• Continuous
360° rotation of azimuth and elevation including built-in slip ring
• High accuracy angular position and rate capability
• Direct-drive brushless servomotors result in zero backlash
• Cog-free design for outstanding velocity stability
• Accommodate loads up to 600 mm diameter
• Low maintenance and high reliability provide the lowest cost of ownership
Aerotech's AMG position
and rate gimbal mounts provide ultra-precise angular position, rate, and acceleration
for development and production testing of a wide range of systems. The AMG series
is ideal for directing optics, lasers, antennas, and sensors at high speed to
very precise pointing angles. Typical applications include missile seeker test
and calibration, LIDAR, electro-optical sensor and FLIR testing, airborne targets
tracking, optical testing of space-based sensors in a vacuum, and angular testing
of inertial sensors such as gyros, MEMS, accelerometers, and inertial reference
units. The AMG gimbal design incorporates recent Aerotech rotary stage design
improvements to provide high performance at an affordable price. The finest
quality motors, bearings, and encoders are integrated into precision-machined
housings to ensure peak performance. The AMG position and rate gimbals provide
precise angular motion with the high performance customers expect from Aerotech
products.
Accurate 360°
Positioning and Rate Generation
Direct-drive brushless torque motors, with rare-earth magnets and high-accuracy
angular transducers, are coupled directly to precision shafts for accurate and
smooth 360° continuous motion. The absence of gear trains and other drive
mechanisms eliminates position error contributions due to mechanical hysteresis
and backlash. Directly coupled high-resolution position transducers ensure highly
accurate and repeatable positioning.
A wide-range of performance
feedback grades is available. Typical line gimbal resolution ranges from 1.0
to 0.13 µrad with Aerotech controls. The built-in azimuth slip ring provides
for continuous rotation with no cable wrap up.
Direct-Drive Motors
for Outstanding Control
To maximize positioning and velocity performance, AMG gimbal mounts utilize
Aerotechs high torque S-series brushless, slotless servomotors. These
motors have all of the advantages of a brushless direct-drive motor
no brushes to wear, no gear trains to maintain, and high acceleration and high
speeds. Since it is a slotless, ironless design, there is zero cogging, meaning
that there is absolutely no torque ripple. This results in smoother motion throughout
travel and more precise positioning. These motors are available in different
winding configurations to work with high or low voltage power supplies.
Superior Mechanical
Design Features
Large diameter, matched-set ABEC-7 bearings maximize performance with respect
to wobble, moment stiffness, and rotating friction. The large diameter bearing
permits large payload capacity without compromising performance. Casting gimbal
yokes provide high stiffness to maintain gimbal accuracy under dynamic conditions.
Travel limits, hard stops, and brakes are available as standard options.
Mirror and Alternate Payload Accommodation
A variety of mirror cell diameters are available for standard optic applications.
We also provide for custom payload attachment solutions to accommodate various
device interfaces. Each gimbal mirror cell can be modified or replaced with
different shaped cells to accommodate sensors or other odd shaped payloads.
We understand customer payloads vary and our engineers have a variety of solutions
to implement offset CG payloads. |
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