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Transient electromagnetic measurement device and method and transient electromagnetic measurement airplane

A technology of transient electromagnetics and measuring devices, applied in measuring devices, radio wave measuring systems, electric/magnetic exploration, etc., can solve the problems of low measurement accuracy and large influence

Pending Publication Date: 2020-12-25
GUANGDONG KENUO SURVEYING ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing transient electromagnetic measuring device is greatly affected by the primary field, and the measurement accuracy is low

Method used

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  • Transient electromagnetic measurement device and method and transient electromagnetic measurement airplane
  • Transient electromagnetic measurement device and method and transient electromagnetic measurement airplane
  • Transient electromagnetic measurement device and method and transient electromagnetic measurement airplane

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Embodiment Construction

[0037] In order to make the purpose, technical solution and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0038] Such as Figure 1-3 As shown, the embodiment of the present application provides a transient electromagnetic measurement device, including: a transmitting antenna TX and a receiving antenna RX;

[0039] The transmitting antenna Tx is a V-shaped plane with a first angle;

[0040] The receiving antenna RX is arranged on the bisector of the first included angle, and the receiving antenna RX is separated by the transmitting antenna TX into a first part Rx1 located above the transmitting antenna TX and a second part Rx1 located below the transmitting antenna TX Two parts Rx2;

[0041] When the transmitting antenna TX is powered on, the magnetic flux of the first part Rx1 of the receiving antenna and the magnetic flux of the second part ...

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Abstract

The invention relates to a transient electromagnetic measurement device and method and a transient electromagnetic measurement airplane. By using a V-shaped planar transmitting antenna with a first included angle, a primary field excited by the transmitting antenna is more beneficial to detection of an upright plate-shaped structure compared with a horizontal primary field excited by traditional transient electromagnetic measurement; moreover, a receiving antenna is arranged on an included angle bisector of the included angle of the transmitting antenna, and the transmitting antenna is used for dividing the receiving antenna into a first part located above the transmitting antenna and a second part located below the transmitting antenna; a magnetic flux of the first part of the receiving antenna and a magnetic flux of the second part of the receiving antenna are equal in size and opposite in direction, so that a total magnetic flux of a primary field of the receiving antenna is zero, mutual inductance between the transmitting antenna and the receiving antenna is effectively removed, and the influence of the primary field on receiving signals of the receiving antenna is eliminated;and the accuracy of a transient electromagnetic measurement result is improved.

Description

technical field [0001] The invention relates to the technical field of transient electromagnetic measurement, in particular to a transient electromagnetic measurement device and method and a transient electromagnetic measurement aircraft. Background technique [0002] Transient Electromagnetic Methods (TEM for short) belongs to a geophysical prospecting method. This method uses an ungrounded return line or a grounded line source to transmit a pulsed magnetic field underground. During the interval of a pulsed magnetic field, the coil Or the method of observing the secondary eddy current field with the ground electrode. It is mainly used in engineering geological exploration, metal mineral exploration, coal mine exploration and other fields. [0003] The existing transient electromagnetic measuring devices are greatly affected by the primary field and have low measurement accuracy. Contents of the invention [0004] Embodiments of the present application provide a transien...

Claims

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Application Information

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IPC IPC(8): G01V3/10
CPCG01V3/104
Inventor 汪华安李学山肖波刘志伟曾亮王占华练小聪
Owner GUANGDONG KENUO SURVEYING ENG CO LTD
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