The invention relates to a compass or direction determination device comprising one or more rotation sensitive sensors and means for rotating the one or more rotation sensitive sensors, wherein the means for rotating is configured to produce two or more ro...

A six-direction indicator (10) is provided in an XYZ rectangular coordinate system and includes a shaft (221) on an X axis, a rotation member (18) rotatable around an axis inclined at 35.26° with respect to a rotation axis, guide pins (24A to 24D) provide...

A method and system for navigation quality estimation is provided. The method comprises obtaining an alignment observation, comparing the alignment observation to a current heading estimate, and updating the current heading estimate based on the comparison...

The compass has a transformer (14,16) with a winding on the primary element which is connected via an H bridge circuit (12) to a controllable input voltage source (10). The transformer also has at least one secondary winding on the other transformer core. ...

Angle detection device with data transmission path on an n-360° bearing with at least one scanning disk (21) arranged perpendicular to the axis of rotation on one of two components and electro-optical illumination and detection means on the respective com...