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Rotation stage

Last modified by fwilde on 2020-02-13 09:24

Overview

The rotation stage is built by Aerotech and consists of a precise air bearing rotation stage (ABRT-260) in the center, a less precise roller bearing rotation stage (ALAR-325) which carries a slip ring and can only be operated in slave mode with the inner rotation stage, a tripod to lift (in z-direction) or tilt the rotation axis and an air bearing linear stage to move the rotation stage sideways (in x-direction). Integrated in the inner rotation stage is the sample stage, a piezo stack with 5 degrees of freedeom to align the sample w.r.t. the rotation axis.

Information
Sample height

Together with the z-displacement of the base stage and camera stage, a sample can be mounted up to ~180 mm above the top surface of the rotation table and still be brought into the beam.


p05_uct_rot.png

Motion

The coordinate system is defined in the sketch above - rot_x, rot_y and rot_z refer to rotations around the x, y and z axes respectively.

direction

travel range

x

+/- 100 mm

y

-

z

+/- 50 mm

rot_x

1.5°

rot_y

1.5°

rot_z

endless