Patent ID: 8072210
Filing Date: 2011-12-06
Classification: D06F

Abstract:
1. A detecting device for detecting the angular position of an electric rotating member comprising: a magnetic field generating apparatus arranged in a fixed position with respect to the rotating member; an interaction apparatus arranged on the rotating member in a position so as to periodically transit in front of the magnetic field generating apparatus; and a signal generating apparatus adapted to generate an electrical signal when the signal generating apparatus is crossed by flux lines of the magnetic field, said signal generating apparatus integrally arranged with the magnetic field generating apparatus; wherein said magnetic field generating apparatus is shaped so that said periodic transit of the interaction apparatus causes a spatial variation of arrangement of the magnetic field flux lines between a first and a second field configuration; and said signal generating apparatus is arranged, with respect to the interaction apparatus, on the same side as the magnetic field generating apparatus, but in a position so as to be crossed by the flux lines only in said second field configuration.