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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