Patent ID: 9631928
Date: 2017-04-25
CPC Classifications: B81B,G01C

Claim:
1. A microelectromechanical gyroscope structure, comprising: a seismic mass; a body element; a spring structure suspending the seismic mass to the body element to allow a primary oscillation where at least part of the seismic mass is excited to oscillation in a first direction, and a secondary oscillation where at least part of the seismic mass moves in a second direction that is perpendicular to the first direction, and the seismic mass comprises a surface plane that extends planarly in the second direction and in a third direction, wherein the third direction is perpendicular to the first direction and the second direction; a first conductor arranged to move with the seismic mass, the first conductor including a first surface that extends on the seismic mass in the first direction and the third direction; a second conductor attached to the body element and including a second surface extending in the first direction and the third direction, and adjacent to the first surface; a voltage element arranged to create between the first surface and the second surface a potential difference thereby inducing an electrostatic force in the second direction, which electrostatic force is modulated by the primary oscillation of the seismic mass.