Capacitive angle detector

Details Capacitive angle detector Capacitive angle detector

1997-12-19

1999-06-08

Horabik, Michael

Communications: electrical

Continuously variable indicating

With particular transmitter

318662, 324658, 324600, G08C 1910

Patent

active

059107812

ABSTRACT:
A capacitive angle detector according to the present invention is capable of detecting a rotating angle with a high precision. The capacitive angle detector includes a first member, a second member and a third member. The first and second members have a plurality of electrodes thereon to form a plurality of capacitors. The electrodes on the first member and the electrodes on the second member are free from relative rotation and arranged opposite each other. The third member rotates relative to the first and second members in accordance with a rotating movement of a rotating body, thus changing capacitance values of the capacitors. Based on capacitance values of the capacitors, the capacitive angle detector detects a rotating angle of the rotating body. In this capacitive angle detector, the third member is made of a dielectric material or a conductive metal material. The third member is partially interposed between the electrodes arranged opposite each other.

REFERENCES:
patent: 3732553 (1973-05-01), Hardway, Jr.
patent: 5574442 (1996-11-01), Kinoshita et al.
patent: 5598153 (1997-01-01), Brasseur et al.

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