Patent ID: 9151611
Filing Date: 2015-10-06
Classification: G01C

Abstract:
1. A rotation sensor for detecting a plurality of rates of rotation about orthogonal axes (x,y,z), comprising: a substrate; a plurality of masses that are displaceable relative to the substrate and disposed in an X-Y plane parallel to the substrate; a plurality of anchors for coupling the plurality of masses to the substrate; springs to couple at least some of the plurality of masses to at least one adjacent mass or to at least one anchor; drive elements for oscillating more than one of the plurality of masses in an X-direction, in order to generate Coriolis forces when the substrate is deflected; sensor elements in order to detect deflections of the more than one of the plurality of masses due to the Coriolis forces generated; and wherein the plurality of masses include driving masses, X-Y sensor masses. and Z sensor masses, the X-Y sensor masses being coupled to the driving masses and the Z sensor masses by means of springs, the X-Y sensor masses and the driving masses being coupled in such a manner that when the driving masses are driven to oscillate in the X-direction, the X-Y sensor masses are driven to oscillate in an X-Y direction by means of the driving masses.