Patent ID: 8429970
Filing Date: 2013-04-30
Classification: G01C

Abstract:
1. A microgyroscope for determining rotational movements around an x-axis, a y-axis or a z-axis, comprising: a substrate on which at least one anchor is fastened, a plurality of individual oscillating masses, each of said plurality of individual oscillating masses being configured to radially oscillate with respect to said at least one anchor, wherein each of said plurality of individual oscillating masses is fastened to the at least one anchor with at least one spring, driving elements for oscillating said plurality of individual oscillating masses along the x-axis or the y-axis, in order to generate Coriolis forces when the substrate is deflected, and sensor elements for detecting deflections of said plurality of individual oscillating masses with respect to the substrate, said deflections being caused due to said generated Coriolis forces associated with the rotational movements around the x-axis or the y-axis, wherein said plurality of individual oscillating masses are connected to at least one additional mass, which is not oscillating but is rotatable together with said plurality of individual oscillating masses on the substrate, around the at least one anchor, for the purpose of sensing the rotational movement around the z-axis, and an additional sensor element is disposed to detect movement of said at least one additional mass.