Aerotech’s ARMS series direct-drive rotary motion simulators
provide superior angular rates, accelerations, and positioning for the testing
of inertial components and systems such as MEMS, gyroscopes, inertial measurement
units, avionics, and accelerometers.
Accurate Velocity and Positioning
The ARMS family of stages provides excellent velocity and positioning control.
When coupled with Aerotech’s advanced controls, resolution can be as fine
as 0.02 arc second, with accuracy to ±2.5 arc second and repeatability
to ±0.5 arc second. The motor and high-performance rotary encoder are
directly coupled to a common shaft. The absence of gear trains and mechanical
couplings means no position errors caused by hysteresis, windup, or backlash.
The ARMS has rate resolution down to 0.002 deg/s and rate stability to 0.0001%.
Superior Mechanical Design
Dual large-diameter bearings are used to maximize performance with respect to
wobble, moment stiffness, and repeatability. The large diameter bearings permit
large payloads without compromising performance.
Brushless Direct-Drive
The ARMS series utilizes Aerotech’s S-series brushless, slotless motor
to maximize positioning performance. The S-series motor provides 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. The slotless,
ironless design eliminates cogging and, therefore, produces absolutely no torque
ripple. With its low inherent inertia and optimized motor design, the ARMS is
capable of speeds and accelerations that are significantly higher than competing
products. Low inertia and zero backlash make the ARMS the ideal solution for
applications requiring frequent directional changes.
Flexible Configurations
Slip rings and rotary unions are standard options available to ease integration
of customer devices.
Advanced User-Friendly Controls
Aerotech rate tables are controlled with state-of-the-art Aerotech controls
and drives. Our software packages are available as stand-alone applications,
where no other language or compiler is needed, as well as LabVIEW®, C, and
.NET software interfaces. Users can graphically generate their own motion profiles
and execute them automatically with Aerotech’s new GUI Motion Designer
software. Or, for users who already have their own motion simulation software,
our software can easily accept files with arrays of velocity, position, and
acceleration versus time profiles. This is then downloaded and run on the ARMS
by our motion control software.
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