CN106371043A - Superconducting tape testing device - Google Patents
Superconducting tape testing device Download PDFInfo
- Publication number
- CN106371043A CN106371043A CN201610673749.1A CN201610673749A CN106371043A CN 106371043 A CN106371043 A CN 106371043A CN 201610673749 A CN201610673749 A CN 201610673749A CN 106371043 A CN106371043 A CN 106371043A
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- Prior art keywords
- superconducting tape
- clamping body
- test device
- superconducting
- screw rod
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Classifications
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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
- G01R33/1238—Measuring superconductive properties
- G01R33/1246—Measuring critical current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/007—Environmental aspects, e.g. temperature variations, radiation, stray fields
Abstract
The invention provides a superconducting tape testing device which comprises a testing station and a Duwa container wherein the testing station further includes a base; a stretching part consisting of several first screw rods that stand vertically on the base and a sliding plate cooperating with the first screw rods; a fixing part consisting of a lower clamping body arranged on the base and an upper clamping body arranged in a rotation manner on the sliding plate; and a twisting part consisting of several rotation plates arranged on the upper clamping body through several vertical rods. The rotation plates can drive the upper clamping body to rotate. The Duwa container is filled with liquid nitrogen which cools the superconducting tape to a superconducting state. The superconducting tape testing device of the present invention integrates the functions of tape fixing, stretching and twisting and is capable of performing critical current testing under stretching and twisting combined stresses, and the stretching and twisting combined stresses can be easily adjusted. Therefore, the testing device has high testing efficiency.
Description
Technical field
The present invention relates to superconducting cable technical field, specifically, it is related to a kind of superconducting tape test device.
Background technology
With the development of superconductor technology, superconductor has progressively been applied to the fields such as electric power, medical science.Existing many both at home and abroad
Bar hyperconductive cable hanging net operation, high resolution, using superconducting magnet manufacture mri (nuclear magnetic resonance) have been used for physical examination.
It can be said that superconducting tape is superconductor application form main.
Superconducting tape in use, the power such as inevitably will be stretched and reverse, when such as hyperconductive cable manufactures,
Superconducting tape is regular with pitch at a certain angle to be stranded on supporter, is made by axial tension and stranded power simultaneously
With.
Superconductor is generally ceramic material, and property is brittle and fragile, once superconducting ceramicses are destroyed, its critical current
Or diamagnetism necessarily declines, impact is produced on the performance of product.Therefore, superconducting tape before manufacturing for technique it is necessary to right
Its stretch-proof and resistance to twisting property are tested.
A kind of high-temperature superconductor band Mechanics Performance Testing is provided in prior art, such as patent of invention 201510316163.5
Device and its detection method, propose a kind of test superconducting tape bending radius and tensile stress testing jig, but cannot test superconduction
Critical current situation of change under twisting states for the band.Propose a kind of high temperature in utility model 200420009983.7 to surpass
Conduction band material testing jig, this testing jig also cannot realize the test of critical current under twisting states for the superconducting tape.
Content of the invention
The invention provides a kind of superconducting tape test device, bear tension, distorting stress in order to test superconducting tape
Under conditions of critical current.
According to an aspect of the invention, it is provided a kind of superconducting tape test device, including testboard and Dewar tank, its
In, testboard includes again: base；Extension section, described extension section includes many first screw rods being erected on base and with
The slide plate of one screw flight cooperation；Fixed part, described fixed part includes the lower clamping body being arranged on base and rotationally
It is arranged on the upper clamping body on slide plate；Torsional part, described torsional part includes being arranged on above upper clamping body by many vertical rods
Rotating disk, is filled with the liquid nitrogen for superconducting tape is cooled to superconducting state in Dewar tank.
Especially, wherein, the material of described upper clamping body and lower clamping body is red copper.
Especially, wherein, described Dewar tank is located at the lower section of testboard, and Dewar tank passes through the second screw rod lifting.
Especially, wherein, scale is had on the excircle of rotating disk.
Especially, wherein, extension section also has pulling force sensor.
Especially, wherein, described first screw rod, the second screw rod are rotated by motor.
According to another aspect of the present invention, provide a kind of superconducting tape method of testing, using above-described superconductive tape
Material test device, carries out following steps: using the two ends of upper clamping body and the fixing superconducting tape of lower clamping body, slide plate is along the first spiral shell
Bar moves up, and applies suitable pretension it is ensured that band is in vertical state；Extracted current lead and voltage lead；Apply
Tension: slide plate moves up along the first screw rod, measures value of thrust by pulling force sensor, reaches setting value of thrust tail skid and stops
Only；Apply distorting stress: torsional part automatic or manual rotation, stop after reaching set angle；Tension and/or torsion are applied
After stress, Dewar tank is moved upward to specified location along the second screw rod, and superconducting tape is cooled to below critical temperature, reaches super
Lead state；Current source is energized to superconducting tape through current feed, is tested.
Brief description
By being described to embodiment with reference to accompanying drawings below, the features described above of the present invention and technological merit will become
More clear and easy to understand.
Fig. 1 is the schematic perspective view one of the superconducting tape test device representing the embodiment of the present invention；
Fig. 2 is the schematic perspective view two of the superconducting tape test device representing the embodiment of the present invention；
Fig. 3 is the front view of the superconducting tape test device representing the embodiment of the present invention；
Fig. 4 is the side view of the superconducting tape test device representing the embodiment of the present invention；
Fig. 5 is the flow chart of the superconducting tape method of testing representing the embodiment of the present invention.
Specific embodiment
The embodiment of superconducting tape test device of the present invention to be described below with reference to the accompanying drawings.This area common
Technical staff will be consequently realised that, in the case of without departing from the spirit and scope of the present invention, can by with various different in the way of or
A combination thereof is modified to described embodiment.Therefore, accompanying drawing and description are inherently illustrative, rather than are used for limiting
Scope of the claims processed.Additionally, in this manual, accompanying drawing draws not in scale, and identical reference table
Show identical part.
The invention discloses a kind of superconducting tape test device, as shown in figure 1, include the testboard being placed in casing 30
10 and Dewar tank 20, testboard 10 is fixed on the top of casing 30, for fixing, stretching, reverse superconducting tape, and Dewar tank 20
It is located in the lower section of testboard 10, it can move up and down, and is filled with liquid nitrogen in Dewar tank 20, cold for carrying out to superconducting tape
But so as to be cooled to below critical temperature, reach superconducting state.Fig. 2 is the schematic perspective view two of superconducting tape test device, is aobvious
Show conveniently, eliminate casing 30.As shown in Fig. 2 testboard 10 includes base 101 and is arranged on the stretching on base 101 again
Portion, torsional part, fixed part.Base 101 is used for supporting installs each part, and base 101 is triangle, and extension section includes many settings
The first screw rod 104 on base 101 and the slide plate 108 with the cooperation of the first screw rod 104 screw thread, specifically, are in base
On 101 three angles, it is respectively arranged with the first screw rod 104 of three settings, three screwed holes, slide plate are had on slide plate 108
It is connected horizontally on screw rod by screwed hole.First screw rod 104 is connected with motor (not shown) respectively, and motor can be arranged on
In base 101.Motor drives screw rod 104 to rotate so that slide plate 108 moves up and down along the first screw rod 104.And fixed part includes setting
Put in the lower clamping body 102 on base 101 and be rotatably arranged in the upper clamping body 103 on slide plate 108.The lower end of band
It is fixed on lower clamping body 102, the upper end of band is fixed on clamping body 103, can pass through the various ways such as bolt will carry
Material is fixed on upper and lower clamping body so that band is vertically strained.Upper clamping body 103 is arranged on slide plate 108 by such as bearing
On.Upper clamping body and lower clamping body are made up of the material conducting electricity very well, such as red copper.
Superconduction belt material critical current test needs to be respectively welded a current feed at the two ends of superconducting tape, simultaneously super
On conduction band material weld two voltage leads, described superconducting tape is placed in liquid helium or liquid nitrogen environment, current feed another
End connects the current source outside liquid helium or liquid nitrogen environment, and current source passes through the electricity that current feed applies to be continually changing to superconducting tape
Stream, and the other end of voltage lead is connected with the voltage test device outside liquid helium or liquid nitrogen environment, is filled by described voltage tester
Put and record magnitude of voltage, record described magnitude of voltage, and record the current value obtaining flowing through superconducting tape during magnitude of voltage accordingly simultaneously,
Magnitude of voltage and current value are transferred to computer and carry out data processing, obtain the critical current of superconducting tape.Therefore, from lower clamping
Test current feed 1021 can be drawn on body 102 be connected with current source, extracted current lead on upper clamping body 103
1031, then, superconducting tape is choosing measurement point weldingvoltage lead, during test, electric current is from current source through current feed
1021 are transmitted on lower clamping body 102, then are transmitted on superconducting tape 105 by lower clamping body 102, through current feed 1031 shape
Become loop.It is connected to voltage test device from voltage lead, measure.
After the upper and lower side of band is fixing, controlled motor drives the first screw rod 104 to rotate, and slide plate 108 can be along the first spiral shell
Bar 104 moves up and down, and slide plate 108 moves up, just puller strap material upwards.Especially, pulling force is also equipped with testboard pass
Sensor, for detecting the pulling force suffered by superconducting tape, thus precise control superconducting tape experiment pulling force.
Torsional part includes being arranged on the rotating disk 107 of upper clamping body 103 top by many vertical rods.On upper clamping body 103,
Three vertical rods 109 are had to be fixedly connected with upper clamping body 103, the top of vertical rod 109 is fixedly connected with rotating disk 107, the axle of rotating disk 107
Line is with the superconducting tape clamped by upper clamping body, lower clamping body on the same line.The top of rotating disk 107 is provided with knob
1071 that is to say, that rotating disk 107 can hand rotation, it is of course also possible to use Motor drive rotating disk 107.The rotation of rotating disk 107
It is transferred to upper clamping body 103 through three vertical rods 109, in drive, clamping body 103 also correspondingly rotates, and superconducting tape 105 is upper
End is fixed on clamping body 103, and lower end is fixed on lower clamping body 102, and therefore, superconducting tape twists with rotating disk 107.
Bear default pulling force, in the case of moment of torsion, superconducting tape be energized, you can carry out superconduction belt material critical current in superconducting tape
Test.
The superconducting tape test device of the present invention is integrated with fixing, stretching, reverses the function of band, can complete stretching,
Reverse the critical current test under combined stress, and stretch and can be conveniently adjusted with distorting stress.
Additionally, there is scale on the excircle of rotating disk 107, knob 1071 having arrow, being easy to control band
Material windup-degree.But, if adjusting windup-degree using manual, then windup-degree can only be controlled it is impossible to control the torsion applying
Square.Windup-degree is adjusted using motor, due to formula t (moment of torsion)=p (power) ÷ ω (angular velocity), windup-degree can be passed through
To control the moment of torsion of applying, its test result is more accurate.It is of course also possible to arrange torsion torque sensor to control the torsion of applying
Square.
Dewar tank 20 includes the container 203 of upper shed made using low temperature material, and is wherein filled with liquid nitrogen.?
The side of container 203 is provided with the second screw rod 201 of setting, and container 203 is arranged on the second screw rod 201 by connector 202,
And the horizontal movement of container 203 is limited by slide rail 204.Connector 202 have with second screw rod cooperation female thread, second
Screw rod and motor connection, are rotated by Motor drive second screw rod, and container 203 can move up and down.Band applied stretching,
After reversing iso-stress, control container 203 moves to band test zone, so that superconducting tape is immersed in liquid nitrogen, is cooled to stagnation temperature
Below degree, reach superconducting state.
This test device also includes control unit, control unit and each motor, sensor and current source, voltage tester dress
Put etc. and there is circuit connect, in order to this device of start and stop, control the tensile stress value applying and torque value, and the electricity of the change applying
Flow valuve etc.
According to another aspect of the present invention, provide a kind of superconducting tape method of testing, using above-described superconductive tape
Material test device, follows the steps below:
Step s102, clamps the lower end of superconducting tape using lower clamping body, clamps the upper of superconducting tape using upper clamping body
End, starts motor and drives the first screw rod 104 to rotate so that slide plate moves up, and be arranged on upper clamping body 3 on slide plate then to
Upper tension superconducting tape, applies suitable pretension upwards it is ensured that band is in plumbness.
Step s104, extracted current lead and voltage lead, specifically, are extracted current leads on lower clamping body
1021, extracted current lead 1031 on upper clamping body.In superconducting tape surface appropriate location weldingvoltage lead, voltage lead
Connect with outside voltage test device.
Step s106, applies tension: setting value of thrust, after starter, slide plate is automatically moved up, and passes by pulling force
Sensor measures value of thrust, reaches setting value of thrust tail skid and stops.
And/or step s108, apply distorting stress: setting windup-degree, after starter, torsional part automatic or manual revolves
Turn, stop after reaching set angle.
Step s1010, Dewar tank is automatically moved up along the second screw rod, moves to specified location, carries out liquid nitrogen filling,
Superconducting tape cooling superconducting tape to below critical temperature, is reached superconducting state by liquid nitrogen；
Step s1012, applies the electric current being continually changing by current feed to superconducting tape.Filled by described voltage tester
Put and record magnitude of voltage, record described magnitude of voltage, and record the current value obtaining flowing through superconducting tape during magnitude of voltage accordingly simultaneously,
Magnitude of voltage and current value are transferred to computer and carry out data processing, obtain the critical current of surveyed superconducting tape.
The superconducting tape test device of the application present invention, at least can complete following 4 kinds of measurement scheme:
(1) superconducting tape only tension stress when critical current situation of change, thus judge superconducting tape critical stretching should
Become；
(2) tensile force is certain, critical current situation of change when superconducting tape reverses different angle；
(3) windup-degree is certain, and superconducting tape is subject to the critical current situation of change of superconducting tape during different stretch power；
(4) when windup-degree and tensile force change simultaneously, the critical current situation of change of superconducting tape.
The superconducting tape test device of the present invention is integrated with function that is fixing, stretching, reverse band, can individually complete to draw
Stretch or distorting stress under critical current test it is also possible to complete stretch, reverse combined stress under critical current test, and
Stretching and distorting stress can be conveniently adjusted, the test of its suitable for various size superconducting tape, and testing efficiency is high, in device
On be provided with sensor, be capable of accurate detection apply stress it is ensured that test accuracy.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of superconducting tape test device, including testboard and Dewar tank, wherein, testboard includes again:
Base；
Extension section, described extension section includes many first screw rods being erected on base and the cunning with the first screw flight cooperation
Plate；
Fixed part, described fixed part includes the lower clamping body being arranged on base and is rotatably arranged in the upper folder on slide plate
Tight body；
Torsional part, described torsional part includes being arranged on rotating disk above upper clamping body by many vertical rods,
It is filled with the liquid nitrogen for superconducting tape being cooled to superconducting state in Dewar tank.
2. superconducting tape test device according to claim 1, wherein, the material of described upper clamping body and lower clamping body is
Red copper.
3. superconducting tape test device according to claim 1, wherein, described Dewar tank is located at the lower section of testboard, Du
Crock passes through the second screw rod lifting.
4. superconducting tape test device according to claim 1, wherein, has scale on the excircle of rotating disk.
5. superconducting tape test device according to claim 1, wherein, extension section also has pulling force sensor.
6. superconducting tape test device according to claim 1, wherein, described first screw rod, the second screw rod are by motor
It is rotated.
7. a kind of superconducting tape method of testing, usage right requires the superconducting tape test device any one of 1 to 6, enters
Row following steps:
Using the two ends of upper clamping body and the fixing superconducting tape of lower clamping body, slide plate moves up along the first screw rod, applies suitably
Pretension it is ensured that band is in vertical state；
Extracted current lead and voltage lead；
Apply tension: slide plate moves up along the first screw rod, value of thrust is measured by pulling force sensor, reaches setting value of thrust
Tail skid stops；
Apply distorting stress: torsional part automatic or manual rotation, stop after reaching set angle；
After having applied tension and/or distorting stress, Dewar tank is moved upward to specified location along the second screw rod, by superconducting tape
It is cooled to below critical temperature, reach superconducting state；
Current source is energized to superconducting tape through current feed, is tested.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610673749.1A CN106371043B (en) | 2016-08-15 | 2016-08-15 | Superconducting tape test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610673749.1A CN106371043B (en) | 2016-08-15 | 2016-08-15 | Superconducting tape test device |
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| CN106371043A true CN106371043A (en) | 2017-02-01 |
| CN106371043B CN106371043B (en) | 2019-03-26 |
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Cited By (16)
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|---|---|---|---|---|
| CN107014266A (en) * | 2017-03-06 | 2017-08-04 | 中国科学院合肥物质科学研究院 | A kind of high accuracy suitable for high-temperature superconductor band application technology reverses miniature clamp structure |
| CN107144802A (en) * | 2017-05-10 | 2017-09-08 | 清华大学深圳研究生院 | A kind of method of the average critical current of quick measurement superconducting thin film |
| CN108254610A (en) * | 2018-01-15 | 2018-07-06 | 中国科学院合肥物质科学研究院 | For measuring test device of the high-temperature superconductor band in twisting states lower critical electric current |
| CN108254622A (en) * | 2017-12-06 | 2018-07-06 | 上海超导科技股份有限公司 | High-temperature superconductor band test device and test method |
| CN108594036A (en) * | 2018-03-29 | 2018-09-28 | 北京航天试验技术研究所 | A kind of connected vessels type test device for superconducting tape energizing test |
| CN108871951A (en) * | 2018-06-07 | 2018-11-23 | 兰州大学 | The stretch bending of superconducting tape turns round integrated loading device under a kind of low temperature and magnetic field |
| CN108957056A (en) * | 2018-09-13 | 2018-12-07 | 广东电网有限责任公司 | A kind of auxiliary device of superconducting tape tensile stress lower critical current measurement |
| CN110108755A (en) * | 2019-04-12 | 2019-08-09 | 国网江苏省电力有限公司经济技术研究院 | Superconducting tape pressurizes experiment mould under a kind of liquid environment |
| CN110261303A (en) * | 2019-07-26 | 2019-09-20 | 兰州大学 | A kind of superconducting tape transverse direction peel strength testing device and test method |
| CN110554214A (en) * | 2018-06-04 | 2019-12-10 | 西部超导材料科技股份有限公司 | Superconducting short sample turning angle critical current measurement sample rod |
| CN110703165A (en) * | 2019-10-08 | 2020-01-17 | 上海交通大学 | Device and method for testing turning diameter of superconducting strip |
| CN111679164A (en) * | 2020-06-11 | 2020-09-18 | 浙江大学 | Multi-angle visible superconducting strip impact frame |
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| CN113567267A (en) * | 2020-04-29 | 2021-10-29 | 中天集团上海超导技术有限公司 | Superconductive strip torsion experimental device |
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| CN114166741A (en) * | 2021-12-09 | 2022-03-11 | 上海超导科技股份有限公司 | Device and method for testing delamination stress of superconducting strip |
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| CN107014266A (en) * | 2017-03-06 | 2017-08-04 | 中国科学院合肥物质科学研究院 | A kind of high accuracy suitable for high-temperature superconductor band application technology reverses miniature clamp structure |
| CN107144802A (en) * | 2017-05-10 | 2017-09-08 | 清华大学深圳研究生院 | A kind of method of the average critical current of quick measurement superconducting thin film |
| CN108254622A (en) * | 2017-12-06 | 2018-07-06 | 上海超导科技股份有限公司 | High-temperature superconductor band test device and test method |
| CN108254610A (en) * | 2018-01-15 | 2018-07-06 | 中国科学院合肥物质科学研究院 | For measuring test device of the high-temperature superconductor band in twisting states lower critical electric current |
| CN108594036A (en) * | 2018-03-29 | 2018-09-28 | 北京航天试验技术研究所 | A kind of connected vessels type test device for superconducting tape energizing test |
| CN108594036B (en) * | 2018-03-29 | 2020-12-15 | 北京航天试验技术研究所 | Communicating vessel type testing device for superconducting strip electrification test |
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| CN108871951B (en) * | 2018-06-07 | 2024-02-27 | 兰州大学 | Stretch bending torsion comprehensive loading device for superconducting strip under low temperature and magnetic field |
| CN108871951A (en) * | 2018-06-07 | 2018-11-23 | 兰州大学 | The stretch bending of superconducting tape turns round integrated loading device under a kind of low temperature and magnetic field |
| CN108957056A (en) * | 2018-09-13 | 2018-12-07 | 广东电网有限责任公司 | A kind of auxiliary device of superconducting tape tensile stress lower critical current measurement |
| CN108957056B (en) * | 2018-09-13 | 2024-03-19 | 广东电网有限责任公司 | Auxiliary device for measuring critical current under tensile stress of superconducting strip |
| CN110108755A (en) * | 2019-04-12 | 2019-08-09 | 国网江苏省电力有限公司经济技术研究院 | Superconducting tape pressurizes experiment mould under a kind of liquid environment |
| CN110261303A (en) * | 2019-07-26 | 2019-09-20 | 兰州大学 | A kind of superconducting tape transverse direction peel strength testing device and test method |
| CN110703165A (en) * | 2019-10-08 | 2020-01-17 | 上海交通大学 | Device and method for testing turning diameter of superconducting strip |
| CN113567267A (en) * | 2020-04-29 | 2021-10-29 | 中天集团上海超导技术有限公司 | Superconductive strip torsion experimental device |
| CN111679164A (en) * | 2020-06-11 | 2020-09-18 | 浙江大学 | Multi-angle visible superconducting strip impact frame |
| CN113432980A (en) * | 2021-06-24 | 2021-09-24 | 国网上海市电力公司 | Method for testing tensile property of superconducting cable |
| CN113432980B (en) * | 2021-06-24 | 2024-03-22 | 国网上海市电力公司 | Testing method for tensile property of superconducting cable |
| CN114112647A (en) * | 2021-12-09 | 2022-03-01 | 上海超导科技股份有限公司 | Superconducting tape tensile stress testing device and testing method |
| CN114166741A (en) * | 2021-12-09 | 2022-03-11 | 上海超导科技股份有限公司 | Device and method for testing delamination stress of superconducting strip |
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