Application of Frequency-Following Servocompensator to Unbalance Compensation in Gyro With Flexures Gimbal

Mizuno, Takeshi; Akiyama, Tomohiro; Takasaki, Masaya; Ishino, Yuji

doi:10.1109/tmech.2015.2497261

Cited by 10 publications

(1 citation statement)

References 16 publications

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“…However, because the actual structure of rotor is asymmetry axially, approximately 30 % residual oscillating component still exists [13]. To eliminate the oscillating component in the control current, Takeshi Mizuno et al applied the frequencytracking servocompensator in the hybrid suspended gyroscope [14]. Experiment shows that the component synchronized with the rotor spin is eliminated completely.…”

Section: Introductionmentioning

confidence: 99%

Analysis, Modeling and Compensation of Dynamic Imbalance Error for a Magnetically Suspended Sensitive Gyroscope

Xin¹,

Cai²,

Ren³

et al. 2016

Journal of Magnetics

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Magnetically suspended sensitive gyroscopes (MSSGs) provide an interesting alternative for achieving precious attitude angular measurement. To effectively reduce the measurement error caused by dynamic imbalance, this paper proposes a novel compensation method based on analysis and modeling of the error for a MSSG. Firstly, the angular velocity measurement principle of the MSSG is described. Then the analytical model of dynamic imbalance error has been established by solving the complex coefficient differential dynamic equations of the rotor. The generation mechanism and changing regularity of the dynamic imbalance error have been revealed. Next, a compensation method is designed to compensate the dynamic imbalance error and improve the measurement accuracy of the MSSG. The common issues caused by dynamic imbalance can be effectively resolved by the proposed method in gyroscopes with a levitating rotor. Comparative simulation results before and after compensation have verified the effectiveness and superiority of the proposed compensation method.

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Section: Introductionmentioning

confidence: 99%