Shatalov, MCoetzee, C2010-01-072010-01-072009-05Shatalov, M and Coetzee, C. 2009. Dynamics of rotating and vibrating thin hemispherical shell with mass and damping imperfections and parametrically driven by discrete electrodes. 16th Saint Petersburg International Conference on Integrated Navigation Systems. Saint Petersburg, Russia, 25-27 May 2009, pp 10http://hdl.handle.net/10204/384416th Saint Petersburg International Conference on Integrated Navigation Systems. Saint Petersburg, Russia, 25-27 May 2009The parametric electrode is normally used in the hemispherical resonator gyroscopes, operating in the whole angle regime, for maintaining of amplitudes of vibratory patterns. It is well known that due to variation of the gap between the resonator and parametric electrode a drift of the vibrating pattern is obtained. This drift is similar to the gyro drift stipulated by the Q-factor imperfections and substantially deteriorates the quality of the hemispherical resonator gyroscope. In the present paper we consider the methods of compensation of these drifts by means of the special control of the vibrating pattern by the sectioned parametric electrode. Compensation of the drifts is achieved through amplitudes of voltage and phase manipulations at the sectioned parametric electrodes. The side effect of this control is discussed consisting of spurious splitting of frequencies of the vibrating patternenHemispherical resonator gyroscopeWhole angle regimeParametric electrodeCompensation of gyro driftConference PresentationShatalov, M., & Coetzee, C. (2009). Dynamics of rotating and vibrating thin hemispherical shell with mass and damping imperfections and parametrically driven by discrete electrodes. http://hdl.handle.net/10204/3844Shatalov, M, and C Coetzee. "Dynamics of rotating and vibrating thin hemispherical shell with mass and damping imperfections and parametrically driven by discrete electrodes." (2009): http://hdl.handle.net/10204/3844Shatalov M, Coetzee C, Dynamics of rotating and vibrating thin hemispherical shell with mass and damping imperfections and parametrically driven by discrete electrodes; 2009. http://hdl.handle.net/10204/3844 .TY - Conference Presentation AU - Shatalov, M AU - Coetzee, C AB - The parametric electrode is normally used in the hemispherical resonator gyroscopes, operating in the whole angle regime, for maintaining of amplitudes of vibratory patterns. It is well known that due to variation of the gap between the resonator and parametric electrode a drift of the vibrating pattern is obtained. This drift is similar to the gyro drift stipulated by the Q-factor imperfections and substantially deteriorates the quality of the hemispherical resonator gyroscope. In the present paper we consider the methods of compensation of these drifts by means of the special control of the vibrating pattern by the sectioned parametric electrode. Compensation of the drifts is achieved through amplitudes of voltage and phase manipulations at the sectioned parametric electrodes. The side effect of this control is discussed consisting of spurious splitting of frequencies of the vibrating pattern DA - 2009-05 DB - ResearchSpace DP - CSIR KW - Hemispherical resonator gyroscope KW - Whole angle regime KW - Parametric electrode KW - Compensation of gyro drift LK - https://researchspace.csir.co.za PY - 2009 T1 - Dynamics of rotating and vibrating thin hemispherical shell with mass and damping imperfections and parametrically driven by discrete electrodes TI - Dynamics of rotating and vibrating thin hemispherical shell with mass and damping imperfections and parametrically driven by discrete electrodes UR - http://hdl.handle.net/10204/3844 ER -