Method and device of three-dimensional collection of magnetotelluric data and terminal equipment

Abstract

The invention provides a method and a device of three-dimensional collection of magnetotelluric data and terminal equipment, which are suitable for use in the field of electromagnetic detection technology. According to the method, an interference zone center point is used as a symmetry center, multiple points showing a symmetrical relationship are used as reference points, electromagnetic data which are of all the reference points and all measurement points and are synchronously collected by collection equipment are received, thus existing operation of collecting electromagnetic data of a farreference point is changed to operation of collecting the electromagnetic data of the multiple reference points showing the center-symmetrical relationship on the basis of the interference zone centerpoint, and then carrying out time series superposition on the received electromagnetic data of the multiple reference points to obtain standard time series data, the obtained standard time series data is equivalent to electromagnetic data of the interference zone center point according to an electromagnetic field signal superposition principle that an average electromagnetic field value of two points is equal to an electromagnetic field value of a middle point, and a signal completely related to an interference zone signal is obtained.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic detection, and in particular relates to a three-dimensional acquisition method, device and terminal equipment of magnetotelluric data. Background technique [0002] Electromagnetic sounding refers to the determination of the distribution of the resistivity of the underground medium by measuring the change of the electromagnetic field, and then infers the situation of the underground structure and formation. Data acquisition, processing and interpretation are the three essential stages of electrical sounding. Only when high-quality data is collected, can it be possible to extract reliable information through further data processing and obtain correct geological interpretation. It can be seen that obtaining high-quality data is a crucial step for the entire electromagnetic sounding work. [0003] In the electromagnetic sounding, the traditional geodetic sounding method was used at first, wh...

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a three-dimensional acquisition method, device and terminal equipment of magnetotelluric data to solve the problem that the electromagnetic data collected at a far reference point in the prior art cannot be well obtained and completely consistent with the detection area signal. Issues related to signaling

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