In-hole receiving antenna and signal processing method of three-component time-domain electromagnetic method

A time-domain electromagnetic and receiving antenna technology, applied in the field of signal processing, can solve the problems of difficult data processing, poor antenna receiving signal ability, etc., and achieve the effect of avoiding external interference

Inactive Publication Date: 2018-01-16
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the horizontal component receiving antenna made in this way is poor in receiving signals, which brings great difficulties to the later data processing

Method used

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  • In-hole receiving antenna and signal processing method of three-component time-domain electromagnetic method
  • In-hole receiving antenna and signal processing method of three-component time-domain electromagnetic method
  • In-hole receiving antenna and signal processing method of three-component time-domain electromagnetic method

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Embodiment

[0029] The receiving antenna in the hole of the three-component time-domain electromagnetic method provided by the present invention is composed of an induction coil and a skeleton, a magnetic core, a shell, a battery pack, a signal amplification circuit and a power supply circuit, such as image 3 shown. The induction coil frame is engraved with a ring-shaped groove, and is wound to receive the Z-component coil that receives the secondary field signal from the vertical direction. The hollow part of the frame is filled with ferrite core material, and the two ends of the frame are square frames, which are respectively wound and received in turn. The induction coil of the secondary field signal of the X and Y components, the cross-sectional view of the skeleton is as follows Figure 4 shown. In practical applications, the induction coil is made of enameled wire with a diameter of 0.5mm, and the skeleton structure of the entire induction coil is as follows: Figure 5 shown.

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Abstract

The invention relates to a receiving antenna and a signal processing method, belonging to the signal processing field, and specifically relates to an in-hole receiving antenna and signal processing method of a three-component time-domain electromagnetic method. The in-hole receiving antenna of the three-component time-domain electromagnetic method includes a skeleton and a frame, wherein a Z component coil which is used for receiving secondary field signals from the vertical direction is wound on the skeleton; and the frame is vertically arranged at two ends of the skeleton, and an X componentcoil or Y component coil for receiving secondary field signals from the horizontal direction is wound on the frame. The in-hole receiving antenna of the three-component time-domain electromagnetic method has the advantages that the structure is easy to feed into a drill hole for performing in-hole signal reception, thus being able to avoid external interference caused by underground electrical equipment, and at the same time the receiving antenna can receive transient field signals from three directions, thus being able to obtain more real three dimensional detection data, and preferably reflecting the three dimensional information of the detected object.

Description

technical field [0001] The invention relates to a receiving antenna and a signal processing method, belonging to the field of signal processing, in particular to a receiving antenna and a signal processing method in a three-component time domain electromagnetic method hole. Background technique [0002] The traditional vertical component time-domain electromagnetic receiving antenna winds the induction coil on the coil bobbin, and the ferrite core material is installed inside the coil bobbin, such as figure 1 As shown, the receiving antenna can only receive the secondary field signal in the vertical direction. [0003] The existing three-component receiving antennas on the market directly make a receiving antenna along the X, Y, and Z three-axis directions, such as figure 2 As shown, but this structure can only be applied to ground detection, and it is difficult to construct underground in coal mines, and it cannot be sent into the borehole for signal reception. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/10
Inventor 王继矿范涛赵兆赵睿李博凡刘磊李德山
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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