Abstract
The present paper is focused on the theoretical and experimental analysis of a three-axes MEMS gyroscope, developed by ST Microelectronics, implementing an innovative feedforward PI quadrature compensation architecture. The gyroscopes structure is explained and equations of motion are written; modal shapes and frequencies are obtained by finite element simulations. Electrostatic quadrature compensation strategy is explained focusing on the design of quadrature cancellation electrodes. A new quadrature compensation strategy based on feedforward PI architecture is introduced in this device to take into account variations of device parameters during lifetime. Obtained results show a significant reduction of the quadrature error resulting in a improved performance of the device. Fabrication and test results conclude the work.
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Marano, D., Cammarata, A., Fichera, G., Sinatra, R., Prati, D. (2017). Modeling of a three-axes MEMS gyroscope with feedforward PI quadrature compensation. In: Eynard, B., Nigrelli, V., Oliveri, S., Peris-Fajarnes, G., Rizzuti, S. (eds) Advances on Mechanics, Design Engineering and Manufacturing . Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-45781-9_8
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DOI: https://doi.org/10.1007/978-3-319-45781-9_8
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