Inductor devices – Relatively movable core and coil – Plural relatively movable core parts
Patent
1974-11-18
1976-04-06
Kozma, Thomas J.
Inductor devices
Relatively movable core and coil
Plural relatively movable core parts
H01F 2106
Patent
active
039493393
ABSTRACT:
An angular position transducer includes a core of magnetic material of circular shape and having a central hub extending from a central portion of and opposite outer rims extending from the outer periphery of a disk-shaped web. An armature which is of like size and shape to one half of the core so as to be semi-circular in configuration is mounted so as to undergo rotation relative to the core, the single outer rim of the armature being disposed adjacent one or the other or both of the outer rims of the core. A primary winding wrapped around the central hub of the core produces magnetic flux which flows into the armature, then through the single outer rim of the armature and adjacent portions of the outer rims of the core to a pair of secondary windings wound around the web of the core on opposite sides of the hub. The voltages induced in the two different secondary windings provide an indication of the angular position of the armature relative to the core, the algebraic sum of the voltages varying in generally linear fashion with changing angular positions of the armature relative to the core.
REFERENCES:
patent: 2628342 (1953-02-01), Taylor
patent: 2873431 (1959-02-01), Marsh
patent: 2997584 (1961-08-01), Querfurth
patent: 3146418 (1964-08-01), Maeda
patent: 3155931 (1964-11-01), Maeda
patent: 3204149 (1965-08-01), Vance
patent: 3217277 (1965-11-01), Gee et al.
patent: 3492618 (1970-01-01), Linke
patent: 3550053 (1969-05-01), Carlo
C. J. Kennedy Company
Kozma Thomas J.
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