Patent ID: 9134128
Filing Date: 2015-09-15
Classification: G01C,G01P

Abstract:
1. A micro-electro-mechanical-system (MEMS) sensor for detecting accelerations along and rotational movements about at least one of three mutually perpendicular spatial axes, x, y, and z, comprising: a substrate arranged in an x-y plane; at least one driving mass adapted to oscillate in a plane parallel to the substrate and driven in a linear motion along the x-axis; at least one sensing mass connected to the least one driving mass via connecting springs, wherein the connecting springs bend to move the at least one sensing mass in a linear motion relative to the at least one driving mass during operation; at least one anchor secured to the substrate and at least one anchor spring connected to the at least one driving mass or the at least one sensing mass; sensing elements for sensing acceleration, rotation, or both of the MEMS sensor; and drive elements for driving the at least one driving mass relative to the at least one sensing mass at a driving frequency, wherein the at least one driving mass is adapted to generate an imbalance of the at least one driving mass and the at least one sensing mass with respect to the at least one anchor during operation.