Abstract:
A gyroscope includes: a substrate (2); a first structure (11), a second structure (12) and a third structure (10) elastically coupled to the substrate (2) and movable along a first axis (X), the first and second structure (11; 12) being arranged at opposite sides of the third structure (10) with respect to the first axis (X); a driving system (4, 16a, 16b, 20a, 20b), configured to oscillate the first and second structure (11, 12) along the first axis (X) in phase with one another and in phase opposition with the third structure (10); the first, second and third structure (11, 12, 10) being provided with respective sets of sensing electrodes (17a, 21a), configured to be displaced along a second axis (Y) perpendicular to the first axis (X) in response to rotations of the substrate (2) about a third axis (Z) perpendicular to the first axis (X) and to the second axis (Y).
Abstract:
A microelectromechanical gyroscope includes: a substrate (2); a stator sensing structure (16b) fixed to the substrate (2); a first mass (7) elastically constrained to the substrate (2) and movable with respect to the substrate (2) in a first direction (D1); a second mass (8) elastically constrained to the first mass (7) and movable with respect to the first mass (7) in a second direction (D2); and a third mass (10) elastically constrained to the second mass (8) and to the substrate (2) and capacitively coupled to the stator sensing structure (16b), the third mass (10) being movable with respect to the substrate (2) in the second direction (D2) and with respect to the second mass (8) in the first direction (D1).