A microfabricated gyroscope (20) includes proof mass (22) connected to a frame or substrate (24) to measure rotation about an axis parallel to the surface of the substrate. The micromachined gyroscope includes a suspension system (30), a drive system (32) used to sustain oscillation of the proof mass (22) and a sensing system (34) used to detect deflections of the proof mass (22). The proof mass includes a plurality of electrode fingers (38). Voltage sources (120, 122, 124, 126) apply a voltage to sense fingers (74a-b, 76a-b) of sense electrodes (62a-b) to provide bias voltages to nullify quadrature error, select or adjust the resonant frequency of vibrations of the mass along the sense axis and cancel any centrifugal or other low-frequency forces.
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