Method of determining the angular position of a projector using several means for measuring a magnetic field.

摘要

The method involves measuring the intensity of a local magnetic field in projection on a measurement axis orthogonal to another measurement axis using a Hall effect sensor which emits an electric measurement signal. An electronic processing unit (35) calculates a value representing the angle of the magnetic field with respect to the latter axis in projection on a plane defined by the axes. The former axis extends in a plane orthogonal to a pivoting axis (A) of a magnet (32) with respect to another Hall effect sensor (34). An independent claim is also included for a measurement device for implementing a rotary headlamp`s instantaneous angular position determining method.