Device for the detection of the state of rotation of a shaft, in

Details Device for the detection of the state of rotation of a shaft, in Device for the detection of the state of rotation of a shaft, in

1979-02-26

1980-11-18

Gilreath, Stanley N.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

361289, 361292, G11B 1532, G03B 102, H01G 500

Patent

active

042341396

ABSTRACT:
A rotatable capacitor of variable capacitance is utilized to produce modulation of a signal, and demodulation of the signal produces a signal usable for determining the state of rotation of a shaft used for rotating the capacitor.

REFERENCES:
patent: 1600842 (1926-09-01), Philips
patent: 2257830 (1941-10-01), Wolff et al.
patent: 2261879 (1941-11-01), Higgins
patent: 3517282 (1970-06-01), Miller
patent: 3668672 (1972-06-01), Parnell
patent: 3729728 (1973-04-01), Hardway, Jr.
patent: 3729991 (1973-05-01), Hardway, Jr.
patent: 3800196 (1974-03-01), Zimmermann

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