Motion Simulator
Precision motion simulators provide controlled angular velocity and positioning about multiple orthogonal axes to verify inertial sensor performance. A multi-axis rate table allows for the simultaneous stimulation of roll, pitch, yaw and heave sensors under a unified coordinate system. The equipment is essential for calibrating the cross-axis sensitivity and misalignment of complex navigation clusters.
Angular Accuracy
High precision encoders located on each gimbal provide feedback on the exact orientation and speed of the platform. Engineers utilize a multi-axis rate table to subject a device under test to specific profiles ranging from slow Earth-rate rotations to high-speed maneuvers. The servo-controlled motors must maintain constant velocity despite the changing inertia of the payload.
Optical alignment between the sensor frame and the table axes ensures that the measurement data reflects the performance of the component rather than mounting errors.
Test Profile
Dynamic test sequences often combine constant rate steps with sinusoidal oscillations to characterize frequency response. The profiles help identify structural resonances in the sensor housing that might only appear during specific movement patterns.
Integrating Chamber
Integrating a thermal shroud allows the system to evaluate sensor behavior across a wide temperature range. Mechanical tolerances in the multi-axis rate table must be compensated to account for the expansion of the gimbal arms during extreme heat or cold.
