Patent ID: 8020443
Filing Date: 2011-09-20
Classification: G01P

Abstract:
1. A transducer adapted to sense acceleration in at least two mutually orthogonal directions comprising: a substrate; a first proof mass positioned in spaced apart relationship above a surface of said substrate and adapted for motion relative to a rotational axis, said first proof mass having an opening extending through said first proof mass; a first anchor system formed on said surface of said substrate, said first anchor system pivotally coupling said first proof mass to said substrate at said rotational axis to enable said first proof mass to rotate about said rotational axis in response to said acceleration in a first direction of said mutually orthogonal directions; a second proof mass residing in said opening and in spaced apart relationship above said surface; and a second anchor system formed on said surface of said substrate and coupled with said second proof mass to enable said second proof mass to move substantially parallel to said surface of said substrate in response to said acceleration in a second direction of said mutually orthogonal directions.