New robust coil sensors for near field characterization

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 c...

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Bibliographic Details
Published inJournal of Microwaves, Optoelectronics and Electromagnetic Applications Vol. 8; no. 1; pp. 64S - 77S
Main Authors Vincent, Benjamin, Chadebec, Olivier, Schanen, Jean-Luc, Sartori, Carlos Antonio França, Krähenbühl, Laurent, Perrussel, Ronan, Berger, Kévin
Format Journal Article
LanguageEnglish
Published Brazilian Microwave and Optoelectronics Society 01.08.2009
Subjects
Electric power
Engineering Sciences
multipolar expansion
radiated EMC
radiated electromagnetic sources characterization
Coils electromagnetic sensors
near field measurements
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Summary: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.
ISSN:2179-1074
2179-1074