Patent ID: 6691571
Filing Date: 2004-02-17
Classification: G01C

Abstract:
An rate-of-rotation sensor comprising:a substrate; a Coriolis element arranged over a surface of the substrate; an excitation arrangement to induce the Coriolis element to oscillate in parallel to a first axis; a detection arrangement to prove an excursion of the Coriolis element based on a Coriolis force in a second axis that is perpendicular to the first axis, the first and second axis being parallel to the surface of the substrate; a drive element and a proof element both arranged above the surface of the substrate; and a first spring to connect the drive element to the Coriolis element, the first spring being rigid along the first axis and flexible along the second axis; and a second spring to connect the proof element to the Coriolis element, the second spring being rigid in a first direction and flexible along a second direction.