Patent ID: 8776599
Filing Date: 2014-07-15
Classification: G01C

Abstract:
1. A micro gyroscope to determine rotational movements about three perpendicularly stacked spatial axes x, y and z, the gyroscope comprising: a substrate on which several tangentially oscillating masses are arranged about the z axis that is perpendicularly positioned on the substrate, the oscillating masses are fastened to the substrate with springs and tie bolts; drive elements to maintain oscillating tangential vibrations of the masses about the z axis, as a result of which the masses are subject to Coriolis forces and the deflections caused by the Coriolis forces when the substrate rotates around any spatial axis; and sensor elements to register the deflection of the masses caused by the Coriolis forces, wherein some of the masses oscillating about the z axis are tiltably arranged about the x axis that runs parallel to the substrate, other masses oscillating about the z axis are essentially tiltably arranged about the y axis that runs parallel to the substrate, and at least one of the oscillating masses can be also be deflected at least partially radially with respect to the z axis in the x-y plane parallel to the plane of the substrate, this z mass can be additionally deflected radially and is allocated to an oscillating sensor element that can also be deflected radially with regard to the z axis but not about the z axis.