Apparatus and method for measuring gravity

G - Physics – 01 – V

Patent

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G01V 7/16 (2006.01)

Patent

CA 2212676

An apparatus and method of measuring gravity is described. The gravimetry apparatus includes two rigidly connected accelerometer triads and a global positioning system antenna defining a kinematic reference point. The apparatus has a specific layout where the nominal centre of the accelerometer triads and the kinematic reference point are collinear and the corresponding accelerometers of the two triads are parallel. In this gravimetry system, the lever arm correction is measured internally and the magnitude of gravity is calculated without the need for stabilized platforms or measurement of the spatial orientation of the gravimeter.

Appareil et méthode pour mesurer la gravité. L'appareil gravimétrique comporte deux triplets d'accéléromètres à montage rigide et une antenne de système de positionnement global définissant un point de référence cinématique. L'appareil commande un schéma de montage spécifique dans lequel le centre nominal des triplets d'accéléromètres et le point de référence cinématique sont colinéaires et que les accéléromètres correspondants des deux triplets d'accéléromètres sont disposés parallèlement.

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