METHOD FOR CALIBRATING ELECTRONIC MAGNETIC COMPASS Russian patent published in 2017 - IPC G01C17/38 

FIELD: physics.

SUBSTANCE: method for calibrating an electronic magnetic compass comprises the stages, at which the compass is mounted on the plane so that the magnetic field receivers of its orthogonal axes 0X and 0Y lie in this plane, the compass is rotated around the axis 0Z perpendicular to this plane, and is fixed into four, i=1÷4, orthogonal positions, the signals of the magnetic field receivers M_xi and M_yi are measured in each compass position by the axes 0X and 0Y, the static compass errors m_x and m_y are evaluated for each of the compass axes by determining the average values of the signals M_xi and M_yi in all the compass positions: ; the k-ratio of the compass receiver sensitivities is determined by the axes 0X and 0Y, the axis 0X is combined with the movement direction when using the compass, the signals of the magnetic field receivers B_x and B_y are measured by the axes 0X and 0Y, and the true direction to the manetic pole in the plane X0Y is calculated by the formula: α=arctg[(B_y-m_y)/(k(B_x-m_x)], wherein the k-ratio of the compass receiver sensitivities is calculated by the axes 0X and 0Y as the ratio of the magnetic field vector modules obtained by using all the measurements on the axis Y and the axis X: .

EFFECT: increasing the accuracy of calibrating the magnetic compass.

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