3D magnetic sensors

Analytic solution for the problem of in-situ calibrating magnetometric 3D-probes based on non-orthogonally placed hall devices.

This work presents a method of in-situ calibrating 3D magnetic sensors based on Hall devices that have linear field characteristics and are non-orthogonal, with known position of each Hall device in relation to the 3D sensor’s substrate. Formulas for calculation of Hall devices linear coefficients are obtained. The method’s efficiency is proved experimentally.