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Magnetic focusing coil and its array setting method

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

Active Publication Date: 2017-07-21
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 coil and its array setting method
  • Magnetic focusing coil and its array setting method
  • Magnetic focusing coil and its array setting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] as attached figure 1 As shown, it is a launch array, the inner radius r1 of the main launch circle is 1cm, the outer radius is 20cm, the transverse thickness W of the winding wire is 1cm, and the vertical height H is 2cm; the inner radius r2 of the auxiliary launch circle is 2cm, and the outer radius is 3cm, the transverse thickness W of the winding is 1cm, and the longitudinal height H is 2cm;

[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. The total length of the coils is 918m, and the resistance value of both is 82.2 ohms.

Embodiment 2

[0037] as attached figure 1 As shown, it is a launch array, the inner radius r1 of the main launch circle is 1cm, the outer radius is 2cm, the transverse thickness W of the winding wire is 1cm, and the vertical height H is 2cm; the inner radius r2 of the auxiliary launch circle is 2cm, and the outer radius is 3cm, the transverse thickness W of the winding is 1cm, and the longitudinal height H is 2cm;

[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 of the coil wires is 918m, and the resistance value of both is 82.2 ohms.

[0039]The receiving coil 3 is nested outside the auxiliary transmitting circle. The inner radius of the receiving coil 3 is 3cm, and the outer radius is 4cm. 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 magnet...

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Abstract

The invention discloses a magnetic focusing coil and a method for setting the array, and belongs to the technical field of magnetic focusing. The invention provides a magnetic focusing coil with greatly improved focusing performance, simple and easy to manufacture, convenient and easy to measure, and no measurement blind area and an array setting method thereof. It is characterized by at least two coil groups distributed in the shape of concentric circles, which are nested together in turn. One end of the two coils is in the same plane, and the radii of the two coils are different. The radius of coil 1 is r1=1cm , the value range of the radius r2 of the coil 2 is in (1,2] cm, and the radius is increased by 0.1 cm unit, that is, the radius ratio between the coil 2 and the coil 1 is in the range of (1, 2]. The focus of the present invention Compared with a single coil or the 8-shaped coil and some coil arrays in the prior art, the focusing effect has been greatly improved; the scale of the present invention can be enlarged or reduced, and the application range is extremely wide; for example: large ones can be applied to oil exploration field, and small ones can be applied to the field of medical devices and so on.

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 circ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F5/00H01F41/066G01N27/82H01F41/071
Inventor 王观军陈健飞王安泉刘博杨勇孙东王春光江文军
Owner CHINA PETROLEUM & CHEM CORP
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