Research Article

A Digital Mode-Matching Control System Based on Feedback Calibration for a MEMS Gyroscope

Table 1

Structure parameters.

ParameterValueParameterValue

Proof mass of the drive structure (kg)Structure thickness (μm)80
Stiffness of the drive structure (N/m)242.30Number of tuning combs 92
Resonant frequency of the drive mode (Hz)3216Tuning comb gap (μm)4.4
Q-factor of the drive mode in standard atmospheric pressure120Tuning comb length (μm)180
Proof mass of the sense structure (kg)Quadrature correction comb gap (μm)4
Stiffness of the sense structure (N/m)342.21Quadrature correction comb length (μm)20
Q-factor of the sense mode in standard atmospheric pressure10Number of quadrature correction combs 136
Resonant frequency of the sense mode (Hz)3251Mechanical parameter (N/(mV2))