AXIAL AND PERPENDICULAR ANGLE SENSOR IN SINGLE PACKAGE

摘要

Embodiments relate to magnetic field angle sensors that utilize axial and perpendicular sensors collectively to infer a rotational angle. In embodiments, a sensor system comprises at least one axial sensor unit and at least one perpendicular sensor unit arranged in a single sensor package or on a single substrate. The axial and perpendicular sensor data both representative of the rotational position can be used to improve output angle accuracy by, e.g., calibrating the sensor system.

主权项

1. A method comprising:
providing a sensor system comprising a first sensor and a second sensor coupled to a support structure; sensing magnetic field components along a first direction by the first sensor to derive a first rotation angle unambiguously in a range of at least 90 degrees; sensing magnetic field components along a second direction different from the first direction by the second sensor to derive a second rotation angle unambiguously in a range of at least 70 degrees; and calibrating the sensor system using at least one of the first rotation angle or the second rotation angle.