CN103943304A - Magnetic flux density continuously adjustable even axial magnetic field producing device and method for producing continuously adjustable even axial magnetic field of device - Google Patents
Magnetic flux density continuously adjustable even axial magnetic field producing device and method for producing continuously adjustable even axial magnetic field of device Download PDFInfo
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Abstract
The invention provides a magnetic flux density continuously adjustable even axial magnetic field producing device and a method for producing a continuously adjustable even axial magnetic field of the device and relates to the technical field of establishment of special configuration magnetic fields. The problem that an existing magnetic flux density axial magnetic field producing device is complicated in structure and magnetic fields produced by adopting the existing magnetic flux density axial magnetic field producing device and a method are unstable and non-adjustable is solved. An inner coil of the device is wound on a cylindrical iron core, two round inner magnetic poles are respectively fixed at two ends of the cylindrical iron core, two circular ring outer magnetic poles are respectively fixed at two ends of a cylindrical casing, an outer coil is fixed on the inner side of the cylindrical casing and wound and arranged in a circular-ring-shaped mode, the cylindrical casing coaxially sleeves the cylindrical iron core, two circular ring outer magnetic poles and two round inner magnetic poles are located on the same plane and are not connected. A power supply provides current for an outer coil and the inner coil simultaneously. The magnetic flux density continuously adjustable even axial magnetic field producing device is suitable for production of continuously adjustable even axial magnetic fields.
Description
Technical field
The present invention relates to build the technical field in special configuration magnetic field.
Background technology
Magnetic field is that the magnet to putting into wherein has magneto motive a kind of particular matter, its essential characteristic is to apply active force to moving charge, it is the active force that electrical conductor or moving charged particle are subject to magnetic field in magnetic field, wherein the suffered active force of charged particle is called as Lorentz force, and size and Orientation is by formula
for the suffered Lorentz force of charged particle, q is the electric weight of band point particle, and v is the speed of band point particle,
for magnetic flux density determines.Particularly point out, the multi-particles System that plasma is comprised of the charged particle that is in non-bound state, electromagnetic action is the decisive action factor of domination system motion, and the electromagnetic field that therefore builds certain bits shape is the main method of controlling plasma charging particle movement state.In cylindrical-coordinate system, axial magnetic field is radially to moving in the circumferential direction the Lorentz force of charged particle, and charged particle obtains radial centripetal power under the effect of axial magnetic field, circles.This effect is applied at a lot of engineering fields, such as plasma mass separator, therefore designs a kind of device of adjustable even axial magnetic field that can produce continuously and has great using value.Yet construct, to meet the axial magnetic field difficulty of engine request very large, this be because:
1, in order to control flexibly effectively the motion state of charged particle, service area axial magnetic field magnetic flux density need to be adjustable continuously in the scope of 0 Gauss～2000 Gauss 0.2T, and axial magnetic field is only present in service area, decline rapidly region outside;
2,, in order to make charged particle obtain more uniformly angle speed, service area axial magnetic field magnetic flux density non-uniformity must be limited in the scope of design permission;
3, in order not affect the circular motion of charged particle, the acceleration of other directions will be much smaller than radial acceleration, and in service area, radially and circumferentially magnetic flux density component will be much smaller than axial component.
Summary of the invention
The present invention for the magnetic field that solves existing magnetic flux density axial magnetic field generation device complex structure and existing magnetic flux density axial magnetic field generation device and method and produce unstable, nonadjustable problem, generation device and this device of adjustable even axial magnetic field produce adjustable even axial magnetic field method continuously continuously to have proposed a kind of magnetic flux density.
Magnetic flux density of the present invention is the generation device of adjustable even axial magnetic field continuously, and this device comprises two circular Inner magnetic poles, cylinder iron core, two circular rings outer magnetic poles, cylindrical housing, exterior loop, interior loop and power supplys;
Interior loop is looped around on cylinder iron core, two circular Inner magnetic poles are separately fixed at the two ends of cylinder iron core, two circular rings outer magnetic poles are separately fixed at the two ends of cylindrical housing, exterior loop is fixed on the inner side of cylindrical housing, and exterior loop becomes annular to be wound around arrangement, cylindrical housing coaxial sleeve is in the outside of cylinder iron core, and two circular rings outer magnetic poles are positioned at same plane with two circular Inner magnetic poles respectively, and two circular rings outer magnetic poles are not connected with two circular Inner magnetic poles; Between interior loop and exterior loop, be service area, power supply is simultaneously for exterior loop and interior loop provide electric current.
The magnetic flux density continuously generation device of adjustable even axial magnetic field produces the method for adjustable even axial magnetic field continuously: the method is:
Switch on power, power supply provides electric current for interior loop and exterior loop, make interior loop and exterior loop produce equidirectional magnetic field, the size of the electric current that change power supply provides, the axial magnetic field density that interior loop and exterior loop are produced changes in 0 Gauss～2000 Gauss's scope in service area, make the magnetic flux density non-uniformity of the axial magnetic field that interior loop and exterior loop produce in 10%, realize the magnetic flux density generation of adjustable even axial magnetic field continuously.
It is that interior loop galvanization inspires magnetic field that the present invention adopts power supply, magnetic flux density is cut down law by Biot-Sha and is determined, by power supply, to inner-outer coil, charge, by changing the charging direction to inner-outer coil, make the magnetic direction of inner-outer coil identical, the magnetic field that inner-outer coil excites is not subject to the impact of temperature, controllability is strong, and the present invention is simple in structure, compare with the generation device of existing axial magnetic field, structural complexity has reduced by 20% on year-on-year basis, by controlling power supply, can produce stable electric current simultaneously, and can regulate magnetic field by changing electric current, make the stable magnetic field of generation strong, and can be by regulating electric current to regulate magnetic field, compare stability with the generation device of existing axial magnetic field and improved 10%.
Accompanying drawing explanation
Fig. 1 is apparatus structure schematic diagram of the present invention;
Fig. 2 is the end view of device of the present invention;
Fig. 3 be service area radially, angle and axial magnetic flux density longitudinal shape curve, in figure, three curves are followed successively by radial component curve, azimuth component curve and the axial component curve of magnetic flux density from top to bottom.
Embodiment
Embodiment one, in conjunction with Fig. 1, Fig. 2, present embodiment is described, the continuous generation device of adjustable even axial magnetic field of magnetic flux density described in present embodiment, this device comprises two circular Inner magnetic poles 1, cylinder iron core 2, two circular rings outer magnetic poles 3, cylindrical housing 4, exterior loop 6, interior loop 7 and power supplys;
Interior loop 7 is looped around on cylinder iron core 2, two circular Inner magnetic poles 1 are separately fixed at the two ends of cylinder iron core 2, two circular rings outer magnetic poles 3 are separately fixed at the two ends of cylindrical housing 4, exterior loop 6 is fixed on the inner side of cylindrical housing 4, and 6 one-tenth annulars of exterior loop are wound around to be arranged, cylindrical housing 4 coaxial sleeves are in the outside of cylinder iron core 2, and two circular rings outer magnetic poles 3 are positioned at same plane with two circular Inner magnetic poles 1 respectively, and two circular rings outer magnetic poles 3 are not connected with two circular Inner magnetic poles 1; Between interior loop 7 and exterior loop 6, be service area 5, power supply is simultaneously for exterior loop 6 and interior loop 7 provide electric current.
The object of the invention is to design the device that can produce satisfactory special magnetic field configuration.The method that produces magnetic field is utilized permanent magnet or magnet exciting coil.The advantage of permanent magnet is that magnetic field is more stable, be not easy to produce fluctuation, yet plasma temperature is very high, when permanent magnet can loss of excitation when surpassing Curie temperature by plasma heating, thereby has influence on the movement locus of charged particle, causes controlling inefficacy.Magnet exciting coil is electrified stream can inspire magnetic field, and magnetic flux density is cut down law by Biot-Sha and determined.
Apparatus of the present invention are comprised of service area, iron core and interior loop.The magnetic field that can realize in service area by the size and Orientation of change interior loop electric current is adjustable continuously on a large scale, has met the mission requirements of controlling different quality charged particle.Simple in structure, easy processing that apparatus of the present invention have advantages of, life-span are long, and the succeeding in developing of various engineering equipment such as plasma mass-separator have great importance.
Embodiment two, present embodiment are further illustrating the generation device of the continuous adjustable even axial magnetic field of the magnetic flux density described in embodiment one, it is the enamel insulated round copper wire of 1mm that interior loop 7 and exterior loop 6 all adopt bare wire diameter, wound convolution numerical digit 54000 circles, coil section amasss as 100cm * 5.4cm.
Embodiment three, present embodiment are that the radius of circular Inner magnetic pole 1 is 11cm to continuous the further illustrating of generation device of adjustable even axial magnetic field of the magnetic flux density described in embodiment one, and axial width is 3cm.
Embodiment four, present embodiment are that the inside radius of circular rings outer magnetic pole 3 is 12cm to continuous the further illustrating of generation device of adjustable even axial magnetic field of the magnetic flux density described in embodiment one, and outer radius is 24cm, and axial width is 19cm.
Embodiment five, present embodiment are that the radius of cylinder iron core 2 is 3cm to continuous the further illustrating of generation device of adjustable even axial magnetic field of the magnetic flux density described in embodiment one, and axial length is 100cm.
Embodiment six, present embodiment are that the inside radius of cylindrical housing 4 is 19cm to continuous the further illustrating of generation device of adjustable even axial magnetic field of the magnetic flux density described in embodiment one, outer radius 20cm, and axial length is 100cm.
Embodiment seven, present embodiment are that the material of cylindrical housing 4 is soft iron material DT3 to continuous the further illustrating of generation device of adjustable even axial magnetic field of the magnetic flux density described in embodiment one.
Embodiment eight, present embodiment are that the material of intermediate cylindrical iron core 1 is high saturation magnetic flux density magnetically soft alloy 1J22 to continuous the further illustrating of generation device of adjustable even axial magnetic field of the magnetic flux density described in embodiment one.
Embodiment nine, present embodiment are that the generation device of the continuous adjustable even axial magnetic field of magnetic flux density described in embodiment one produces adjustable even axial magnetic field method continuously: the method is:
Switch on power, power supply provides electric current for interior loop 7 and exterior loop 6, make interior loop 7 and exterior loop 6 produce equidirectional magnetic field, the size of the electric current that change power supply provides, the axial magnetic field density that interior loop 7 and exterior loop 6 are produced changes in 0 Gauss～2000 Gauss's scope in service area, make the magnetic flux density non-uniformity of the axial magnetic field that interior loop 7 and exterior loop 6 produce in 10%, realize the magnetic flux density generation of adjustable even axial magnetic field continuously.
Design concept:
Because core material magnetic permeability is much larger than vacuum, by the refraction theorem tan α in magnetic field
1tan α
2=μ
1μ
2can know, the magnetic flux density line that magnet exciting coil produces in iron core can be thought parallel with iron core surface, drains to outside seldom, and iron core is the main thoroughfare of magnetic flux density line, and this passage is called as magnetic circuit.In the magnetic circuit system of apparatus of the present invention, the sectional area of centered cylinder iron core is minimum, maximum by known its magnetic flux density of Ohm's law of closed magnetic circuit, so the magnetic flux that can pass through when centered cylinder iron core reaches magnetic saturation has determined the peakflux density of air gap.High saturation magnetic flux density magnetically soft alloy 1J22 relative permeability when magnetic flux density is 20000 Gauss is 900, still there is very intense beam magnetic energy power, by core structure size, can be calculated, now service area magnetic flux density is 2500 Gausses, 2000 Gausses that meet design requirement.What magnet exciting coil was selected is that bare wire diameter is the enamel insulated round copper wire of 1mm, and when 54000 circle, coil section amasss as 100cm * 5.4cm.During coil current 3.3A, service area magnetic flux density is greater than 2000 Gausses, by regulating the large I of electric current to make air gap flux density adjustable continuously in 0 Gauss～2000 Gauss's (0.2T) scope.When magnetic flux density line enters vacuum in service area by iron core, by the boundary condition B in magnetic field on two kinds of medium interfaces
1n=B
2ncan know, at the interface place of different mediums, the normal component of magnetic flux density vector is continuous, and the magnetic flux density in service area is mainly axial, radially very little with circumferential component.Through ansys, emulation can obtain Fig. 3.In service area of the present invention, the magnetic flux density of abscissa 0.06cm-1.06cm is greater than 2000 Gausses as seen from Figure 3, and outside service area, magnetic flux density reduces rapidly, and the axial flux density uniformity in service area is fine, and radially and circumferentially magnetic flux density is very little.So the magnetic field configuration that apparatus of the present invention produce meets design requirement.
Thereby power-supply system offers interior loop electric current and generates magnetic flux, the magnetic field that can realize in service area by the size and Orientation of change interior loop electric current is adjustable continuously on a large scale; Axial flux density in magnetic field generation device service area is adjustable continuously in 0 Gauss～2000 Gauss's (0.2T) scope, and outside service area, the magnetic flux density of 3cm reduces rapidly to obtain in 30% in service area;
Axial flux density non-uniformity in magnetic field generation device of the present invention service area is in 10%, and axial and circumferential magnetic flux density is less than 5% of axial component.
Claims (9)
1. the continuous generation device of adjustable even axial magnetic field of magnetic flux density, it is characterized in that, this device comprises two circular Inner magnetic poles (1), cylinder iron core (2), two circular rings outer magnetic poles (3), cylindrical housing (4), exterior loop (6), interior loop (7) and power supply;
Interior loop (7) is looped around on cylinder iron core (2), two circular Inner magnetic poles (1) are separately fixed at the two ends of cylinder iron core (2), two circular rings outer magnetic poles (3) are separately fixed at the two ends of cylindrical housing (4), exterior loop (6) is fixed on the inner side of cylindrical housing (4), and exterior loop (6) becomes annular to be wound around arrangement, cylindrical housing (4) coaxial sleeve is in the outside of cylinder iron core (2), two circular rings outer magnetic poles (3) are positioned at same plane with two circular Inner magnetic poles (1) respectively, and two circular rings outer magnetic poles (3) are not connected with two circular Inner magnetic poles (1), between interior loop (7) and exterior loop (6), be service area (5), power supply is simultaneously for exterior loop (6) and interior loop (7) provide electric current.
2. the continuous generation device of adjustable even axial magnetic field of magnetic flux density according to claim 1, it is characterized in that, it is the enamel insulated round copper wire of 1mm that interior loop (7) and exterior loop (6) all adopt bare wire diameter, wound convolution numerical digit 54000 circles, and coil section amasss as 100cm * 5.4cm.
3. the generation device of the continuous adjustable even axial magnetic field of magnetic flux density according to claim 1, is characterized in that, the radius of circular Inner magnetic pole (1) is 11cm, and axial width is 3cm.
4. the generation device of the continuous adjustable even axial magnetic field of magnetic flux density according to claim 1, is characterized in that, the inside radius of circular rings outer magnetic pole (3) is 12cm, and outer radius is 24cm, and axial width is 19cm.
5. the generation device of the continuous adjustable even axial magnetic field of magnetic flux density according to claim 1, is characterized in that, the radius of cylinder iron core (2) is 3cm, and axial length is 100cm.
6. the generation device of the continuous adjustable even axial magnetic field of magnetic flux density according to claim 1, is characterized in that, the inside radius of cylindrical housing (4) is 19cm, outer radius 20cm, and axial length is 100cm.
7. the generation device of the continuous adjustable even axial magnetic field of magnetic flux density according to claim 1, is characterized in that, the material of cylindrical housing (4) is soft iron material DT3.
8. the generation device of the continuous adjustable even axial magnetic field of magnetic flux density according to claim 1, is characterized in that, the material of intermediate cylindrical iron core (1) is high saturation magnetic flux density magnetically soft alloy 1J22.
9. the generation device of the continuous adjustable even axial magnetic field of magnetic flux density claimed in claim 1 produces adjustable even axial magnetic field method continuously, it is characterized in that, the method is:
Switch on power, power supply is that interior loop (7) and exterior loop (6) provide electric current, make interior loop (7) and exterior loop (6) produce equidirectional magnetic field, the size of the electric current that change power supply provides, the axial magnetic field density that interior loop (7) and exterior loop (6) are produced changes in 0 Gauss～2000 Gauss's scope in service area, make the magnetic flux density non-uniformity of the axial magnetic field that interior loop (7) and exterior loop (6) produce in 10%, realize the magnetic flux density generation of adjustable even axial magnetic field continuously.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270163A (en) * | 2014-09-23 | 2015-01-07 | 苏州云舒新材料科技有限公司 | Non-contact type radio |
| CN105551915A (en) * | 2016-02-02 | 2016-05-04 | 中国科学院电子学研究所 | Periodic permanent-magnet focusing system capable of regulating magnetic field and klystron |
| CN106406329A (en) * | 2016-11-21 | 2017-02-15 | 哈尔滨工业大学 | Space tumbling target de-spinning control method based on permanent magnet eddy current effect |
| CN108364745A (en) * | 2018-04-16 | 2018-08-03 | 武汉钢铁有限公司 | The enhancing compensation method of generation uniform magnetic field and device and its application method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000040616A (en) * | 1998-07-23 | 2000-02-08 | Sumitomo Metal Mining Co Ltd | Orienting device for annular permanent magnet and polarizing device for the same |
| CN201333424Y (en) * | 2008-12-30 | 2009-10-28 | 镇江市江南矿山机电设备有限公司 | Bipolar electric magnetic iron remover |
| CN103065761A (en) * | 2013-01-11 | 2013-04-24 | 哈尔滨工业大学 | Generation device for uniform radial magnetic fields continuously adjustable in magnetic flux density |
-
2014
- 2014-05-12 CN CN201410198665.8A patent/CN103943304A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000040616A (en) * | 1998-07-23 | 2000-02-08 | Sumitomo Metal Mining Co Ltd | Orienting device for annular permanent magnet and polarizing device for the same |
| CN201333424Y (en) * | 2008-12-30 | 2009-10-28 | 镇江市江南矿山机电设备有限公司 | Bipolar electric magnetic iron remover |
| CN103065761A (en) * | 2013-01-11 | 2013-04-24 | 哈尔滨工业大学 | Generation device for uniform radial magnetic fields continuously adjustable in magnetic flux density |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270163A (en) * | 2014-09-23 | 2015-01-07 | 苏州云舒新材料科技有限公司 | Non-contact type radio |
| CN105551915A (en) * | 2016-02-02 | 2016-05-04 | 中国科学院电子学研究所 | Periodic permanent-magnet focusing system capable of regulating magnetic field and klystron |
| CN106406329A (en) * | 2016-11-21 | 2017-02-15 | 哈尔滨工业大学 | Space tumbling target de-spinning control method based on permanent magnet eddy current effect |
| CN106406329B (en) * | 2016-11-21 | 2019-06-11 | 哈尔滨工业大学 | A kind of space Tum bling Target Racemization control method based on permanent-magnet eddy current effect |
| CN108364745A (en) * | 2018-04-16 | 2018-08-03 | 武汉钢铁有限公司 | The enhancing compensation method of generation uniform magnetic field and device and its application method |
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Application publication date: 20140723 |