Satellite electric charge buildup monitor

B - Operations – Transporting – 64 – G

Patent

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Details

B64G 1/54 (2006.01)

Patent

CA 2516110

An electric charge buildup monitor for a satellite includes an electrically conducting housing (12) including at least two compartments (13) with each compartment including a dielectric slab (16) contained therein. An electrically conducting electrode (18) is embedded in each dielectric slab (16) a pre-selected distance below the top surface, the housing (12) being mountable on a satellite with the top surface facing outwardly into space away from the satellite whereby charged particles emitted from sources external to the satellite penetrate the dielectric slab (16) resulting in charge accumulation in each electrically conducting electrode (18), the electrodes being electrically isolated from each other. The monitor includes an electrical voltage detector for sensing the floating DC voltage developed on the electrically conducting electrode in each dielectric slab, due to the charge accumulation, and converting the DC voltage into an AC voltage representative of a charge buildup on each electrically conducting electrode.

Un dispositif de contrôle d'accumulation de charge pour un satellite comprend un boîtier électroconducteur (12) comportant au moins deux compartiments (13) contenant chacun une plaque diélectrique (16). Une électrode électroconductrice (18) est intégrée dans chaque grille diélectrique (16) à une distance présélectionnée au-dessous de la surface supérieure. Ledit boîtier (12) se monte sur un satellite, sa surface supérieure tournée vers l'extérieur du satellite, vers l'espace, les particules chargées émises par les sources externes au satellite pénètrent dans la plaque diélectrique (16) et induisent ainsi l'accumulation de charge dans chaque électrode électroconductrice (18), les électrodes étant isolées électriquement les unes des autres. Le dispositif de contrôle comporte un détecteur de tension électrique conçu pour mesurer la tension CC flottante développée sur l'électrode électroconductrice dans chaque plaque diélectrique, en raison de l'accumulation de charge, et pour convertir la tension CC en tension CA représentative de l'accumulation de charge sur chaque électrode électroconductrice.

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