Patent ID: 7958782
Filing Date: 2011-06-14
Classification: G01D,G01P

Abstract:
1. A device with a sensor arrangement comprising: a field generator for generating at least a part of a magnetic field, a first field detector comprising first elements for detecting first components of the magnetic field in a plane, a magnetic shield located substantially between the first elements and the field generator, wherein the first elements are magnetically shielded to reduce the magnetic field from the field generator at the first elements, a second field detector comprising second elements for detecting second components of the magnetic field in the plane, wherein the first field detector and the second field detector operate in an absence of a biasing magnetic field, and a movable object for, in response to a respective first and second acceleration of the movable object in a respective first and second direction, changing the first and second components of the magnetic field in the plane, the first direction being a direction perpendicular to the plane, the second direction being a direction in the plane, and the first field detector being more sensitive to the first acceleration than to the second acceleration and the second field detector being more sensitive to the second acceleration than to the first acceleration.