Contactless hall-effect angular position sensor

Details Contactless hall-effect angular position sensor Contactless hall-effect angular position sensor

2005-01-25

2005-01-25

LeDynh, Bot (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207200, C324S251000

Reexamination Certificate

active

06847205

ABSTRACT:
Angular position sensor including:a ferromagnetic ring (3) having an axis (8);a magnetic source (1) disposed substantially centrally with respect to the ring (3) and generating a magnetic field following a magnetic direction (6) that is generally perpendicular to the axis (8) of the ring (3);a Hall-effect cell (2) disposed inside the ring (3) on a radius (7) passing through the center of the ring and perpendicular to the magnetic direction (6) and to the axis (8) of the ring (3), the Hall-effect cell (2) measuring the radial magnetic field;a magnetic flux guide (4) interposed between the magnetic source (1) and the Hall-effect cell (2), the magnetic flux guide being rotatable around the magnetic source following the axis (8) of the ring (3).

REFERENCES:
patent: 5126663 (1992-06-01), Shinjo
patent: 6693421 (2004-02-01), Wolf
patent: 20030137291 (2003-07-01), Wendel et al.
patent: 1 268 399 (1968-04-01), None
patent: 2 444 274 (1980-07-01), None
patent: 2 829 574 (2003-03-01), None

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