New robust coil sensors for near field characterization
Résumé
This work introduces a new generation of magnetic field sensors, based on the spherical harmonic decomposition concept. The measurement principle is similar to a spatial filtering: according to the coil shape, the sensors are just sensitive to a specific component of the multipolar expansion. Five coil shapes are determined, in order to account for the first two orders of the multipolar expansion. The way of determining the coil shape is first explained, and a validation is proposed using a finite element software.
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