Angular position sensor

Details Angular position sensor Angular position sensor

1983-10-17

1986-04-22

Caldwell, Sr., John W.

Communications: electrical

Continuously variable indicating

With particular transmitter

74471XY, 324208, 336 45, 33 1N, 33 1PT, G08C 1906

Patent

active

045845778

ABSTRACT:
An angular position sensor comprising a generator coil driven by an oscillator to provide an alternating magnetic field which is symmetrical about an axis, an annular rotor of electrically-conductive or magnetic material such that it distorts the magnetic field around it and arranged so that it is asymmetrical about its axis of rotation and lies outside the equatorial plane of the magnetic field and two sensing coils disposed within the magnetic field. As the rotor 16 rotates about its axis the emfs induced in the sensing coils vary in dependence upon the angular position of the rotor relative to the axis of the undistorted magnetic field.

REFERENCES:
patent: 3024409 (1962-03-01), Brown
patent: 3217308 (1965-11-01), Maxwell, Jr.
patent: 3250982 (1966-05-01), Bowie
patent: 3365975 (1968-01-01), Hathaway
patent: 3509469 (1970-04-01), Strange
patent: 3641429 (1972-02-01), Cox, Jr.
patent: 3699558 (1972-10-01), Hendley
patent: 3861763 (1975-01-01), Perkins
patent: 4013911 (1977-03-01), Fujiwara
patent: 4401986 (1983-08-01), Trenkler

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