Geometrical instruments – Indicator of direction of force traversing natural media – Magnetic field responsive
Patent
1990-08-31
1992-01-14
Haroian, Harry A.
Geometrical instruments
Indicator of direction of force traversing natural media
Magnetic field responsive
33364, 33355R, G01C 1726
Patent
active
050798456
ABSTRACT:
A magnetic compass in which a conventional compass card provides an analog readout of compass heading and a binary coded digital disk together with fiber optic sensing technology provides a digital readout of compass heading contained within a single housing, together with a gravity driven inclinometer providing a measurement of the inclination of the ground. The compass magnet is shielded by Faraday type shielding from the electronics that processes the digital reading. An analog electronic readout of both compass heading or inclination, capable of remote display, is provided by a tapered iris disk and fiber optic reader combination. A magnetic compass employing a compass disk with a reflecting tapered iris on one side of the disk sensed by a reflecting fiber optic reader and a standard compass card on the other side which can be read visually provides an improved magnetic compass being very compact and providing both analog and digital readouts.
REFERENCES:
patent: 1221738 (1917-04-01), Isom
patent: 1885098 (1932-10-01), Hill
patent: 4095348 (1978-06-01), Kramer
patent: 4146970 (1979-04-01), Edwards
patent: 4577414 (1986-03-01), Migliori et al.
Futurity Technologies, Inc.
Haroian Harry A.
Lenchek Allen M.
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