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Magnetic focusing coils and setting method of array of magnetic focusing coils

A coil array, magnetic focusing technology, applied in the field of magnetic focusing

Active Publication Date: 2015-06-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The focus performance of this model has been greatly improved, the structure is simple and easy to manufacture, and the measurement is convenient and easy, and there is no measurement problem of blind spots

Method used

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  • Magnetic focusing coils and setting method of array of magnetic focusing coils
  • Magnetic focusing coils and setting method of array of magnetic focusing coils
  • Magnetic focusing coils and setting method of array of magnetic focusing coils

Examples

Experimental program
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Effect test

Embodiment 1

[0034] as attached figure 1 As shown, it is a transmitting array, the inner radius r1 of the coil 1 is 10cm, the outer radius is 20cm, the transverse thickness W of the winding wire is 1cm, and the longitudinal height H is 2cm; the inner radius r2 of the coil 2 is 20cm, and the outer radius is 30cm, The transverse thickness W of the winding wire is 1 cm, and the longitudinal height H is 2 cm;

[0035] Both are wound with enameled wire with a wire diameter of 0.51mm. The inner circle is wound with 769 turns and the outer circle is wound with 504 turns.

Embodiment 2

[0037] as attached figure 1 As shown, it is a transmitting array, the inner radius r1 of the coil 1 is 10cm, the outer radius is 20cm, the transverse thickness W of the winding wire is 1cm, and the longitudinal height H is 2cm; the inner radius r2 of the coil 2 is 20cm, and the outer radius is 30cm, The transverse thickness W of the winding wire is 1 cm, and the longitudinal height H is 2 cm;

[0038] Both are wound with enameled wire with a wire diameter of 0.51mm. The inner circle is wound with 769 turns and the outer circle is wound with 504 turns. The total length L of the coil wires is 918m.

[0039] Outside the coil 2, a receiving coil 3 is nested. The inner radius of the receiving coil 3 is 30cm, and the outer radius is 40cm. The horizontal thickness W of the winding wire is 1cm, and the vertical height H is 2cm.

[0040] To sum up: if the size of the coil is reduced proportionally and the magnetic field distribution remains unchanged, the design can be miniaturized. It...

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Abstract

The invention discloses magnetic focusing coils and a setting method of an array of the magnetic focusing coils, belongs to the technical field of magnetic focusing, and provides the magnetic focusing coils which have greatly improved focusing performance, are simple in structure, easy to manufacture and simple, convenient and easy to measure and are free of measuring blind zones as well as the setting method of the array of the magnetic focusing coil. The setting method is characterized in that at least two coil assemblies distributed in a concentric circle shape are sequentially nested together, the end part of one side of a first coil and the end part of one side of a second coil are located in the same plane, radii of the two coils are different, the radius r 1 of the first coil is 1 cm, the radius r2 of the second coil is in a value range of (1,2] cm and is increased by 0.1 cm as a unit, that is, the radius ratio of the second coil to the first coil is in a range of (1,2]. Compared with a single coil or a 8-shaped coil and a few coil arrays in the prior art, the focusing performance of the magnetic focusing coils is greatly improved; the magnetic focusing coils can be expanded or contracted proportionally, and the application range is very wide; for instance, the large magnetic focusing coils can be applied to the field of petroleum survey, and small magnetic focusing coils can be applied to the field of medical instruments and the like.

Description

technical field [0001] The invention discloses a magnetic focusing coil and a method for setting the array, and belongs to the technical field of magnetic focusing. Background technique [0002] With the widespread use of magnetic focusing technology in fields such as medicine and petroleum exploration, in order to achieve magnetic focusing, various coil array structures designed to achieve focusing have been continuously proposed. From the original 8-shaped coil to the three-dimensional space coil array structure, they are all designed for the problem of how to improve the focus of the coil array. [0003] The electromagnetic field focusing performance achieved by a simple single coil (circular coil, rectangular wire frame, etc.) is not good, the focusing area is too large, the energy of the magnetic field is scattered, and it cannot meet the needs of depth measurement. [0004] The 8-shaped coil is to place two circular coils side by side, and the currents in the two ci...

Claims

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Application Information

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IPC IPC(8): H01F5/00H01F41/06G01N27/82H01F41/066H01F41/071
Inventor 王观军陈健飞王安泉冯国栋杨勇孙东王春光江文军
Owner CHINA PETROLEUM & CHEM CORP
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