Electronic equipment with geomagnetic direction sensor

Details Electronic equipment with geomagnetic direction sensor Electronic equipment with geomagnetic direction sensor

1986-09-02

1987-05-26

Miska, Vit W.

Horology: time measuring systems or devices

Combined with disparate device

368 14, 33354, 33361, G04B 4700, G04B 4706, G01C 900

Patent

active

046681000

ABSTRACT:
Electronic equipment has, in its case, a flux gate magnetic sensor with an excitation coil and a sensing coil wound around an annular magnetic core made of high permeability material, an integrated circuit including a magnetic field detector, cooperating with the magnetic sensor for detecting an external magnetic field and an operation circuit for operating the geomagnetic direction, a display device for displaying at least the geomagnetic direction, and a power source battery. The flux gate magnetic sensor is arranged along the inner surface of the case and the battery is arranged within the annular magnetic core of the magnetic sensor.

REFERENCES:
patent: 3903610 (1975-09-01), Heaviside et al.
patent: 4337530 (1981-06-01), Toft, Jr.
patent: 4482255 (1984-11-01), Gygax et al.
patent: 4495467 (1985-01-01), Kuno et al.

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