Instruments for Measuring the Gradient of the Absolute Values of the Magnetic Field

Abstract

Magnetic prospecting is widely used for mineral exploration and the study of the structure of the earth's surface. For the realization of magnetic reconnaissance are applied the instruments sensitive to the magnetic field, that give the possibility to measure different components of magnetic field and its gradients. In this article, three new devices are considered that allow measuring the gradient of the absolute values of the magnetic field.