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Exploration device

A technology of shielding device and electromagnetic field, applied in the field of exploration devices, can solve problems such as lowering the accuracy of exploration results, and achieve the effects of reducing false anomalies, improving interpretation quality, and eliminating investment

Inactive Publication Date: 2016-04-06
卜传新
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In practical applications, the secondary induction eddy current field caused by the underground medium in the whole airspace observed by the mine transient electromagnetic method leads to a decrease in the accuracy of the exploration results

Method used

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0026] refer to figure 1 , a surveying device provi...

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Abstract

The invention provides an exploration device, which relates to an exploration method in the field of underground exploration. The exploration method is a mine transient electromagnetic method. The exploration device comprises a transmitting and receiving antenna for transmitting a primary transient electromagnetic field and receiving a secondary induced electromagnetic field excited by the primary transient electromagnetic field and an electromagnetic field shielding antenna. The electromagnetic field shielding antenna is arranged at the other side in the detection direction of the transmitting and receiving antenna, that is, the direction opposite to the detection direction, and thus, the electromagnetic field spread from the reverse direction of the detection direction or the primary transient electromagnetic field or the secondary induced electromagnetic field transmitted to the reverse direction of the detection direction is shielded, the receiving antenna can be prevented from receiving the electromagnetic field spread in the reverse direction or the transmitting antenna can be prevented from transmitting the secondary induced electromagnetic field which influences the detection result and is excited by the primary transient electromagnetic field to the reverse direction of the detection direction, and the detection accuracy is improved.

Description

technical field [0001] The invention relates to the field of underground exploration, in particular to an exploration device. Background technique [0002] In the underground exploration work, geophysical exploration methods are commonly used to divide the structure of the stratum, determine the location of the fault structure, find out the undulating shape of the bedrock surface, and judge the occurrence of groundwater and mineral deposits. The usual way to solve the above problems is to use mine transient electromagnetic method to observe the eddy current anomaly field of electrically inhomogeneous bodies, and then infer the existence and location of underground blind bodies such as ore bodies, groundwater, and geological structures. Mine transient electromagnetic method is a method of transmitting a transient electromagnetic field underground by using an ungrounded return line, and using a coil to observe the secondary induced eddy current field caused in the underground ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/26H01Q1/22
CPCG01V3/26H01Q1/22
Inventor 卜传新
Owner 卜传新
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