Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1979-02-27
1981-05-12
Heyman, John S.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
328110, 328118, 328141, 328147, 307358, 307543, 123414, H03K 526
Patent
active
042674700
ABSTRACT:
A rotational angle detecting apparatus comprises a rotary disc having first protrusions for an angle signal provided along the outer periphery of the disc and second protrusion for a reference signal arranged adjacent to the first protrusions in the thickness direction of the disc. A pick-up assembly is disposed to face the second protrusion to sense the rotationl position thereof. The sensed signal including noise components due to a magnetic coupling between the pick-up assembly and the first protrusions is subject to an integration and then applied to a level detector to generate a first pulse signal which occurs only during the integration signal being greater than a predetermined threshold level. On the other hand, a second pulse signal is produced by shaping the sensed signal. The first and second pulse signals are applied to an AND logic gate from which an output pulse is obtained in synchronism with the rotation of the disc.
REFERENCES:
patent: 3600688 (1971-08-01), Booth
patent: 3755745 (1973-08-01), Sapir
patent: 3867702 (1975-02-01), Torpie et al.
patent: 3874349 (1975-04-01), Eitzner
patent: 3969677 (1976-07-01), Woyton
patent: 3971995 (1976-07-01), Eikelberger
Kawakami Kazuhiko
Sugiura Noboru
Heyman John S.
Hitachi , Ltd.
LandOfFree
Rotational angle detecting apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotational angle detecting apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotational angle detecting apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2048959