Вопросы совместной обработки градиентных измерений в высокочувствительной магнитометрии

Abstract

В интересах снижения влияния собственного магнитного поля носителя магнитометрической аппаратуры на показания магнитометра исследованы градиенты 1-го и 2-го порядков для z-компоненты вектора магнитной индукции произвольно ориентированного магнитного диполя. Рассмотрены особенности совместной обработки градиентных измерений.

We explore the first and the second-order of the derivative magnetic flux vector in relation to altitude in order to reduce internal magnetic field of the magnetometric equipment carrier influence on the readings of the vector supersensitive magnetometer. We consider the details of gradient measurements integrated processing in multidirectional magnetic dipole approximation. The average intensity altitude-component in the second-order gradiometer is by an order of magnitude more than one of the firstorder gradiometer without regard to the distance between the magnetic dipole and sensor. We confirm that every first and second-order gradient altitude-component disappears in the half-domain of the spherical angular values definition. The integrated processing of gradient measurements imposes the constraint on the domain of the spherical angular values definition. We conclude that this constraint may be controlled by limiting the corrected gradient projection in relation to the root-mean-square deviation.