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AN AUTOMATIC ACCELERATION COMPENSATION SYSTEM FOR A SINGLE-MASS MEMS GYROSCOPE
Date
2015-06-25
Author
Gavcar, H. D.
Azgın, Kıvanç
Alper, S. E.
Akın, Tayfun
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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This paper presents the architecture and experimental verification of an automatic acceleration compensation system applied to a single-mass MEMS gyroscope. The proposed method eliminates low frequency proof mass motion of the gyroscope due to external accelerations, suppressing the g-sensitivity of the gyroscope bias up to 12 times. This is achieved by dedicated acceleration cancellation electrodes ( ACEs) for the first time in the literature, eliminating any degradation of the sensor bias stability and noise performance during the compensation process. The method is also verified to improve the scale factor nonlinearity from 2700ppm to 1800ppm for +/-600 degrees/s range, and for centrifugal accelerations as high as 0.5g.
Subject Keywords
MEMS gyroscope
,
Gyroscope
,
G-sensitivity
,
Acceleration sensitivity compensation
URI
https://hdl.handle.net/11511/55895
Collections
Department of Mechanical Engineering, Conference / Seminar