Precision Auto Calibrated Shell Resonator Gyroscope

Our goal for this Navy SBIR project is to develop a TRL-7 prototype of the BRG with excellent long-term bias stability and shock and vibration insensitivity that can operate in a military temperature range (-50¢80 ░C) and optionally can operate at very high temperature (200 ░C) (i.e. bias drift < 0.01 deg/hr, angle random walk < 0.005 deg/sqrt(hr), and scale factor stability < 100 ppm).ĀĀWe will investigate and overcome the factors that affect the bias stability and temperature sensitivities of bias and scale factor that currently limit the performance of the Gen-1 readout-and-control electronics.Ā We also propose to evaluate and enhance the performance of electronic self-calibration and compensation algorithms with BRG-10 prototype that will be ready TA2.Ā We plan to test the bias stability and scale factor stability of the BRG-10 prototypes including the self-calibration and compensation algorithms in the military temperature range (-50-85 ║C).Ā In TA2, we plan to continue the fabrication of BRG-10 prototypes including a dual-layer vacuum package.Ā We plan to demonstrate excellent Q (>4 million) and ?f (<1 Hz), which are essentially needed for building a navigation-grade gyroscope.