Direction finding device and guidance system

Details Direction finding device and guidance system Direction finding device and guidance system

1977-01-03

1978-08-08

Martin, Jr., William D.

Geometrical instruments

Indicator of direction of force traversing natural media

Diverse directional indicator

33 1R, 33356, 33361, 335205, G01C 1730

Patent

active

041048032

ABSTRACT:
A direction finding device employs a magnetic field sensor utilizing a vibrating magnetic reed switch with adjustable magnetic bias to vary the sensitivity or dead band. By sensing magnetic North, it indicates audibly, visually or by nerve stimulus any departure from a preset course. When attached to a moving object or person it serves as a warning or guidance system.

REFERENCES:
patent: 1221738 (1917-04-01), Isom
patent: 3237584 (1966-03-01), Keithley, Jr.
patent: 3252057 (1966-05-01), Hoeppel
patent: 3349323 (1967-10-01), Mullen
patent: 3355942 (1967-12-01), Freeman
patent: 3802088 (1974-04-01), Barrett et al.

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