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A magnetotelluric data acquisition method, device and terminal equipment

A data acquisition and magnetotelluric technology, applied in the field of electromagnetic detection, can solve the problem of incomplete correlation of measuring point signals, and achieve the effect of eliminating noise

Active Publication Date: 2020-11-27
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a magnetotelluric data acquisition method, device and terminal equipment to solve the problem of incomplete correlation between remote reference points and measuring point signals in the prior art

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  • A magnetotelluric data acquisition method, device and terminal equipment
  • A magnetotelluric data acquisition method, device and terminal equipment
  • A magnetotelluric data acquisition method, device and terminal equipment

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Embodiment 1

[0027] figure 1 A schematic flow chart of a magnetotelluric data acquisition method provided by an embodiment of the present invention is described in detail as follows:

[0028] S101: Obtain the coordinate positions of a plurality of far reference points; wherein, the plurality of far reference points take the central point of the detection area as a symmetrical center and are in a centrally symmetrical relationship.

[0029] Among them, the detection area refers to the area where electromagnetic sounding is to be carried out, the center point of the detection area refers to the measuring point at the central position of the detection area, and the multiple far reference points take the center point of the detection area as the symmetrical center and have a central symmetric relationship. It means that the distances from each far reference point to the center point of the detection area are equal.

[0030] Specifically, coordinate positions of multiple far reference points m...

Embodiment 2

[0063] image 3A schematic flow chart of another magnetotelluric data acquisition method provided by the embodiment of the present invention is described in detail as follows:

[0064] S201: If multiple far reference points are two far reference points, obtain the coordinate positions of the eastward far reference point and westward far reference point, or the southward far reference point and the coordinate location of the far reference point in the north direction.

[0065] The obtained coordinate positions of the two far reference points are as follows: Figure 4 as shown, Figure 4 is a schematic diagram of the magnetotelluric sounding system with two far reference points in the east-west direction, the two far reference points are the east far reference point and the west far reference point, and the east far reference point and the west far reference point are The center point of is the center of symmetry, two far reference points in a centrosymmetric relationship. ...

Embodiment 3

[0110] Figure 6 A schematic structural diagram of a magnetotelluric data acquisition device provided by an embodiment of the present invention, the device includes: a position acquisition module 61 , an electromagnetic data receiving module 62 and a data processing module 63 . in:

[0111] The position acquiring module 61 is configured to acquire the coordinate positions of multiple far reference points; wherein, the multiple far reference points take the central point of the detection area as a symmetrical center and are in a centrally symmetrical relationship.

[0112] Further, the location acquisition module 61 is specifically used for:

[0113] If the multiple far reference points are four far reference points, the east far reference point, west far reference point, south far reference point and north far The coordinate position of the reference point;

[0114] If the plurality of far reference points are two far reference points, then obtain the coordinate positions o...

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Abstract

The invention belongs to the technical field of electromagnetic detection, and provides a magnetotelluric data collecting method and device and terminal equipment. The existing mode that electromagnetic data of one far reference point are collected is changed into the mode that electromagnetic data of multiple far reference points having the centrosymmetric relation based on a detection area center point are collected, then the received electromagnetic data of the multiple far reference points are subjected to timing sequence superposition processing, standard time sequence data are obtained,according to the electromagnetic field signal superposition principle that the mean value of electromagnetic fields of every two points is equal to the electromagnetic field value of the correspondingmiddle point, the obtained standard timing sequence data are equal to the electromagnetic data of the detection area center point accordingly, the problem that a signal of one of the far reference points and a signal of a detection area are incompletely related is solved, then all measuring points of the detection area are subjected to far reference processing through the standard timing sequencedata, and noise not related to magnetotelluric signals is further eliminated.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic detection, and in particular relates to a magnetotelluric data collection method, device and terminal equipment. Background technique [0002] The traditional geodetic sounding method determines the distribution of the resistivity of the underground medium by measuring the change of the natural electromagnetic field, and then infers the situation of the underground structure and formation. However, in the actual measurement process, the complex terrain and environment make the measurement results will be interfered by various noises, resulting in inaccurate measurement results, and it is extremely difficult to carry out measurement work in strong noise interference areas such as towns and mining areas. A remote reference magnetotellurics method (RemoteReference Magnetotellurics Method). [0003] The existing far reference magnetotelluric method introduces a far reference point, that is, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/40
CPCG01V3/40
Inventor 何展翔韩鹏周媛媛杨港
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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