Digital compass
Encyclopedia
A digital compass may be either a magnetometer
(such as a MEMS magnetometer
in hand-held devices) or a fibre optic gyrocompass
(as in a ship's navigation system).
Magnetometer
A magnetometer is a measuring instrument used to measure the strength or direction of a magnetic field either produced in the laboratory or existing in nature...
(such as a MEMS magnetometer
MEMS magnetic field sensor
-Introduction:Magnetic field sensing can be categorized into four general types depending on the magnitude of the measured field. If the targeted B-field larger than the earth magnetic field , the requirement on the sensitivity of the sensor is not aggressive. To measure the earth field larger than...
in hand-held devices) or a fibre optic gyrocompass
Fibre optic gyrocompass
A fibre optic gyrocompass is a compass and instrument of navigation. It is often part of a ships set of compasses, which also include a conventional gyrocompass and a magnetic compass....
(as in a ship's navigation system).