METHOD OF DETERMINING PARAMETERS OF TRANSFORMATION CHARACTERISTICS OF THREE-COMPONENT MAGNETOMETER Russian patent published in 2013 - IPC G01R35/00 

FIELD: physics.

SUBSTANCE: method of determining parameters of transformation characteristic of a three-component magnetometer by rotating in a reference coordinate system its geometric axes which are superimposed with corresponding axes of the reference coordinate system and rigidly connected to its magnetically sensitive axes involves preliminary measurement of the projections of the magnetic induction vector of the Earth's field on the axis of the reference coordinate system and transforming, using the magnetometer, projections of that vector to its magnetically sensitive axes, respectively, at different positions of its two geometric axes lying in one of the planes of the reference coordinate system with fixed revolutions thereof, for example, by angles which are multiples of 90° about the third geometric axis. Four transformations of projections of the magnetic induction vector of the Earth's field to magnetically sensitive axes are performed using the magnetometer, with fixed revolutions, for example by angles which are multiples of 90°, of the geometric axes in at least two mutually perpendicular planes of their location and the measured projections of the magnetic induction vector of the Earth's field and transformation results, given in form of functions of revolution angles and overall representing systems of independent linear equations are used to determine the unknown parameters of the transformation characteristic in form of a solution of said systems of equations, the uniqueness of the solution of which is a condition for pre-selection of the angle of revolution.

EFFECT: high measurement accuracy.

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