发明名称 |
AN IMPROVED DEVICE FOR GENERATING IN THE GROUND TRANSVERSE ACOUSTIC WAVES |
摘要 |
<p>A device for generating in the ground longitudinal and transverse acoustic waves by a mass striking a target element coupled with the surface of the ground. The target element is recessed in a central part thereof and have an inner wall slanted with respect to the vertical in the form of, for example, a truncated cone. The mass is fixed to the end of an arm pivoting with respect to a support structure in the form of a parallelepipedic cage, which is movable by a cylinder between a high transport position and a low position in which the target element is coupled with the ground a drive causes raising of the mass by pivoting the arm with the geometry of the assembly being calculated so that the mass strikes the inner slanting faces perpendicularly thereto, and thus creates both P and S waves.</p> |
申请公布号 |
IN170635(B) |
申请公布日期 |
1992.04.25 |
申请号 |
IN1987MA91719 |
申请日期 |
1987.12.22 |
申请人 |
INSTITUT FRANCAIS DU PETROLE |
发明人 |
JACQUES CHOLET;PIERRE CLAUDE LAYOTTE |
分类号 |
G01V1/053;G01V1/147;(IPC1-7):G01V1/147 |
主分类号 |
G01V1/053 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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