A multi-class, three-axis rate table for development, large-scale production, in-process testing, calibration, and final inspection of large inertial components and instruments, combining ultra-accurate positioning with a large liquid carbon dioxide (LCO2) temperature chamber.
Inner roll, middle pitch, and outer yaw axes with continuous angular freedom.
±3 P-P arcsec accuracy, 1.5 arcsec repeatability, and 0.00001° command resolution.
Integrated carbon-dioxide chamber with -45 to +90°C range, ±1°C stability, and ±3°C/min temperature rate.
GUI and RS232/RS422 control, with UDP via LAN up to 1 kHz listed as an option.
The FDD-331-TCC-ULA is designed 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 product emphasizes user-friendliness and ultra-accurate applications.
The platform provides three degrees of freedom — inner roll, middle pitch, and outer yaw — together with a large liquid carbon dioxide (LCO2) temperature chamber. The middle axis is equipped with a stow lock for safe UUT loading and unloading. Precision pre-loaded angular-contact ball bearings support loads up to 50 kg. The system includes interconnecting cables and mating connectors, and wedge levelers allow alignment in two directions.
The architecture combines direct-drive brushless torque motors, absolute optical encoders, precision pre-loaded angular-contact bearings, a precision-machined tabletop, precision-bored bodies, slip-ring assemblies, and an integrated large LCO2 temperature chamber.
Inner roll, middle pitch, and outer yaw provide three continuous degrees of freedom.
The catalog specifies direct-drive brushless torque motors within a highly reliable servo system.
Absolute optical encoders are mounted directly to the axes for very high precision positioning performance.
Power rings and shielded signal rings provide electrical access to the UUT and enable continuous-rotation simulation.
The integrated carbon-dioxide chamber extends the platform into controlled environmental testing.
Axis values below follow the FDD-331-TCC-ULA parameter sheet.
80 Hz bandwidth · ±5,000°/s² acceleration · 115 N·m torque
30 Hz bandwidth · ±500°/s² acceleration · 1274 N·m torque
10 Hz bandwidth · ±500°/s² acceleration · 6494 N·m torque
Position, rate, and acceleration control can be performed manually from the GUI or remotely through RS232/RS422 computer interfaces.
The catalog positions FDD-331-TCC-ULA for development, large-scale production, in-process testing, calibration, and final inspection of large inertial components and instruments.
Three-axis characterization and validation of large inertial components and instruments.
The datasheet explicitly lists large-scale production among intended uses.
Production-stage verification for large IMUs, IRUs, AHRSs, and INSs.
Ultra-accurate position and rate capability for calibration workflows.
Final inspection of inertial components and instruments across FOG, RLG, and mechanical classes.
Large LCO2 chamber provides -45 to +90°C conditioning with ±1°C stability.
Values below are transcribed from the Version F · August 2024 parameter sheet.
Open the official two-page ACCUDYNA catalog for the product overview, three-axis ultra-accurate architecture, large LCO2 temperature chamber, control system, options, and complete parameter sheet.
The catalog lists communications, slip-ring, and tabletop options for customer-specific integration.
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 below are limited to catalog-supported information.
Contact ACCUDYNA to discuss application-specific rate, positioning, loading, LCO2 temperature-chamber, communications, slip-ring, and tabletop requirements.
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