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Transient electromagnetic underground detecting instrument

A transient electromagnetic and detector technology, which is applied in the direction of electrical/magnetic detection for logging records, can solve the problems of long coil length, short detection distance, inconvenient carrying and operation, and achieves reduction of damage and scientific decision-making. Accurate and improve work efficiency

Inactive Publication Date: 2013-05-08
武汉地大华睿地学技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] (2) Short detection distance: the detection distance of underground geological structures depends on the size of the transmission power and the length of the transmission coil
For existing products in the form of small current and small coils, the detection distance is short
[0017] (3) For products using small current and large coils, the length of the coil is lengthened, which makes it inconvenient to carry and operate

Method used

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  • Transient electromagnetic underground detecting instrument

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Embodiment Construction

[0033] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0034] Such as figure 1 As shown, a transient electromagnetic downhole detector includes a host 1, a transmitter 4, a power supply 5, a transmitting coil 2, and a receiving coil 3. The host 1 is connected to the transmitter 4 through a host connection line, and the transmitting coil 2 Connect to the transmitter 4 through the transmitting coil connection line, the receiving coil 3 is connected to the host 1 through the receiving coil connection line, the power supply 5 is located in the transmitter 4, and the transmitter 4 is provided with a power regulating board and a rectifying board , Launching board, the power regulating board, the rectifying board, and the launching board in the transmitter are an integral stru...

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Abstract

The invention relates to a transient electromagnetic underground detecting instrument which comprises a main engine, a transmitter, a power supply, a transmitting coil and a receiving coil. The main engine sends operational orders to the transmitter through a main engine connecting line. A power supply adjusting plate, a current plate and a transmitting plate are arranged in the transmitter. The power supply is a large current power supply, and total voltage provided by the large current power supply is 24 volt(V)-36V. Length of the transmitting coil is 6m-10m, and transmitted power is improved. The power supply adjusting plate, the current plate and the transmitting plate arranged in the transmitter are integrated to form an integrated transmitting plate, and a size of the transmitter is reduced. The transmitter is provided with an explosive-proof cavity and a connecting line cavity, the power supply and the integrated transmitting plate are arranged in the explosive-proof cavity, and explosive atmospheres in an outside world and a launcher with large current are isolated to guarantee using safety. The explosive-proof cavity is composed of an explosive-proof shell body, materials of the explosive-proof shell body are acrylonitrile butadiene styrene (ABS) engineering plastics which accord with coin mine safety requirements, weight of the transmitter is reduced, and exploration efficiency is improved largely.

Description

technical field [0001] The invention relates to geological exploration equipment, in particular to a transient electromagnetic downhole detector. Background technique [0002] The transient electromagnetic method belongs to a geophysical prospecting method. This method is to use an ungrounded transmitting coil or a grounded wire source to transmit a pulsed magnetic field underground. The method of the sub-eddy current field is mainly used in engineering exploration, metal mines and non-metal mines and other fields. [0003] 1. The existing technical situation at home and abroad: the method of using small current and large coil [0004] 2. The state of prior art products of similar products and their structural composition: [0005] (1) The status of similar products in the prior art: domestic and foreign products basically adopt two solutions: one is small current and small coil, and the other is small current and large coil. [0006] (2) The structure of similar products...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/28
Inventor 梁庆九
Owner 武汉地大华睿地学技术有限公司
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