公开(公告)号：US3541866A

公开(公告)日：1970-11-24

申请号：US3541866D

申请日：1968-02-13

Applicant: CSF

Inventor： MATHEY RAYMOND ,  PICARDAT BERNARD

IPC: G01P15/10

CPC classification number: G01P15/10

公开(公告)号：US3611809A

公开(公告)日：1971-10-12

申请号：US3611809D

申请日：1968-07-02

Applicant: CSF

Inventor： CANTAT MICHEL ,  MATHEY RAYMOND

IPC: G01V7/00 ,  G01V7/04

CPC classification number: G01V7/005 ,  G01V7/00

Abstract: A VIBRATING STRING GRAVIMETER COMPRISING, INSIDE A HOUSING, A MASS SUSPENDED ON A VIBRATING STRING, WHICH IS ATTACHED TO THE HOUSING AND VIBRATES IN THE FIELD OF A PERMANENT MAGNET. AT LEAST TWO ELASTIC PARALLEL DIAPHRAGMS ATTACH THE MASS TO THE HOUSING. THE MASS AND THE HOUSING HAVE PLANE AND POLISHED HORIZONTAL SURFACES FACING EACH OTHER AND AT A DISTANCE FROM EACH OTHER ADJUSTED FOR DAMPING THE DISPLACEMENTS OF THE MASS BY LAMINATION OF AIR BETWEEN THESE SURFACES.

公开(公告)号：US3592062A

公开(公告)日：1971-07-13

申请号：US3592062D

申请日：1969-10-31

Applicant: THOMSON CSF

Inventor： MATHEY RAYMOND

IPC: G01V7/00 ,  G01V7/16

CPC classification number: G01V7/005

Abstract: A vibrating strings gravimeter comprising a mass secured to a frame by two vertical strings having different characteristics, such as length. A mechanical tension is applied to these strings and is adjusted as a function of the mass and of these characteristics for minimizing the effect of parasitic alternating acceleration on the measure of the gravitational acceleration.

公开(公告)号：US3435687A

公开(公告)日：1969-04-01

申请号：US3435687D

申请日：1966-02-16

Applicant: CSF

Inventor： MATHEY RAYMOND ,  PICARDAT BERNARD ,  LECOCQ ROBERT

IPC: G01C19/5635 ,  G01P15/10

CPC classification number: G01C19/5635