Magnetic heading reference

Details Magnetic heading reference Magnetic heading reference

1974-12-11

1976-03-16

Woodiel, Donald O.

Measuring and testing

Navigation

Take-off and landing monitors

33356, G01C 2100

Patent

active

039437639

ABSTRACT:
This invention employs a magnetometer as a magnetic heading reference for a vehicle such as a small aircraft. The magnetometer is mounted on a directional dial in the aircraft in the vicinity of the pilot such that it is free to turn with the dial about the yaw axis of the aircraft. The invention includes a circuit for generating a signal proportional to the northerly turning error produced in the magnetometer due to the vertical component of the earth's magnetic field. This generated signal is then subtracted from the output of the magnetometer to compensate for the northerly turning error.

REFERENCES:
patent: 2998727 (1961-09-01), Baker

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