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Method and system for synchronous detection and real-time inversion of magnetotelluric

A synchronous detection, magnetotelluric technology, applied in the direction of electromagnetic wave detection, radio wave measurement system, electric/magnetic exploration, etc., can solve the problems of no application, long inversion time of observation data, obstacles to synchronous detection, etc., to improve work efficiency, avoid the influence of spatiotemporal factors, and improve the quality of observational data

Active Publication Date: 2019-06-04
HUNAN UNIV OF SCI & TECH
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Problems solved by technology

[0005] At present, most of the synchronous detection and real-time inversion technologies of the magnetotelluric sounding equipment at home and abroad have not been applied to the actual detection work. Generally, only one device is used in the detection operation to detect the measurement points one by one. For larger Even if the same equipment is used for online work, high equipment prices and complicated online operations become obstacles to synchronous detection. In terms of performance, the work mode of on-site data collection and indoor inversion data is generally adopted. A large amount of observation data requires a long inversion time, which cannot guide on-site observation work.

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[0017] 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. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0018] See attached figure 1 , is a system structure diagram of N=3 in the present invention. A method and system for magnetotelluric synchronous detection and real-time inversion, the system is composed of a detection and inversion host (M) and N 2 - 1 pairwise detection and inversion extension with wireless communication function (S i ) consists ofi = 1, 2, ..., N 2 -1, N is an odd number; the detection and inversion host is responsible for the collection of m...

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Abstract

The invention discloses a method and system for magnetotelluric synchronous detection and real-time inversion. The system includes a detection and inversion host (M) with a wireless networking function and N2‑1 pairwise distances D with a wireless communication function. The detection and inversion extension (Si) of , where i=1, 2, ..., N2‑1, N is an odd number. The detection and inversion host is responsible for the collection of magnetic field signals in the survey area and the electric field signals at the measurement points, wireless networking and coordination, synchronous detection and real-time inversion control of each detection and inversion extension, and the detection and inversion extension is in the coordination of the detection and inversion host Under the control, the electric field signal acquisition of the measuring point and the real-time inversion of the detection data of the measuring point are carried out synchronously. The beneficial effect of the present invention is that: the detection and inversion main machine and the detection and inversion sub-machine synchronously perform detection and inversion in real time, avoiding the influence of time and space factors and improving the quality of observation data while improving work efficiency, and can be widely used in underground mineral resource detection, crust and Structural exploration of the upper mantle, etc.

Description

technical field [0001] The invention relates to a geophysical exploration method and system for magnetotelluric sounding, in particular to a method and system for magnetotelluric synchronous detection and real-time inversion. Background technique [0002] Magnetotelluric method (MT, Magneto-telluric) is a kind of geophysical exploration that uses the high-altitude vertically incident natural alternating electromagnetic wave as the excitation field source, and studies the electrical structure of underground geological bodies by observing the mutually orthogonal electric and magnetic fields on the surface. method. Because the magnetotelluric sounding method has the advantages of no artificial source, less labor requirements, low work cost, not shielded by high-resistivity layers, sensitive to low-resistivity layers, large exploration depth, strong resolution, and narrow equivalence range, etc., Therefore, it has received greater attention and developed rapidly since it was pr...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/38
CPCG01V3/38G01V3/08G01V1/364G01V3/12G01V1/282G01V1/48
Inventor 黄采伦南茂元王靖王安琪田勇军孙恺欧阳利
Owner HUNAN UNIV OF SCI & TECH
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