Gravity gradiometer

G - Physics – 01 – V

Patent

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Details

G01V 7/00 (2006.01) G01V 7/08 (2006.01) G01V 7/16 (2006.01)

Patent

CA 2612602

A gravity gradiometer is disclosed which comprises a pair of sensor masses 41, 43 arranged in housings 45, 47. Transducers 71 are provided for measuring movement of the sensor masses in response to the gravity gradient tensor. The masses are supported for movement by a flexure web 59 between the mass and a support and a stop comprises a pair of abutment services 554, 555 and 558, 559 defined by a cut 550 prevent movement of the sensor masses 41, 43 beyond the elastic limit of the flexure web 59.

L'invention concerne un gradiomètre de gravité comportant une paire de masses de détection (41, 43) disposées dans des boîtiers (45, 47). Des transducteurs (71) servent à mesurer le mouvement des masses de détection en réponse au tenseur de gradient de gravité. Les masses sont supportées de façon mobile par une toile flexible (59) disposée entre la masse et un support, et une butée comportant une paire d'éléments d'arrêt (554, 555; 558, 559) définis par une découpe, empêche le mouvement des masses de détection (41, 43) au-delà de la limite élastique de la toile flexible (59).

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