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Magnetometer In Inertial Measurement Unit
Oct 19, 2018

The magnetometer is the only sensor that can point you to the reference. The magnetometer measures the local magnetic field and compares it with the geomagnetic field model to estimate the attitude of the measured object. But almost everything has an impact on the local magnetic field: electrical lines, solar activity, drones themselves, other sensors, transmitters, and even CPUs... that's why magnetometers should be as far away as possible from any interference.


The magnetic field is very susceptible to external disturbances. You can see that the pointer is not stable when you use a compass or an application with related functions on your phone to access a computer or metal object.


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