A multi-class, two-axis rate table for development, large-scale production, in-process testing, calibration, and final inspection of inertial components and instruments, with a large closed-loop mechanical cooling temperature chamber.
Inner roll and outer pitch axes with continuous angular freedom.
Absolute optical encoders are directly mounted to the axes for very high precision positioning.
Temperature chamber range from -60 to +90°C with ±1°C stability.
ACCUDYNA controller integrated in a 36U standard console with GUI and remote interfaces.
The FDD-221-TCM-ULA is intended for development, large-scale production, in-process testing, calibration, and final inspection of inertial components and instruments. The catalog specifically lists large IMUs, IRUs, AHRSs, and INSs belonging to FOG, RLG, and mechanical classes.
The platform provides two axes and two degrees of freedom: inner roll and outer pitch, together with a large closed-loop mechanical cooling temperature chamber. The catalog emphasizes user-friendliness and ultra-accurate applications. The outer axis uses a stow lock for safe UUT loading and unloading. Precision pre-loaded angular contact ball bearings permit load capacities up to 50 kg. Wedge levelers allow alignment in two directions.
The system combines a direct-drive servo architecture, brushless torque motors, absolute optical encoders, precision bearings, a precision-machined tabletop, precision-bored bodies, slip rings, and a closed-loop mechanical cooling temperature chamber.
A highly reliable direct-drive servo system comprising a drive assembly, servo controller, and power amplifier.
Two continuous axes with an outer-axis stow lock for safe loading and unloading of the UUT.
Absolute optical encoders are directly mounted to the axes and provide very high precision positioning performance.
The large LTCM chamber supports controlled-temperature testing, while slip rings provide electrical access to the UUT and continuous-rotation simulation.
Independent axis values below follow the page-2 FDD-221-TCM-ULA parameter sheet.
80 Hz bandwidth · ±3,000°/s² acceleration · 115 N·m torque
30 Hz bandwidth · ±300°/s² acceleration · 637 N·m torque
P-P on both axes · 1.5 arcsec repeatability
0.0001% over 360° interval on both axes
Control and readout functions are managed by the ACCUDYNA controller and can be configured around the customer's application. Position, rate, and acceleration may be controlled manually through the GUI or remotely through RS232/RS422 computer interfaces.
The catalog positions FDD-221-TCM-ULA for development, large-scale production, in-process testing, calibration, and final inspection.
Designed for mass-production test programs.
Supports development of large inertial components and instruments.
Supports in-process verification and test sequences.
Ultra-accurate positioning and rate capabilities for calibration tasks.
Intended for final inspection of inertial components and instruments.
Catalog-listed test articles include large IMUs, IRUs, AHRSs, and INSs from FOG, RLG, and mechanical classes.
Values below follow the ACCUDYNA Version F · August 2024 catalog.
Open the official two-page ACCUDYNA catalog for the product overview, large LTCM chamber, ultra-accurate positioning architecture, options, and complete parameter sheet.
The FDD-221-TCM-ULA catalog lists customer-configurable communications, slip-ring, and tabletop options.
UDP via LAN up to 1 kHz
Special slip ring configurations
Custom-designed tabletops
Wide variety of slip ring capsule designs and wiring schematics
Answers are limited to information supported by the catalog.
Contact ACCUDYNA to discuss application-specific rate, positioning, loading, temperature, interface, and tabletop requirements.
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