WANG Ling-yun, CHEN Yi-hua, SUN Dao-heng. Design of self-test electrode for tunneling-based gyroscope with vibrating cantilever[J]. 2006, (5): 61-63+66.
WANG Ling-yun, CHEN Yi-hua, SUN Dao-heng. Design of self-test electrode for tunneling-based gyroscope with vibrating cantilever[J]. 2006, (5): 61-63+66. DOI: 10.13873/j.1000-97872006.05.020.
One of important way to improve the reliability and safety of MEMS is to use a built-in self-test.There are some differences between Coriolis force and other inertial force in gyroscope.The Coriolis force is dynamic
although the angular rate is constant.A pair of plate electrodes is used
the boundary of one of them changes according to a special function.When the gyroscope’s cantilever oscillates
the electrostatic force between the two plate electrodes can perfectly simulate the Coriolis force in qyrosoope.The result of finite element analysis(FEA) also indicates this design can be used to realize the aim of self-testing in the gyroscope.