Research on the Short-Time Bias Stability of the Solid Vibration Beam Gyroscope
In this paper, Short-term bias stability of solid state vibration beam gyroscope is studied. Based on the dynamical equation of solid vibration beam gyroscope, the elements effecting the zero stability which effects the short term bias stability was discussed. The computed result shows that the main factors for short-term bias stability is transient solution error. The output signal has been filtered by the low pass filter, according to the characteristic of transient solution error. Simulation results demonstrate that low-pass filter can effectively suppress the error of output signal. In addition, the signal of solid state vibrating gyroscope filtered by low-pass filter agrees well with the simulation result. From the simulation and experiment data, the validity of the model and the feasibility of the filtering programs has been proved.
X. L. Bai et al., "Research on the Short-Time Bias Stability of the Solid Vibration Beam Gyroscope", Advanced Materials Research, Vols. 179-180, pp. 86-91, 2011