Transient electromagnetic response signal horizontal component measuring method and observation device thereof

A technology that responds to signals and horizontal components. It is used in measurement devices, radio wave measurement systems, and electromagnetic/magnetic exploration. It can solve problems such as the mutual inductance effect of transceiver coils, and achieve outstanding performance, ensure resolution, and improve performance.

Inactive Publication Date: 2012-12-26
朱德兵
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this multi-component measurement mode is also affected by the mutual inductance of the transceiver coil

Method used

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  • Transient electromagnetic response signal horizontal component measuring method and observation device thereof
  • Transient electromagnetic response signal horizontal component measuring method and observation device thereof
  • Transient electromagnetic response signal horizontal component measuring method and observation device thereof

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] see figure 1 , the transmitting coil 4 is wound into a symmetrical shape about the A-A' axis and up and down about the BB' axis, and the A-A' axis and the BB' axis are perpendicular to each other; perpendicular to the A-A' axis and passing through The plane of the BB' axis constitutes a reference plane 1, which is perpendicular to the reference plane 1 and parallel to the AA' axis to form a receiving coil winding cylinder 6, and the receiving coil winding cylinder 6 is a cylindrical surface for the receiving coil The winding cylinder 6 is used as a reference to continuously wind the receiving coil 2 in the same direction on both sides of the reference plane 1 to ensure that the wound receiving coil 2 is completely identical on both sides of the reference plane 1; the receiving coil 2 is installed on the receiving coil bobbin 8, and the ...

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Abstract

The invention discloses a transient electromagnetic response signal horizontal component measuring method and an observation device thereof. A transmitting coil (4) is designed to be provided with two mutually perpendicular symmetry axes. A plane is perpendicular to one symmetry axis and passes through the other symmetry axis to form a reference plane (1). The vertical reference plane (1) is parallel to the first symmetry axis to form a receiving coil winding cylindrical surface (6). A receiving coil (2) is continuously wounded on two sides of the reference plane (1) towards the same direction with the receiving coil winding cylindrical surface (6) as a datum. Finally, signals of the transmitting coil (4) and the receiving coil (2) can be measured and calculated. Through adoption of symmetry of primary-field horizontal component signals of the symmetrical transmitting coil, primary-field induction signals in the receiving coil are mutually canceled so that secondary-field horizontal component signals can be reserved and signal to noise ratio (SNR) of secondary response signal measurement of transient electromagnetism can be guaranteed. Consequently, resolution capability of an exploration system is improved. The transient electromagnetic response signal horizontal component measuring method and the observation device thereof can be applied to the transient electromagnetic exploration field such as in the aviation field, in the ocean field, on the ground and in wells and roadways.

Description

technical field [0001] The invention relates to a method for measuring the horizontal component of a transient electromagnetic response signal and an observation device thereof. It is suitable for use in transient electromagnetic exploration fields such as aviation, ocean, ground, well and roadway. technical background [0002] Transient electromagnetic method is a commonly used geophysical prospecting method. Because it adopts ungrounded loops and is not sensitive to the influence of high resistance characteristics of the working surface, it has been widely recognized by engineering circles and mineral resource exploration fields. However, if the receiving coil of the transient electromagnetic is close to the transmitting coil, the mutual inductance between the two is very strong, and the secondary response signal of the transient electromagnetic in the early period is completely submerged in the primary field mutual inductance signal, and the effective signal is difficult ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/10
Inventor 朱德兵
Owner 朱德兵
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