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Geophysical sensor mounting with improved ground coupling

A geophysical and sensor technology, applied in geophysical measurement, instrumentation, seismology, etc., can solve the problems of loss, easy displacement of marks, etc., and achieve the effect of improving reproducible coupling

Inactive Publication Date: 2017-05-10
GEOPHYSICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While the ability to mark sensor locations with markers (such as flags) is possible, such markers are prone to displacement or loss

Method used

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  • Geophysical sensor mounting with improved ground coupling
  • Geophysical sensor mounting with improved ground coupling
  • Geophysical sensor mounting with improved ground coupling

Examples

Experimental program
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Embodiment Construction

[0020] Exemplary geophysical sensors with improved ground contact coupling according to the present disclosure can be designed such that ground contact sleeves can be installed into the earth (e.g., on the ground or on the bottom of the water) by a number of methods each particularly suited to different surface conditions. ). Parts of the ground-contacting sleeve as defined herein are not the only options, and this description does not limit the disclosure to any particular type or number of designs. In general, a ground-contacting sleeve according to the present disclosure may have at least one feature on its exterior surface that increases the exterior surface area of ​​the ground-contacting sleeve beyond that of a generally smooth, rounded surface.

[0021] refer to image 3 , an exemplary ground-contacting sleeve 100 is shown that may be configured to be "punched" or squeezed into the ground (ie, topsoil) by using a hydraulically powered pointed punching device , wherein...

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Abstract

A nodal geophysical sensing system includes a ground contact sleeve defining an interior space and having at least one feature on an exterior thereof for contacting and compressing ground materials adjacent the exterior. The nodal geophysical sensor has a housing, which engages at least one feature on the interior space so as to enable acoustic energy transmission between the ground contact sleeve and the housing.

Description

Background technique [0001] This disclosure relates to the field of geophysical surveying instruments. More specifically, the present disclosure relates to geophysical survey instruments, such as seismic sensors, that require good acoustic coupling to the ground. [0002] Seismic sensors require good acoustic coupling to the ground, which can be characterized by a sensing element that detects ground motion with negligible signal loss or change in vibration characteristics as vibrations are transferred from the ground to the sensing element. When a sensing element (e.g., a geophone or other particle motion responsive sensor) is placed in, for example, loose topsoil, the quality of the detected signal is compared to if the sensing element is placed in compacted soil The detected signal quality is lower in the case of , which is due to the energy particle distribution caused by the increased degrees of freedom. In addition, the rapid expansion of computing power offers the poss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00
CPCG01V1/166G01V2210/1425G01V1/168G01V1/24Y10S181/401
Inventor R.A.德纳G.L.斯科特
Owner GEOPHYSICAL TECH