Magnetic angular position sensor

Details Magnetic angular position sensor Magnetic angular position sensor

1985-04-25

1986-09-30

Little, Willis

Geometrical instruments

Indicator of direction of force traversing natural media

Borehole direction or inclination

33327, 33346, 33356, 33396, G01C 1938

Patent

active

046140417

ABSTRACT:
A magnetic angular position sensor having a ferrofluid filled spherical chamber in a cylindrical housing, within which floats a body comprising a buoyant core carrying a magnet which aligns itself and the body with the earth's magnetic field, and carrying an odd number of small permanent magnets. Hall effect devices are located in recesses in the ends of the housing. The housing also carries a calibration solenoid.

REFERENCES:
patent: 3262080 (1966-07-01), Hubbard
patent: 3286358 (1966-11-01), Smokowski
patent: 4055902 (1977-11-01), Jolley et al.
patent: 4250626 (1981-02-01), Lazar
patent: 4441375 (1984-04-01), Minohara et al.

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