发明名称 |
Seismic vibration source |
摘要 |
A system for vibrating the earth in a location where seismic mapping is to take place, including forming a relatively shallow hole in the earth such as a hole 10 feet deep, placing a solid propellant in the hole, sealing a portion of the hole above the solid propellant with a device that can rapidly open and close to allow a repeatedly interrupted escape of gas, and igniting the propellant so that high pressure gas is created which escapes in pulses to vibrate the earth.
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申请公布号 |
US4148375(A) |
申请公布日期 |
1979.04.10 |
申请号 |
US19770826326 |
申请日期 |
1977.08.22 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
DOWLER, WARREN L.;VARSI, GIULIO;YANG, LIEN C. |
分类号 |
G01V1/133;(IPC1-7):G01V1/04 |
主分类号 |
G01V1/133 |
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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