Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1989-08-09
1991-04-02
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250237G, G01D 534
Patent
active
050049151
ABSTRACT:
Steering angle sensor apparatus includes a disc, a circuit substrate and a sensor contained within a single cover. The disc has indications such as slits or lines and is mounted on one of a steering shaft that rotates during a steering operation and a stationary member such as a steering column. The circuit substrate includes circuit parts and is mounted on the other one of the steering shaft and stationary member. A sensor includes at least one element mounted on the circuit substrate and senses the relative movement of the disc caused by the steering operation. The circuit substrate is positioned to confront a surface of the disc.
REFERENCES:
patent: 4614869 (1986-09-01), Hoshino et al.
patent: 4661698 (1987-04-01), Cappio et al.
Hirose Hisashi
Kono Kazuo
Umehara Keiichi
Kabushiki Kaisha Tokai Rika Denki Seisakusho
Nelms David C.
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