ApplicationNo. 740004 filed on 11/08/1976
US Classes:324/207.2, Hall effect310/168, Inductor-type generators (variable reluctance)338/32HHall effect
ExaminersPrimary: Corcoran, Robert J.
Attorney, Agent or Firm
International ClassG01R 033/12
Foreign Application Priority Data1975-11-12 FR
AbstractA device for determining the angular position of a rotating part includes first and second parallel arranged magnets forming a symmetric magnetic excitation circuit with a Hall-effect element disposed on the axis thereof. The rotating part has first and second elements made of a soft magnetic material which are angularly displaced so as to alternately pass by the first and second magnets, respectively, to produce first and second oppositely directed transverse magnetic field components, H, at the Hall-effect element which thereby generates a signal whose polarity reverses to indicate angular position of the rotating part.