Communications: electrical – Continuously variable indicating – With particular transmitter
Patent
1987-10-09
1988-11-29
Caldwell, Sr., John W.
Communications: electrical
Continuously variable indicating
With particular transmitter
324 60CD, G01R 2726
Patent
active
047885467
ABSTRACT:
An electrostatic capacity type encoder which includes a rotary disk rotatingly provided on an encoder body, and a first stationary disk and a second stationary disk fixed to the encoder body to face each other with the rotary disk arranged therebetween. A plurality of transmitting electrodes are provided on the first stationary disk. On the rotary disk is provided not only a plurality of receiving electrodes facing the transmitting electrodes on the first stationary disk but also a coupling electrode connected to the receiving electrodes and facing the second stationary disk. An output electrode is provided on the second stationary disk to face the coupling electrode on the rotary disk. To the respective transmitting electrodes are applied alternating currents with respective different phases, and the amount of rotating displacement in the rotary disk is detected in accordance with the output signal from the output electrode which changes with the rotation of the rotary disk.
REFERENCES:
patent: 3303701 (1967-02-01), Matsura et al.
patent: 3543259 (1970-11-01), Klyce
patent: 3668672 (1972-06-01), Parnell
patent: 3723866 (1973-03-01), Michaud et al.
patent: 3961318 (1976-06-01), Farand et al.
patent: 4223300 (1980-09-01), Wiklund
patent: 4294321 (1981-10-01), Wittlinger et al.
patent: 4300093 (1981-11-01), Ogasawara et al.
patent: 4339709 (1982-07-01), Brihier
patent: 4420754 (1983-12-01), Anderno
patent: 4451780 (1984-05-01), Ogasawara
patent: 4471450 (1984-09-01), Arnason et al.
Caldwell Sr. John W.
Fatahi-Yar Mahmoud
Mitutoyo Mfg. Co. Ltd.
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