera, and light source and of course
The sample table is mounted on a ball bearing
or air bearing and is moved into the exact
position needed either manually or by a motorized
drive. In particular for the exact determination
of pyramidal errors, the units with air
bearings are the optimum choice.