Transient electromagnetic instrument and hydro-geologic prospecting method for mine

A technology of transient electromagnetic instrument and magnetometer, which is applied in the direction of electric/magnetic detection for well logging records, can solve the problems of short-distance detection blind areas of transient electromagnetic methods, and achieve the reduction of blind areas, high sensitivity detection, and improvement of The effect of accuracy

Inactive Publication Date: 2014-07-23
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a transient electromagnetic instrument and a mine hydrogeological prospec

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  • Transient electromagnetic instrument and hydro-geologic prospecting method for mine
  • Transient electromagnetic instrument and hydro-geologic prospecting method for mine
  • Transient electromagnetic instrument and hydro-geologic prospecting method for mine

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Embodiment Construction

[0013] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

[0014] Considering that the current transient electromagnetic method has a short-distance detection blind area problem, this embodiment provides a transient electromagnetic instrument, the receiving terminal of the transient electromagnetic instrument adopts a vector magnetometer structure, and the vector magnetometer includes a three-axis magnetometer. A fluxgate sensor (also called a three-axis fluxgate probe), the X, Y, and Z directions of the three-axis fluxgate sensor use miniature coils as the sensitive unit to detect the magnetic field containing the change information of the geological magnetic field Signal.

[0015] The transient electromagnetic instrument of this embodiment adopts a three-axis fluxgate sensor, and its internal X, Y, and Z directions have micro-coils as sensitive units, which can realize h...

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Abstract

The invention provides a transient electromagnetic instrument and a hydro-geologic prospecting method for a mine. A reception terminal of the transient electromagnetic instrument is of a structure of a vector magnetometer. The vector magnetometer comprises a three-axis flux-gate sensor. Micro coils are adopted as sensing units in the X, Y and Z directions of the three-axis flux-gate sensor and used for detecting magnetic field signals comprising change information of a geological magnetic field. According to the transient electromagnetic instrument, the three-axis flux-gate sensor is adopted, the micro coils as the sending units are arranged in the three-axis flux-gate sensor in the X, Y and Z directions, high-sensitivity detection can be carried out on the weak signals, dead areas of close-distance exploratory can be effectively reduced, and the detection accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of transient electromagnetic detection, in particular to a transient electromagnetic instrument and a mine hydrogeological exploration method. Background technique [0002] Coal is the main energy source in my country, accounting for more than 70% of the primary energy production and consumption structure, and occupies an important strategic position in the national economy. The mining depth of my country's coal mines has increased by more than 20m per year on average. With the continuous increase of mining depth and mining intensity, coal mine safety issues have begun to appear. Especially in recent years, the hazards of coal mine water inrush have become increasingly serious. During the "Eleventh Five-Year Plan" period, the National Coal Mine Water Disaster Analysis Report pointed out that from 2006 to 2010, there were 10,339 coal mine water disasters in the country, with a death toll of 16,811, of which 1...

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Application Information

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IPC IPC(8): G01V3/28
Inventor 张文栋胡杰李国才桑胜波李朋伟李刚
Owner TAIYUAN UNIV OF TECH
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