CN101763931A - 10-9 to 10-1T magnetic field generator - Google Patents
10-9 to 10-1T magnetic field generator Download PDFInfo
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- CN101763931A CN101763931A CN200810187848A CN200810187848A CN101763931A CN 101763931 A CN101763931 A CN 101763931A CN 200810187848 A CN200810187848 A CN 200810187848A CN 200810187848 A CN200810187848 A CN 200810187848A CN 101763931 A CN101763931 A CN 101763931A
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- magnetic field
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Abstract
The invention relates to a magnetic field generator with the measuring range of 10-9 to 10-1T, belonging to the field of electromagnetic equipment. The magnetic field generator comprises five pairs of circular coil windings which have different diameters and winding numbers and are arranged together; each coil winding has a same line diameter; paired coaxial devices consist of the coil windings; a smallest pair of the coil windings are innermost, and other coil windings are gradually enlarged in diameters from inside to outside; and integral coils are in a symmetrical, isometric and flat-end conical shape. The invention can achieve the large range of 10-9 to 10-1T of magnetic field strength generated by the magnetic field generator, and provides the three-dimensional using space with uniform magnetic field heights.
Description
Technical field
Patent of the present invention belongs to electromagnetism equipment field, particularly a kind of wide-range magnetic field space coil device that is used for the space physics technology.
Background technology
Relate to the range ability of magnetic field space metering device, general or with regard to regard to the low-intensity magnetic field or with regard to high-intensity magnetic field, not seeing has the low-intensity magnetic field span to be embodied on the same device so big product device of range ability to such one of high-intensity magnetic field.Magnetic field generator of the present invention then is to finish this span, and promptly the magnetic field intensity that is produced is from 10
-9T can be transferred to 10 continuously
-1T.
In the prior art, design theoretically, the solenoid pattern is like the performance that can realize magnetic field generator of the present invention.But there are 3 shortcoming that are difficult to remedy in solenoid, the one, and resolution is not high, is difficult for differentiating for＜the magnetic field of 1mT; The 2nd, it is implemented to cool off comparatively complexity and additional source of energy loss; The 3rd, the usage space that it provides can only be axial pipeline, and obviously this is all totally unfavorable for other experimental facilities of configuration and operation.
In recent years, space flight, boats and ships, electronics, ground is learned, fields such as life science in the development project of sustainable development more and more demand can produce the magnetic field generator of great scope magnetic field intensity, especially the deep discussion of biomagnetics, under wide in range magnetic field condition, test in length and breadth and may obtain breakthrough discovery, the searching of " magnetotactic bacteria " and enrichment, the magnetization of agricultural breeding and level of intensity, these discussions of not making widely known energetically as yet are but at the magnetic field generator of preparing and expect wide-range energetically, simultaneously also be in the scientific experiment stage just because of these researchs, so more pay close attention to the saving of fund input, the present invention has taken into full account unification scientific and economy, propose a kind of combination field coil modes, the absolute predominance of product price ratio has been established in its design.
Summary of the invention
The technical issues that need to address of the present invention are: how to set up a kind of wide-range, the scope that promptly produces magnetic field value to high-intensity magnetic field, quantitatively is 10 from the low-intensity magnetic field span
-9～10
-1T.Solve simultaneously: provide three-dimensional usage space, with the configuration of appropriate experimental operation and miscellaneous equipment; The branch of design heat radiation is dredged structure, to reach 10
-1But the continuous operation long period during T magnitude.Not wide in order to overcome in the prior art range, many weak points such as the additional source of energy loss is big, and usage space is restricted will propose a kind of new design again, the object of the present invention is to provide a kind of wide-range magnetic field space coil device, to satisfy the needs of this area.In order to realize this goal, technical scheme below special the employing is finished, it is the classical mode of integrated Helmholtz coil, decompose total umber of turn, be combined into some that diameter does not wait to coil, spacing equals radius to satisfy in theory, and the condition that winding cross section depth-width ratio equals 0.928 has been taken into account the function of being convenient to ventilation and heat simultaneously.Constitute the different circular coil winding of five pairs of devices diameter difference, number of turn together thus, each coil windings line footpath is identical, it is characterized in that: described each coil windings forms by right coaxial device, minimum a pair of coil windings is placed in the middle, other each the coil windings diameter is increased from inside to outside gradually, whole coil constitutes the shape of symmetry, equidistant, tack centrum.
Each is to the coil windings left-right symmetric, and external diameter in the two, umber of turn, input current value are all identical.
Be connected in series between described each left and right sides winding to coil windings and the input of independent guiding power supply, every pair of coil windings input current value is up to 10A.
Five pairs of coils are followed the right-hand rule, and the input current orientation is consistent, and coil produces the magnetic direction unanimity, and magnetic field intensity stack maximum is 10-1T (100mT).Respectively increase an auxiliary winding on a pair of coil of outermost in these five pairs of coils, this auxiliary winding has only some circles to form with radial line.
This coil combination pattern that the present invention sets up can satisfy Helmholtz's condition of every pair of coil, can make again original need to connect around several thousand circles could huge winding up to standard divide and rule, layering dislocation, branch discrete heat.
The invention has the beneficial effects as follows that solved the wide-range in magnetic field, from the low-intensity magnetic field to the high-intensity magnetic field, scope reaches 10-9～10-1T, and highly uniform three-dimensional usage space is provided, its space is a spheric region.
Description of drawings
Fig. 1 is the general illustration of wide-range magnetic field space coil device;
Fig. 2 is a location diagram between the every pair of coil windings in the said apparatus.
The spacing L1 of 1. the 1st pairs of coils among the figure, 2. the spacing L2 of the 2nd pair of coil, 3. the spacing L3 of the 3rd pair of coil, 4. the spacing L4 of the 4th pair of coil, 5. the spacing L5 of the 5th pair of coil, 6. the radius a1 of the 1st pair of coil, 7. the radius a2 of the 2nd pair of coil, 8. the radius a3 of the 3rd pair of coil, 9. the radius a4 of the 4th pair of coil, the 10. radius a5 of the 5th pair of coil, the thickness d 1 of 11. the 1st pairs of circular coils, 12. the thickness d 2 of the 2nd pair of circular coil, 13. the thickness d 5 of the 5th pair of circular coil of thickness d 4,15. of the 4th pair of circular coil of thickness d 3,14. of the 3rd pair of circular coil, 16. backup terminal, 17. the 1st pair of coil power input terminal, 18. the 2nd pairs of coil power input terminals, 19. the 3rd pairs of coil power input terminals, 20. the 4th pair of coil power input terminal, 21. the 5th pairs of coil power input terminals.
Embodiment
With reference to Fig. 1, Fig. 2, expression 10
-9～10
-1The general illustration of T magnetic field generator, and position relation between coil windings are at the 1st, the 2 described in Fig. 1, Fig. 2, the the 3rd, the 4, the 5th pair of pairing radius of coil is respectively a1, a2, a3, a4, a5, pairing spacing is respectively L1, L2, L3, L4, L5, the thickness of pairing circular coil is respectively d1, d2, d3, d4, d5, their physical dimension relation is:
d1＝d2＝d3＝d4＝d5＝d；
L1＝a1
L2＝L1+2d＝a2
L3＝L2+2d＝a3
L4＝L3+2d＝a4
L5＝L4+2d＝a5
The N1 that can't indicate one by one on the figure, N2, N3, N4, N5 then are umber of turns one to one; Their number of turn is unequal, and the ratio that they respectively account for total number of turns can click four cardinal principles allotment: (1) N1＞N2＞N3＞N4＞N5; (2) the depth-width ratio value that satisfies the winding cross section equals 0.928; (3) be integer and be the even-multiple of the winding width number of turn; (4) each that calculate each number of turn and constituted, is superimposed as total magnetic field intensity and whether meets design objective respectively during load 10A electric current coil.1st, 2,3,4,5 pairs of coils, each is to being connected in series between the coil, and 17,18,19,20,21 power input terminals are inserted at two ends respectively, and leave a stand-by power supply terminal 16.
Claims (5)
1. one kind 10
-9～10
-1The T magnetic field generator, comprise the different circular coil winding of five pairs of devices diameter difference, number of turn together, each coil windings line footpath is identical, it is characterized in that: the paired coaxial device of described each coil windings, in minimum a pair of coil windings occupies, other each the coil windings diameter is increased from inside to outside gradually, whole coil constitutes the shape of symmetry, equidistant, tack centrum.
2. magnetic field generator according to claim 1 is characterized in that: each is to the coil windings left-right symmetric, and its spacing equals radius, and external diameter in the two, umber of turn, input current value are identical.
3. magnetic field generator according to claim 1 is characterized in that: be connected in series between described each left and right sides winding to coil windings and the input of independent guiding power supply, every pair of coil windings input current value is up to 10A.
4. magnetic field generator according to claim 1 is characterized in that: a pair of coil of outermost respectively increases an auxiliary winding in five pairs of coils.
5. magnetic field generator according to claim 1 is characterized in that: each depth-width ratio value to the coil windings sectional area is 0.928.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810187848A CN101763931A (en) | 2008-12-24 | 2008-12-24 | 10-9 to 10-1T magnetic field generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810187848A CN101763931A (en) | 2008-12-24 | 2008-12-24 | 10-9 to 10-1T magnetic field generator |
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| Publication Number | Publication Date |
|---|---|
| CN101763931A true CN101763931A (en) | 2010-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810187848A Pending CN101763931A (en) | 2008-12-24 | 2008-12-24 | 10-9 to 10-1T magnetic field generator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928212A (en) * | 2014-03-13 | 2014-07-16 | 中国计量科学研究院 | Gradient field solenoid used for open-circuit measuring of temperature coefficient of permanent magnet |
| CN105632680A (en) * | 2016-03-28 | 2016-06-01 | 中国船舶重工集团公司第七一〇研究所 | Implementation method of combined magnetic field coil |
| CN106772159A (en) * | 2017-01-04 | 2017-05-31 | 钢铁研究总院 | A kind of Helmholtz coil frame |
| CN110690024A (en) * | 2019-10-12 | 2020-01-14 | 燕山大学 | Magnetic field generating device and manufacturing method thereof |
| CN113936881A (en) * | 2021-10-11 | 2022-01-14 | 阜阳师范大学 | Magnetic field control system for micro-structure and multiferroic sequence parameter information |
-
2008
- 2008-12-24 CN CN200810187848A patent/CN101763931A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928212A (en) * | 2014-03-13 | 2014-07-16 | 中国计量科学研究院 | Gradient field solenoid used for open-circuit measuring of temperature coefficient of permanent magnet |
| CN103928212B (en) * | 2014-03-13 | 2016-06-22 | 中国计量科学研究院 | A kind of gradient fields solenoid measured for permanent magnet temperature coefficient open circuit |
| CN105632680A (en) * | 2016-03-28 | 2016-06-01 | 中国船舶重工集团公司第七一〇研究所 | Implementation method of combined magnetic field coil |
| CN105632680B (en) * | 2016-03-28 | 2017-11-21 | 中国船舶重工集团公司第七一〇研究所 | A kind of implementation method of magnetic coil system |
| CN106772159A (en) * | 2017-01-04 | 2017-05-31 | 钢铁研究总院 | A kind of Helmholtz coil frame |
| CN110690024A (en) * | 2019-10-12 | 2020-01-14 | 燕山大学 | Magnetic field generating device and manufacturing method thereof |
| CN110690024B (en) * | 2019-10-12 | 2020-10-02 | 燕山大学 | Magnetic field generating device and manufacturing method thereof |
| CN113936881A (en) * | 2021-10-11 | 2022-01-14 | 阜阳师范大学 | Magnetic field control system for micro-structure and multiferroic sequence parameter information |
| CN113936881B (en) * | 2021-10-11 | 2024-03-01 | 阜阳师范大学 | Magnetic field control system for microstructure and multiferroic order parameter information |
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Open date: 20100630 |