Devices and methods for reducing errors in a MEMS-type gyroscope are
disclosed. A MEMS-type gyroscope in accordance with an illustrative
embodiment of the present invention can include one or more proof masses
configured to oscillate in a drive plane above a sense electrode for
measuring Coriolis forces exerted on the one or more proof masses
resulting from motion of the gyroscope about an input axis. One or more
quad steering voltage members can be positioned adjacent each of the one
or more proof masses and activated to electrostatically attract the proof
masses toward the sense electrodes to reduce any undesired motion of the
proof masses due to quadrature and/or temperature effects. The voltage
applied to each of the quad steering voltage members can be time-varying,
and, in some cases, can be derived from the same voltage signal used to
drive the proof masses.