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Cornea George Mihai
Nilgesz Arnold
Flaviu Birouas Ionut
Tarca Radu

Hard iron distortion compensation for 3 axis magnetometer

Keywords: 3 axis magnetometer, compensation, hard iron,

This paper presents the way how the hard iron effect could be compensated and a way to implement it on a small power device such as a microcontroller. Because of the magnetized materials that can stay near a magnetometer sensor and because of the very small magnetic field of the Earth, before the use of the measured values from a magnetometer to determine the heading (angle with the N direction) of the sensor a compensation is needed.


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