A gravity gradiometer

G - Physics – 01 – V

Patent

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Details

G01V 7/16 (2006.01)

Patent

CA 2729571

The present disclosure provides a gravity gradiometer that comprises a detector for detecting a gravity gradient. The detector comprises at least one movable sensing element and that is arranged to generate a signal in response to a change in gravity gradient. The gravity gradiometer also comprises a support structure for supporting the detector in an aircraft and a component that is arranged to reduce transmission of an aircraft acceleration to the detector. The at least one movable sensing element and the support structure together are arranged to reduce an influence of the aircraft acceleration on the signal by a factor of at least 10 7 when the gravity gradiometer is airborne and exposed to the aircraft acceleration.

La présente invention concerne un gradiomètre de gravité qui comprend un capteur permettant de détecter un gradient de gravité. Le capteur comprend au moins un élément de détection mobile et est conçu pour générer un signal en réponse à un changement du gradient de gravité. Ledit gradiomètre comprend également une structure de support permettant de soutenir le capteur dans un aéronef et un composant qui est conçu pour réduire la transmission dune accélération de laéronef vers le capteur. Le ou les éléments de détection mobiles et la structure de support sont conçus ensemble pour réduire dun facteur dau moins 107 une influence de laccélération de laéronef sur le signal lorsque le gradiomètre de gravité est en vol et exposé à laccélération de laéronef.

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