Geometrical instruments – Miscellaneous – Light direction
Patent
1993-04-07
2000-01-25
Hirshfeld, Andrew
Geometrical instruments
Miscellaneous
Light direction
33 1N, 33534, 32420725, G01B 730
Patent
active
060166053
ABSTRACT:
A device for contactless determination of a rotary angle has a coil body, sensor coils arranged on the coil body so that their inductivity and alternating current resistance values vary in dependence on a relative change of the size of regions of a sleeve-shaped measuring part composed of electrically conductive and/or ferromagnetic material which are associated with the sensor coils, at least one coil being formed as a wire coil which is arranged on a side of the coil body facing the measuring part. The at least one coil has several coil regions extending in a circumferential direction and parallel to an outer surface of the coil body, and in the regions of the coil a winding direction of the at least one coil changes on the catches.
REFERENCES:
patent: 5126655 (1992-06-01), Hachtel et al.
patent: 5263258 (1993-11-01), Dobler et al.
Hirshfeld Andrew
Robert & Bosch GmbH
Striker Michael J.
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