CN108986611A - A kind of space magnetic field joins phenomena simulation device again - Google Patents
A kind of space magnetic field joins phenomena simulation device again Download PDFInfo
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- CN108986611A CN108986611A CN201810942246.9A CN201810942246A CN108986611A CN 108986611 A CN108986611 A CN 108986611A CN 201810942246 A CN201810942246 A CN 201810942246A CN 108986611 A CN108986611 A CN 108986611A
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- 238000004088 simulation Methods 0.000 title claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000000523 sample Substances 0.000 claims abstract description 6
- 230000005284 excitation Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
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- 235000007164 Oryza sativa Nutrition 0.000 description 1
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- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- 238000003745 diagnosis Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
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- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/181—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for electric and magnetic fields; for voltages; for currents
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Abstract
The invention discloses a kind of space magnetic fields to join phenomena simulation device again, is made of vacuum chamber, power-supply system, plasma stream emitter, field supply plate, diagnostic system.Vacuum chamber is for providing space magnetic field weight gang mould quasi- required vacuum environment, power-supply system is made of plasma source, heating source, magnetic confinement power supply, the electric current plate pulse power, plasma emission device uses heater-type oxide-coated cathode plasma source, stimulates cathode excitation to generate plasma stream by heating plasma source.Field supply plate is two pieces of parallel electric current plates for constructing magnetic field bit-type space magnetic field joins phenomenon again needed for, diagnostic system uses built-in probe to be controlled for detecting the generation of Magnetic Reconnection phenomenon, diagnostic system in vacuum chamber built-in space different location by electronic system.Join phenomena simulation again by the space magnetic field that the device can carry out large scale, preferably explores space magnetic field from the angle of experiment and join genesis mechanism again and exploratory carry out correlation practical application.
Description
Technical field
The present invention relates to the technical fields of Magnetic Reconnection simulation, and in particular to a kind of space magnetic field joins phenomena simulation dress again
It sets.
Background technique
Magnetic Reconnection phenomenon widely exists in physical phenomenon common in nature, such as solar flare, coronal mass ejection
During the dependent interaction of projectile, solar wind and earth magnetosphere etc..In Magnetic Reconnection generating process, finite conductivity etc.
In gas ions stream in locating magnetic field bit-type, live near the neutral conductor in the neutral point that magnetic field strength is zero, the magnetic in current sheet
The line of force is automatic or passively forces disconnection and reconnects.In the process, with magnetic energy discharge and be converted into etc. suddenly from
The kinetic energy and thermal energy of daughter cause the acceleration and heating of charged particle.Since the means that space magnetic field joins observation can not fill again
Point understand Magnetic Reconnection process mechanism, Magnetic Reconnection theory proposition after, by experiment simplation verification Magnetic Reconnection theory at
In order to which scientists verify the optimal selection of the process, and the country joins the big portion of experimental study of phenomenon for space magnetic field again at present
Divide the model research for being all based on small-sized shrinkage scale degree, higher Magnetic Reconnection phenomenon generation space can be provided by lacking one kind,
The experimental provision of bigger acute impact, therefore the invention proposes a kind of space magnetic fields to join the simulator of phenomenon again for carrying out
The experiment of large scale simplation verification.
Summary of the invention
It is an object of the invention to: join the limitations of the experimental study of phenomenon again to space magnetic field for the present country
And the space magnetic field of experiment large scale joins the limitation of phenomena simulation again, provides the simulation dress that a kind of space magnetic field joins phenomenon again
It sets, is tested for simplation verification.
The technical solution adopted by the present invention are as follows: a kind of space magnetic field joins phenomena simulation device again, by vacuum chamber, power supply system
System, plasma stream emitter, field supply plate, diagnostic system composition, wherein vacuum chamber joins again for providing space magnetic field
Vacuum environment required for simulating；Power-supply system is by plasma source, heating source, magnetic confinement power supply, electric current plate pulse power group
At plasma source is generated for generating required plasma source in simulation process, heating source for heating plasma
Required source, magnetic confinement power supply are used to provide the axial magnetic field space of constraint plasma stream, and the electric current plate pulse power is used for
There is provided pulse current on co-current plate to construct magnetic field bit-type required for Magnetic Reconnection；Plasma emission device uses
Heater-type oxide-coated cathode plasma source stimulates cathode excitation to generate plasma stream by heating plasma source；Magnetic field
Electric current plate is two pieces of parallel electric current plates for constructing magnetic field bit-type space magnetic field joins phenomenon again needed for；In diagnostic system uses
Probe is set for detecting the generation of Magnetic Reconnection phenomenon in vacuum chamber built-in space different location, diagnostic system is by electronic system
Control, can be in approximately the same plane by the mobile measurement for carrying out different location of coordinate.
Wherein, vacuum chamber both ends be designed as plasma source region for generate the required plasma stream of experiment, wherein one end
Mechanical pump is installed simultaneously and turbomolecular pump is vacuumized for cabin, vacuum chamber side arrangement there are multiple windows, for space
The generating process of Magnetic Reconnection is diagnosed.
Wherein, field supply plate is constituted using full copper, is designed by integrated molding to reduce the contact resistance of electric current plate.
The advantages of the present invention over the prior art are that:
(1) present invention preferably can join the mechanism of phenomenon generation from laboratory angle simulation space magnetic field again, process, decline
Subtract, compared to other devices, can preferably provide the simulated environment of large scale.
(2) present invention can more preferably provide diagnosis and the observing environment of phenomenon generation, due to the advantage of lab space scale,
The phenomenon that its simulation space magnetic field joins again becomes apparent, while the window that device itself provides can better diagnostic observations
Angle.
(3) efficient combination and optimization of the invention by each component of device, the electricity including such as ion source, integrated molding
The upgrading of flowing plate etc. can provide better space magnetic field and join phenomena simulation again.
Detailed description of the invention
Fig. 1 is that a kind of space magnetic field of the present invention joins phenomena simulation schematic device again；
Fig. 2 is that space magnetic field joins the vacuum chamber of phenomena simulation device and the flange of connecting movable sleeve and fluorine rubber ring again；
Fig. 3 is heater-type oxide-coated cathode plasma source；
Fig. 4 is adjustable magnetic confinement coil.
In figure, 1 is field supply plate, and 2 be magnetic confinement coil, and 3 be diagnostic window, and 4 be vacuum chamber, and 5 be plasma source,
6 be vacuum pumping hole, and 7 be sealing ring, and 8 be anode, and 9 be cathode, and 10 be heating source, and 11 be heat reflection plate.
Specific embodiment
With reference to the accompanying drawing and specific embodiment further illustrates the present invention.
As shown in Figure 1, a kind of space magnetic field of the present invention joins phenomena simulation device by vacuum chamber 4, power-supply system, plasma again
Body stream emitter, field supply plate 1, diagnostic system composition.
Vacuum chamber 4 for providing space magnetic field weight gang mould quasi- required vacuum environment, take out equipped with vacuum by 4 both ends of vacuum chamber
Stomata 6,4 both ends of vacuum chamber be designed as plasma source region for generate the required plasma stream of experiment, wherein one end is pacified simultaneously
Dress mechanical pump and turbomolecular pump are vacuumized for cabin, and 4 side arrangement of vacuum chamber has multiple diagnostic windows 3, for space
The generating process of Magnetic Reconnection is diagnosed.
Power-supply system is made of plasma source 5, heating source 10, magnetic confinement power supply, the electric current plate pulse power, plasma
Source 5 is for generating required plasma source in simulation process, required for heating source 10 is generated for heating plasma
Source, magnetic confinement power supply are used to provide the axial magnetic field space of constraint plasma stream, and the electric current plate pulse power is for providing pulse
Electric current on co-current plate to construct magnetic field bit-type required for Magnetic Reconnection.
Plasma emission device uses heater-type oxide-coated cathode plasma source, is stimulated by heating plasma source
Cathode excitation generates plasma stream.
Field supply plate 1 is two pieces of parallel electric current plates for constructing magnetic field bit-type space magnetic field joins phenomenon again needed for,
Electric current plate is constituted using full copper, is designed by integrated molding to reduce the contact resistance of electric current plate,
Diagnostic system uses built-in probe to be used in vacuum chamber built-in space different location to detect Magnetic Reconnection phenomenon
Occur, diagnostic system is controlled by electronic system, can be in approximately the same plane by the mobile measurement for carrying out different location of coordinate.
Vacuum chamber 4 is made of two stainless steel drums, passes through the flange and fluorine rubber ring composition of a loop between drum
Sealing ring 7 realize be tightly connected.Vacuum chamber 4 is fixed on magnetic confinement coil inside by horizontal rail and bracket, then installs
On the pedestal made of epoxy resin.Whole device itself is all fixed on the platform made of angle bar welding, platform
There are multiple metal wheels in lower section, and metal wheel is placed on the track of ground configuration, not only ensure that the horizontality of device in this way, but also
Convenient for the mobile detachability of device.
Vacuum system is made of extract system, measuring system, leak detection and analysis system.Extract system by composite molecular pump,
Rotary-vane vaccum pump and condenser pump composition.
Join the beginning of phenomena simulation experiment again in space magnetic field, vacuum chamber rush at vacuum by evacuated air hole
Reason, the length of vacuum chamber are 10 meters, and radius is 3 meters.
Space magnetic field joins the heater-type oxide yin that phenomena simulation device is used by heating plasma emitter again
For pole plasma source to excite the generation of plasma stream, heater-type oxide-coated cathode plasma source uses cake type knot
Structure is mounted on one end of vacuum chamber, so that the cathode of plasma source is met operating temperature by the high-temperature heating system of auxiliary.Such as figure
Shown in 3, heater-type oxide-coated cathode plasma source includes anode 8, cathode 9, heating source 10 and heat reflection plate 11.
By the unified axial centre position parallel arranged in multiple groups magnetic confinement coil edge in vacuum chamber around vacuum chamber 4
Near center location generate the magnetic field section of one piece of approaches uniformity, this section is used in space magnetic field join the simulation of phenomenon again
Plasma stream is constrained in journey, thus guarantee that plasma stream is near axial position during the experiment, with
Convenient for the magnetic field configuration control of which of building.
Magnetic confinement coil 2 is formed using the series connection coiling of more cake circular coils, and the radius of every cake coil is 2 meters, and coil is by aluminium
Prepared material constitutes the weight that can mitigate coil to a certain extent, wherein each cake coil is arranged by multiturn coil, and it is every
Gap among circle coil is filled by resin material, thereby may be ensured that the fixation of coil shape.Among every two cakes coil
Electric current connecting line by the wrapped with insulation of magnetic screen, thereby may be ensured that electric current connecting line will not be to the magnetic field in vacuum chamber
It impacts.
Magnetic confinement coil power uses DC Steady electric current, during experiment, by guaranteeing that the supply of electric current makes magnetic
The constraint for the magnetic field plasma stream that constraint coil generates always exists.
The electric current plate pulse power connect electric current plate positive and negative end, for the pulse power use frequency and current amplitude with
And the pulsed discharge power supply that rise and fall time section is controllable, the circuit the RLC structure that pulsed discharge power supply is made of capacitor and inductor resistance
At.During experiment, the pulse power persistently applies pulse current to electric current plate according to certain frequency to constitute space magnetic
Connection phenomena simulation tests required magnetic field bit-type again for field.
Co-current plate in vacuum chamber 4 is made of the copper product of integrated molding, and shape is 2.5 meters wide, thickness 0.1
The copper sheet of rice.Since the two-stage of copper sheet needs to connect the current feed outside vacuum chamber, the structure plasma stream at copper sheet both ends
Control have a significant impact, therefore copper sheet using integrated molding as a result, it is possible to prevente effectively from electric current board ends are made because of welding
At influence of the contact resistance to magnetic field.
There are many places windows in vacuum chamber 4 for connecting multiclass detection device, including diagnostic device, vacuum measurement equipment,
Electrical connection equipment, air inlet gas-discharging equipment have been used in different position detection test effects.
The diagnostic system of electronic system control is equipped in vacuum chamber 4 simultaneously.Diagnostic system is arranged in by many places diagnostic probe
Same plane changes according to the frequency of experiment, and after each frequency, diagnostic probe is carried out according to the position that next frame is set
It is mobile, to realize to multipoint information monitoring.
Claims (3)
1. a kind of space magnetic field joins phenomena simulation device again, it is characterised in that: sent out by vacuum chamber, power-supply system, plasma stream
Injection device, field supply plate, diagnostic system composition, wherein vacuum chamber is quasi- required true for providing space magnetic field weight gang mould
Altitude；Power-supply system is made of plasma source, heating source, magnetic confinement power supply, the electric current plate pulse power, and plasma source is used
In generating required plasma source in simulation process, source required for heating source is generated for heating plasma, magnetic is about
Beam power supply is used to provide the axial magnetic field space of constraint plasma stream, and the electric current plate pulse power is for providing pulse current in flat
To construct magnetic field bit-type required for Magnetic Reconnection on row electric current plate；Plasma emission device uses heater-type oxide-coated cathode
Plasma source stimulates cathode excitation to generate plasma stream by heating plasma source；Field supply plate is two pieces parallel
Electric current plate for constructing magnetic field bit-type space magnetic field joins phenomenon again needed for；Diagnostic system is used for using built-in probe in vacuum
To detect the generation of Magnetic Reconnection phenomenon, diagnostic system is controlled cabin built-in space different location by electronic system, can be same
Plane is by the mobile measurement for carrying out different location of coordinate.
2. a kind of space magnetic field according to claim 1 joins phenomena simulation device again, it is characterised in that: vacuum chamber both ends are set
Be calculated as plasma source region for generate test needed for plasma stream, wherein one end while mechanical pump and turbomolecular pump being installed
It is vacuumized for cabin, vacuum chamber side arrangement has multiple windows, for diagnosing to the generating process that space magnetic field joins again.
3. a kind of space magnetic field according to claim 1 joins phenomena simulation device again, it is characterised in that: field supply plate is adopted
It is constituted, is designed by integrated molding to reduce the contact resistance of electric current plate with full copper.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109677645A (en) * | 2019-01-24 | 2019-04-26 | 哈尔滨工业大学 | Simulate the computer simulated plasma device and its implementation of three-dimensional asymmetric magnetic reconnection |
| CN109785718A (en) * | 2019-01-24 | 2019-05-21 | 哈尔滨工业大学 | A kind of ground simulator and method for simulating earth magnetic tail three-dimensional magnetic reconnection |
| CN115856461A (en) * | 2022-07-29 | 2023-03-28 | 哈尔滨工业大学 | Magnetic layer top three-dimensional asymmetric magnetic reconnection ground simulation vacuum cabin and vacuum device |
| CN116206517A (en) * | 2023-03-14 | 2023-06-02 | 哈尔滨工业大学 | Ground simulation device and method for magnetic field structure of polar tip region of earth magnetic layer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109785718A (en) * | 2019-01-24 | 2019-05-21 | 哈尔滨工业大学 | A kind of ground simulator and method for simulating earth magnetic tail three-dimensional magnetic reconnection |
| CN109677645B (en) * | 2019-01-24 | 2021-10-22 | 哈尔滨工业大学 | Plasma simulation device for simulating three-dimensional asymmetric magnetic reconnection and implementation method thereof |
| CN115856461A (en) * | 2022-07-29 | 2023-03-28 | 哈尔滨工业大学 | Magnetic layer top three-dimensional asymmetric magnetic reconnection ground simulation vacuum cabin and vacuum device |
| CN116206517A (en) * | 2023-03-14 | 2023-06-02 | 哈尔滨工业大学 | Ground simulation device and method for magnetic field structure of polar tip region of earth magnetic layer |
| CN116206517B (en) * | 2023-03-14 | 2023-07-18 | 哈尔滨工业大学 | Ground simulation device and method for magnetic field structure of polar tip region of earth magnetic layer |
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