AGC motorized mechanical goniometers are used in applications
where 90 degrees of angular travel is needed with the payload
at the center of rotation, or where two axes of rotation are needed
about a common point. AGC goniometers are designed to be mounted
to standard optical tables, as well as standard Aerotech rotary
stages, to provide roll, pitch, and yaw about a common 3-axis
intersection. This flexible stage series is ideal for optical
alignment, payload tip/tilt, beam steering, sensor calibration,
laser applications, automated manufacturing and/or testing, and
multi-axis diffractometer systems.
Construction Features
The sizes within the AGC family are designed to be mounted on
one another to form a three-axis rotary system with all three
axes of rotation sharing a common intersection point. This allows
compact pitch/roll/yaw systems to be created easily from a standard
stage platform and without special adapter plates or mating fixtures.
The drive mechanism for AGC stages is a precision gear and matched
worm that are preloaded to reduce backlash. All AGC stages include
optical limit switches and hard stops to define a ±45 degree
range of travel. Innovative linear feedback technology yields
stable performance and negligible performance drift over the life
of the stage. This is in stark contrast to inferior designs that
must be continually adjusted to compensate for worm wear. All
stage tabletops feature hardcoated aluminum, with stainless-steel
Heli-Coil® inserts to prevent thread wear.
Flexible Options
Options include flexible motor selections as well as a direct
encoder mounted along the stage travel to offer outstanding repeatability
and to minimize hysteresis and backlash. Vacuum-compatible versions,
for use in pressures as low as 10-6 torr, are also
available.
Motor and Drives
Standard AGC stage configurations feature Aerotech’s brushless
servomotors. However, all AGC goniometers can be outfitted with
stepper or brushed motors, as well. A full range of matching drives
and controls are available for a complete single-source solution.
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