Electronic compass system

Details Electronic compass system Electronic compass system

1989-09-28

1992-02-25

Noland, Tom

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

36457105, 364559, 33356, 33361, G01C 1738

Patent

active

050902318

ABSTRACT:
A digital compass system for use in a wide variety of motor vehicle models, especially in the automotive aftermarket, and including various features which simplify installation and calibration by non-professionals. A knowledge of magnetic direction is not required. During calibration, only true geographic directions are used throughout. While searching for a suitable location within the vehicle to mount the magnetic sensor, the installer is advised by the digital display unit of the system as to whether or not a given location contains excessively strong magnetic components.

REFERENCES:
patent: 3622764 (1971-11-01), Brendes et al.
patent: 3683668 (1972-08-01), Baker et al.
patent: 3728525 (1973-04-01), Adkar
patent: 4454583 (1984-06-01), Schneiderhan et al.
patent: 4546551 (1985-10-01), Franks
patent: 4720992 (1988-01-01), Hormel
patent: 4953305 (1990-09-01), Van Lente et al.

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