Furuno Electric Company Limited

Atsushi Abe

Kiyomi Minohara

Yoshio Sakai

Toshihiro Niidome

Rotary encoder having absolute angle patterns and relative angle patterns

A gyro compass according to the present invention includes an inclinometer for detecting inclination of the spin axis of a rotor with respect to the earth's surface, a horizontal axis torque applying device for exerting a torque about the horizontal axis of the rotor, a vertical axis torque applying device for exerting a torque about the vertical axis of the rotor, and an equilibrium tilt angle storing device for storing an inclination angle of the rotor while the gyro compass is in the equilibrium state. An inclination adjustment controlling device for adjusting an inclination angle stored of the rotor to the inclination angle in the equilibrium state by controlling the vertical axis torque applying device.

Gyro compass

The present invention is directed to a gyroscopic instrument comprising concentric containers, the inner container enclosing a rotating electric gyro rotor, magnetic fluid enclosed between the inner and outer concentric containers, and magnetic flux producing means mounted on at least one of the two concentric containers, so that magnetic fluxes reach the magnetic fluid to support the inner container without contacting the outer container. The magnetic flux producing means are preferably mounted and oriented on a line drawn on at least one of the concentric containers at predetermined distances so that magnetic fluxes transmitted from the pole of one flux means reach the opposite pole of an adjacent means by passing through the magnetic fluid.

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Suita, Japan

Atsushi Abe