Simplified wheel speed transducer
AssigneeGoodyear Aerospace Corporation
InventorBasil M. Madigan
Life of this patent
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Abstract
A wheel speed transducer for sensing the rotational speed of a wheel about an axle which fundamentally includes a housing fixed to the axle and containing therein two permanent magnets. The magnets are arranged such that an elongated pole piece commonly abuts first surfaces of each of the magnets, such surfaces being of like polarity. Two inductive coils having flux-conductive cores axially passing therethrough abut each of the magnets on second surfaces thereof, the second surfaces of the magnets again being of like polarity with respect to each other and of opposite polarity with respect to the first surfaces. There are further provided two additional pole pieces, one connected to the end of each of the cores opposite the ends of the cores which abut the magnets.
Claims6
A wheel speed transducer for sensing the rotational speed of a wheel about an axle, comprising:
- a housing adaptable for being fixedly secured to the axle;
- two permanent magnet disks received within the housing;
- at least one elongated pole piece commonly abutting a first surface of each of said magnet disks, said surfaces being of like polarity;
- two inductive coils have flux-conductive cores axially passing therethrough, each magnet disk being abutted by a core on a second surface thereof in substantially perpendicular relationship therewith, the second surface of said magnet disks being of like polarity with respect to each other and of opposite polarity with respect to the first surfaces;
- and
- two pole pieces, one connected to the end of each of the cores opposite the ends of the cores abutting the magnet disks.
Dependencies are inferred from the claim text.