Mutual induction correction

Details Mutual induction correction Mutual induction correction

G - Physics

01

V

G01V 3/10 (2006.01) A61B 5/06 (2006.01)

Patent

CA 2249982

Apparatus for generating magnetic fields, including a plurality of radiator coils (22, 24, 26) and driver circuitry (30, 32, 33) coupled thereto, which drives the coils so as to generate magnetic fields at a plurality of driving frequencies, wherein each of the plurality of radiator coils (22, 24, 26) generates a field substantially only at a single, respective driving frequency. Preferably circuitry is associated with at least one of the plurality of radiator coils (22, 24, 26) for substantially eliminating magnetic fields generated by the other coils.

L'invention concerne un appareil pour générer des champs magnétiques, comprenant une pluralité d'enroulements émetteurs (22, 24, 26) et de circuits de commande (30, 32, 33) associés qui assurent la commande des enroulements, de manière à générer des champs magnétiques à une pluralité de fréquences de commande, où chaque enroulement de la pluralité d'enroulements d'émetteurs (22, 24, 26) génère un champ, à une seule fréquence de commande respective uniquement. De préférence, le circuit est associé avec au moins un enroulement émetteur de la pluralité d'enroulements émetteurs (22, 24, 26), pour éliminer sensiblement les champs magnétiques générés par les autres enroulements.

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