CN105372608A - Device for testing magnetic levitation characteristics of high-temperature superconducting coil in variable high magnetic field - Google Patents
Device for testing magnetic levitation characteristics of high-temperature superconducting coil in variable high magnetic field Download PDFInfo
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- CN105372608A CN105372608A CN201510981947.XA CN201510981947A CN105372608A CN 105372608 A CN105372608 A CN 105372608A CN 201510981947 A CN201510981947 A CN 201510981947A CN 105372608 A CN105372608 A CN 105372608A
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- high temperature
- superconductor coil
- temperature superconductor
- temperature superconducting
- superconducting coil
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1261—Measuring magnetic properties of articles or specimens of solids or fluids using levitation techniques
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a device for testing magnetic levitation characteristics of a high-temperature superconducting coil in a variable high magnetic field. The device is characterized in that an insulated support plate is fixed at the top of a Dewar through support rods, a servo motor is arranged on the support plate, and a downward motor shaft of the servo motor sequentially passes through a guide rod, a tri-axial force sensor and a dowel bar to be connected with the high-temperature superconducting coil; a sensing head of a displacement sensor on the support plate is connected with the guide rod; a T-shaped liquid nitrogen container with open upper part is laid in a room temperature hole in the middle of the Dewar, the high-temperature superconducting coil is located at the middle-lower part of the inner chamber of the T-shaped liquid nitrogen container, and terminals of the high-temperature superconducting coil are connected with current lead junction poles on the support rod through current leads; an annular superconducting magnet is arranged on a chamber wall, surrounding the room temperature hole, of the Dewar. The device can test the magnetic levitation characteristics of the high-temperature superconducting coil in the variable high magnetic field, so that reliable magnetic levitation characteristic test data can be provided for design and development of high-temperature superconducting magnetically levitated trains.
Description
Technical field
The present invention relates to super-conductive magnetic suspension field, is specifically a kind of high temperature superconductor coil magnetic suspension force proving installation.
Background technology
The phenomenon that when temperature of superconductor is reduced to below specific critical temperature, resistivity suddenly disappears is called the zero resistance effect of superconductor.Due to zero resistance effect, very large electric current can be born with the superconducting coil of superconducting wire coiling, thus produce very highfield.The magnetic field that the electric current continuing flowing in superconducting coil produces and external magnetic field interact, thus produce super-conductive magnetic suspension phenomenon.
High-temperature superconducting maglev train is one of high temperature superconductor coil important application in magnetic levitation technology field, during development and design high-temperature superconducting maglev train, must carry out detailed research and test to the various magnetic levitation performances of high temperature superconductor coil.But existing high-temperature superconducting magnetic levitation proving installation can only test the magnetic levitation performance of high-temperature superconducting block under permanent magnet background magnetic field.And the magnetic levitation performance of the high temperature superconductor coil under the induction variable background magnetic field conditions of high-temperature superconducting maglev train can not be tested, reliable magnetic levitation performance test data cannot be provided for the development and design of high-temperature superconducting maglev train.
Summary of the invention
The object of this invention is to provide a kind of device testing high temperature superconductor coil magnetic suspension force characteristic, this device can test the levitation force of high temperature superconductor coil under variable highfield; Thus can be design, the development of high-temperature superconducting maglev train, reliable magnetic levitation performance test data are provided.
The present invention realizes the technical scheme that its goal of the invention adopts: a kind of device testing high temperature superconductor coil magnetic suspension force characteristic, and its design feature is:
The back up pad of insulation is fixed on the top of Dewar by vertical support bar; Back up pad has servomotor, and the downward motor shaft of servomotor is connected with high temperature superconductor coil by guide pole, triaxial force sensor, transmission rod successively; The sensing head of the displacement transducer in back up pad is connected with guide pole;
Room temperature hole is provided with in the middle part of described Dewar, the T-shaped liquid nitrogen container of open topped is shelved in room temperature hole, the unsettled middle and lower part being placed in T-shaped liquid nitrogen container inner chamber of high temperature superconductor coil, the terminals of high temperature superconductor coil are connected with the current feed junction pole in back up pad by current feed;
Described Dewar places ring-like superconducting magnet around on the chamber wall in room temperature hole.
The course of work of the present invention and principle as follows:
Drive guide pole, triaxial force sensor, transmission rod to drive high temperature superconductor coil to move down successively by servomotor, the distance that displacement transducer real time record high temperature superconductor coil moves down, stop when high temperature superconductor coil arrives superconducting magnet center.Liquid nitrogen is injected, until current feed immerses liquid nitrogen completely to T-shaped liquid nitrogen container.After high temperature superconductor coil cooling is stable, current feed junction pole is connected external dc power, leads to direct current to high temperature superconductor coil, produce downward magnetic field.Then lead to direct current to superconducting magnet, produce magnetic field upwards.Magnetic field upwards and downward magnetic field interaction produce suspending power, and pass to triaxial force sensor through transmission rod, the force data of triaxial force sensor to three directions that high temperature superconductor coil is subject to carries out Real-time Collection.The galvanic direction that change superconducting magnet and high temperature superconductor coil pass into and size, under different background magnetic field can be measured, under different high temperature superconductor coil current conditions, the power that high temperature superconductor coil is subject in three directions, thus the magnetic levitation performance test completing high temperature superconductor coil.
In the process of driven by servomotor high temperature superconductor coil motion, record the force data in three directions that high temperature superconductor coil is subject to and the distance that high temperature superconductor coil moves down simultaneously, then can test out the magnetic levitation performance of high temperature superconductor coil in dynamic mobile process.
Compared with prior art, the invention has the beneficial effects as follows:
One, the background magnetic field that apparatus of the present invention provide is produced by superconducting magnet, and the magnetic field that this magnet produces is variable magnetic field, can control the background magnetic field that magnet produces arbitrary size and rate of change by controlling electric current; And the power of test is the suspending power that high temperature superconductor coil is subject to.It is variable with the background magnetic field of high-temperature superconducting maglev train, respond to what produce suspending power is that the situation of high temperature superconductor coil is identical.Namely also it can test the levitation force of high temperature superconductor coil under variable highfield, thus can be design, the development of high-temperature superconducting maglev train, provides reliable magnetic levitation performance test data.
Two, servomotor of the present invention can control guide pole decline rate, not only can test the magnetic levitation performance under high temperature superconductor coil static state; Under the dynamic condition of speed change lifting can also be tested, the magnetic levitation performance of high temperature superconductor coil.
Above-mentioned transmission rod is that the nonmetallic materials of high strength and low thermal contraction coefficient are made.
When transmission rod immerses or when stretching out liquid nitrogen container, expanding with heat and contract with cold of transmission rod is little, the error of high temperature superconductor coil displacement movement can be reduced, make its test result more accurately, reliable.
Above-mentioned current feed is high-temperature superconductive lead wire.
The high-temperature superconductive lead wire being arranged in liquid nitrogen container is in superconducting state, and resistance is zero, does not generate heat.Effectively can reduce the volatilization of liquid nitrogen in liquid nitrogen container, reduce testing cost.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the device schematic diagram of the embodiment of the present invention.
Specific implementation method
Embodiment
Fig. 1 illustrates, a kind of embodiment of the present invention is, high temperature superconductor coil magnetic levitation characteristic test device under a kind of variable highfield, and its composition is: the back up pad 1 of insulation is fixed on the top of Dewar 3 by vertical support bar 2; Back up pad 1 has servomotor 6, the downward motor shaft of servomotor 6 is connected with high temperature superconductor coil 13 by guide pole 6a, triaxial force sensor 9, transmission rod 10 successively; The sensing head of the displacement transducer 8 in back up pad 1 is connected with guide pole 6a;
Room temperature hole 5 is provided with in the middle part of described Dewar 3, the T-shaped liquid nitrogen container 11 of open topped is shelved in room temperature hole 5, the unsettled middle and lower part being placed in T-shaped liquid nitrogen container 11 inner chamber of high temperature superconductor coil 13, the terminals of high temperature superconductor coil 13 are connected with the current feed junction pole 7 in back up pad 1 by current feed 12;
Described Dewar 3 places ring-like superconducting magnet 4 around on the chamber wall in room temperature hole 5.
The transmission rod 10 of this example is that the nonmetallic materials of high strength and low thermal contraction coefficient are made.
The current feed 12 of this example is high-temperature superconductive lead wire.
Claims (3)
1. a high temperature superconductor coil magnetic levitation characteristic test device under variable highfield, its composition is:
The back up pad (1) of insulation is fixed on the top of Dewar (3) by vertical support bar (2); Back up pad (1) has servomotor (6), the downward motor shaft of servomotor (6) is connected with high temperature superconductor coil (13) by guide pole (6a), triaxial force sensor (9), transmission rod (10) successively; The sensing head of the displacement transducer (8) in back up pad (1) is connected with guide pole (6a);
Described Dewar (3) middle part is provided with room temperature hole (5), the T-shaped liquid nitrogen container (11) of open topped is shelved in room temperature hole (5), the unsettled middle and lower part being placed in T-shaped liquid nitrogen container (11) inner chamber of high temperature superconductor coil (13), the terminals of high temperature superconductor coil (13) are connected with the current feed junction pole (7) in back up pad (1) by current feed (12);
Ring-like superconducting magnet (4) placed by the chamber wall of described Dewar (3) around room temperature hole (5).
2. a kind of device testing high temperature superconductor coil magnetic suspension force characteristic according to claim 1, is characterized in that: described transmission rod (10) is made for the nonmetallic materials of high strength and low thermal contraction coefficient.
3. a kind of device testing high temperature superconductor coil magnetic suspension force characteristic according to claim 1, is characterized in that: described current feed (12) is high-temperature superconductive lead wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510981947.XA CN105372608A (en) | 2015-12-23 | 2015-12-23 | Device for testing magnetic levitation characteristics of high-temperature superconducting coil in variable high magnetic field |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510981947.XA CN105372608A (en) | 2015-12-23 | 2015-12-23 | Device for testing magnetic levitation characteristics of high-temperature superconducting coil in variable high magnetic field |
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| CN105372608A true CN105372608A (en) | 2016-03-02 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738680A (en) * | 2016-04-08 | 2016-07-06 | 西南交通大学 | Test apparatus and test method for anisotropy of high temperature superconducting belt material under tension |
| CN106646292A (en) * | 2017-02-22 | 2017-05-10 | 西南交通大学 | Testing device for suspension and guide characteristics of high-temperature superconducting bulk material under high temperature condition |
| CN109143127A (en) * | 2018-09-29 | 2019-01-04 | 北京交通大学 | Superconducting tape magnetic signature measuring device |
| CN113109747A (en) * | 2021-06-15 | 2021-07-13 | 西南交通大学 | Superconducting magnetic suspension micro-suspension force rapid testing device and testing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001196224A (en) * | 2000-01-14 | 2001-07-19 | Toshiba Corp | Superconducting equipment for magnetic levitation |
| CN1619268A (en) * | 2003-11-21 | 2005-05-25 | 北京有色金属研究总院 | Measuring device of block high temperature superconductor magnetic suspension floating force and its testing method |
| CN101191748A (en) * | 2006-11-20 | 2008-06-04 | 北京航空航天大学 | High temperature superconduction magnetic levitation or electric machine quasi-static force test device |
| CN205317921U (en) * | 2015-12-23 | 2016-06-15 | 西南交通大学 | High temperature superconducting coil magnetic suspension characteristic test equipment under variable high field |
-
2015
- 2015-12-23 CN CN201510981947.XA patent/CN105372608A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001196224A (en) * | 2000-01-14 | 2001-07-19 | Toshiba Corp | Superconducting equipment for magnetic levitation |
| CN1619268A (en) * | 2003-11-21 | 2005-05-25 | 北京有色金属研究总院 | Measuring device of block high temperature superconductor magnetic suspension floating force and its testing method |
| CN101191748A (en) * | 2006-11-20 | 2008-06-04 | 北京航空航天大学 | High temperature superconduction magnetic levitation or electric machine quasi-static force test device |
| CN205317921U (en) * | 2015-12-23 | 2016-06-15 | 西南交通大学 | High temperature superconducting coil magnetic suspension characteristic test equipment under variable high field |
Non-Patent Citations (4)
| Title |
|---|
| J JIANG ET AL: "Levitation forces of a bulk YBCO superconductor in gradient varying magnetic fields", 《INTERNATIONAL JOURNAL OF MODERN PHYSICS B》 * |
| SHUNSUKE OHASHI ET ALL: "Influence of the Damper Coil System on the Levitation Characteristics in the Superconducting Magnetically Levitated System in Case of SC Coil Quenching", 《IEEE TRANSACTIONS ON MAGNETICS》 * |
| T.SUZUKI ET AL: "A study on levitation force and its time relaxation behavior for a bulk superconductor-magnet system", 《PHYSICA C SUPERCONDUCTIVITY》 * |
| 李靖: "扁平型三相绕组上方高温超导磁体力学性能研究", 《中国博士学位论文全文数据库 工程科技II辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738680A (en) * | 2016-04-08 | 2016-07-06 | 西南交通大学 | Test apparatus and test method for anisotropy of high temperature superconducting belt material under tension |
| CN105738680B (en) * | 2016-04-08 | 2019-01-18 | 西南交通大学 | The anisotropic test device of high-temperature superconductor band and test method under a kind of pulling force |
| CN106646292A (en) * | 2017-02-22 | 2017-05-10 | 西南交通大学 | Testing device for suspension and guide characteristics of high-temperature superconducting bulk material under high temperature condition |
| CN109143127A (en) * | 2018-09-29 | 2019-01-04 | 北京交通大学 | Superconducting tape magnetic signature measuring device |
| CN113109747A (en) * | 2021-06-15 | 2021-07-13 | 西南交通大学 | Superconducting magnetic suspension micro-suspension force rapid testing device and testing method |
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Application publication date: 20160302 |