Device for emitting seismic vibration waves

G - Physics – 01 – V

Patent

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Details

G01V 1/00 (2006.01) G01V 1/143 (2006.01)

Patent

CA 2560217

The invention relates to a device for emitting seismic vibration waves mountable on a movable platform (100) comprising a vibration system for transmitting the waves into the ground and a system for supporting a device (200) on the ground, wherein the system for supporting on the ground is fixable to the movable platform (100) and transfers a charge to a ground-mounted vibration system in a ground support direction (1). Said ground-mounted vibration system is fixable to the system for supporting on the ground by compensation means (251, 252, 253) for compensating perpendicularity defects between the ground general plane and the ground support direction (1). Said invention is characterised in that said compensation means comprises elongated elements which are exposed to tensile strength along the longitudinal axes thereof, respectively and rotatably mounted by each free end thereof around at least one axis of rotation which is substantially perpendicular to the ground support direction (1), wherein the axes of rotation of each elongated element are fixed to the vibration system and to the fixed part of the system for supporting on the ground.

L'invention concerne un dispositif pour émettre des ondes de vibrations sismiques destiné à être monté sur une plateforme mobile (100), comprenant: - un ensemble de vibration pour émettre les ondes dans le sol, et - un ensemble de maintien au sol du dispositif (200), l'ensemble de maintien au sol étant destiné à être fixé à la plateforme mobile (100) et à en reporter la charge, selon une direction de maintien au sol (1), sur l'ensemble de vibration plaqué au sol, l'ensemble de vibration étant fixé à l'ensemble de maintien au sol par des moyens de compensation (251, 252, 253) aptes à compenser les défauts de perpendicularité entre le plan général du sol et la direction de maintien au sol (1), caractérisé en ce que ces moyens de compensation comprennent des éléments longilignes aptes à être sollicités en traction selon leurs axes longitudinaux respectifs, les éléments longilignes étant montés à chacune de leurs extrémités libres de rotation autour d'au moins un axe de rotation sensiblement perpendiculaire à la direction de maintien au sol (1), les axes de rotation de chaque élément longiligne étant fixés pour l'un à l'ensemble de vibration et pour l'autre à une partie fixe de l'ensemble de maintien au sol.

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