Patent ID: 8549921
Filing Date: 2013-10-08
Classification: G01P

Abstract:
1. A sensor for detecting an acceleration acting on the sensor, comprising: a substrate; a mass unit acting as an inertial mass in the presence of the acceleration; a support structure, jointly coupling the mass unit to the substrate, wherein the mass unit is jointly connected to the substrate such that at least one pivot axis is defined around which the mass unit can perform a rotation relative to the substrate due to the acceleration acting on the sensor, and the mass unit comprises a centre of gravity offset from the at least one pivot axis; and at least one detection unit, with which a change in position between the mass unit and the substrate is detectable, and the at least one detection unit is a capacitor, wherein the at least one detection unit is positioned, with respect to the mass unit, such that a deformation of the mass unit is not transferable to the detection unit; and wherein the support structure is positioned on the substrate such that an intersection of two mutually orthogonal pivot axes defines an anchor point around which the mass unit is rotatable according to two degrees of freedom.