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: 110
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: 2024
: .., .., .., // . 110. .: , 2024. .310326. DOI: https://doi.org/10.25728/ubs.2024.110.12
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(.): calibration, tensor magnetogradiometers, magnetogradient measuring system
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(.): A technology for bench calibration of a tensor magnetogradient measuring system is proposed. The proposed algorithms are based on assessing the influence of a reference magnetic source, described by the spatial distribution of the scalar magnetic potential, on the calibrated magnetogradiometer. Algorithms have been developed for additional calibration of vector sensors, which must be performed at a point with a minimum magnetic field gradient or in a solenoidal field. An algorithm has been developed for estimating the position of the base sensor, which consists of sequential rotations of the magnetogradient measuring system around its center with a stationary calibrated field source. An algorithm has been developed for estimating the direction of the dipole moment vector for a known position of the sensor relative to the field source. An algorithm has been developed for estimating the position of vector sensors relative to the base one. An algorithm for calibration technology for a tensor magnetogradiometer has been developed. The implementation of the described calibration technology in conjunction with the calibration technology of existing magnetic induction sensors made it possible to ensure the calibration of all parameters of the magnetogradient measuring system and the determination of the exact relative position of the sensors and the relative orientation of all sensitivity axes.
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