Patent ID: 8453502
Filing Date: 2013-06-04
Classification: G01C

Abstract:
1. A micromechanical yaw rate sensor, comprising: a substrate having a main plane of extension; a first Coriolis element and a second Coriolis element, wherein the first Coriolis element is configured to be driven to a first vibration, and wherein the second Coriolis element is configured to be driven to a second vibration along a direction antiparallel to the first vibration, and wherein a first deflection of the first Coriolis element and a second deflection of the second Coriolis element are detectable, in each case along a first direction extending parallel to the main plane of extension and perpendicular to a second direction extending parallel to the main plane of extension, and wherein the first vibration occurs along the second direction; a rocker element one of indirectly or directly coupled to the first Coriolis element and to the second Coriolis element, wherein the rocker element has a torsional axis essentially parallel to the second direction; a first drive frame, wherein the first Coriolis element is driven to the first vibration with the aid of the first drive frame; and a second drive frame, wherein the second Coriolis element is driven to the second vibration with the aid of the second drive frame; wherein the first Coriolis element and the first drive frame are coupled to one another in a first coupling, and wherein the second Coriolis element and the second drive frame are coupled to one another in a second coupling, each of the first and second couplings being achieved by a respective first spring element, wherein the first spring elements are more flexible along the first direction than along at least one of (i) the second direction and (ii) a third direction perpendicular to the main plane of extension; wherein the torsional axis is situated along the first direction, between the first and second Coriolis elements; wherein the rocker element has a recess in which at least one of the first Coriolis element, the second Coriolis element, the first drive frame, and the second drive frame is situated parallel to the main plane of extension.