CN102788837A - Multifunctional critical-current uniformity non-destructive and continuous detection device of superconducting band material - Google Patents
Multifunctional critical-current uniformity non-destructive and continuous detection device of superconducting band material Download PDFInfo
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- CN102788837A CN102788837A CN2012102890456A CN201210289045A CN102788837A CN 102788837 A CN102788837 A CN 102788837A CN 2012102890456 A CN2012102890456 A CN 2012102890456A CN 201210289045 A CN201210289045 A CN 201210289045A CN 102788837 A CN102788837 A CN 102788837A
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Abstract
The invention discloses a multifunctional critical-current uniformity non-destructive and continuous detection device of a superconducting band material. The multifunctional critical-current uniformity non-destructive and continuous detection device is characterized in that a pay-off disc and a take-up disc are respectively arranged above the left upper part and the right upper part of an opened Dewar bottle which contains liquid nitrogen; the pay-off disc, the take-up disc and the Dewar bottle are respectively arranged in a sealing box; the Dewer bottle is internally provided with a guide wheel I, a guide wheel II, an excitation device, a magnetic-field measuring instrument and a guide wheel III in sequence from left to right; a height-adjustable top guide wheel is also arranged between the guide wheel I and the guide wheel II; an encoder is arranged above the left side of the guide wheel I or the right side of the guide wheel III of the Dewar bottle; and the excitation device, the magnetic-field measuring instrument, the encoder, a laser range finder I and a laser range finder II are respectively and electrically connected with a monitoring and controlling system. The multifunctional critical-current uniformity non-destructive and continuous detection device disclosed by the invention has the advantages that on the basis of testing the critical-current uniformity of the superconducting band material in a non-contact and continuous manner, the length of the band material also can be measured, the destructed position is accurately positioned, the change of the characteristic of the critical current of the band material can be tested when the tension and the bending degree are variable, and the destruction to the superconducting band material is less in testing.
Description
Technical field
The present invention relates to the harmless continuous detection apparatus of a kind of multi-functional superconduction belt material critical current homogeneity.
Background technology
Along with reaching its maturity of superconductor especially superconducting tape technology, it has obtained application more and more widely in industry.The current-carrying performance of the superconducting tape especially homogeneity of its critical current is to weigh an important engineering index of superconducting tape.The magnetic signal method of testing is that superconducting tape is passed magnetic field and measures its remnant field, can measure the homogeneity of superconduction belt material critical current through the homogeneity of remnant field.The characteristic (homogeneity) of the critical current of the test superconducting tape that it is can be non-contacting continuous is to test the main stream approach that the superconduction belt material critical current characteristic is adopted at present in the world.
But the superconduction belt material critical current homogeneity continuous detection apparatus that existing magnetic signal method of testing is adopted is made up of draw drum, stepper motor driven take-up reel, excitation unit and magnetic field measuring device.The problem that exists is: 1, adopt tension controller control tension force, it requires less cornerite, and superconducting tape causes the reduction of performance easily because bending radius is too small.2, proving installation can't be realized the measurement of band length and the accurate location of damage (critical current diminishes amplitude greater than specialized range) position.When 3, the band of draw drum had been put, proving installation can not in time be shut down, and the band that makes the draw drum end is owing to overtension causes damage.4, function singleness can not be tested the variation of band critical current properties when becoming tension force with degree of buckling situation.
Summary of the invention
The object of the invention just provides the harmless continuous detection apparatus of a kind of multi-functional superconduction belt material critical current homogeneity; This device goes out on the basis of superconducting tape critical current uniformity at noncontact, follow-on test; Can also accurately locate to the length of measurement band and to its damage position, and can test the variation of band critical current properties when becoming tension force with degree of buckling situation; And it is little during test to the superconducting tape damage.
The technical scheme that is adopted that the present invention solves its technical matters is that a kind of multi-functional superconduction belt material critical current homogeneity can't harm continuous detection apparatus, comprises draw drum, stepper motor driven take-up reel, it is characterized in that:
Described draw drum, take-up reel are installed in the upper left side and the upper right side of uncovered Dewar flask respectively, fill liquid nitrogen in the Dewar flask; Draw drum, take-up reel and Dewar flask all are located in seal box;
Seal box is provided with air intake opening and gas outlet; The sealing tank wall in draw drum left side is provided with airborne laser range finder one, and the sealing tank wall on take-up reel right side is provided with airborne laser range finder two;
From left to right, guide wheel one, guide wheel two, excitation unit, magnetic field measuring apparatus, guide wheel three are installed successively in the Dewar flask; An adjustable for height top guide wheel also is installed between guide wheel one, guide wheel two; Above the Dewar flask on guide wheel one left side or guide wheel three right sides, be provided with scrambler;
Excitation unit, magnetic field measuring apparatus, scrambler, airborne laser range finder one and airborne laser range finder two all are electrically connected with monitoring and control system.
The course of work of the present invention and principle are following:
Superconducting tape between draw drum and the take-up reel is passed through scrambler, guide wheel one, top guide wheel, guide wheel two, excitation unit, magnetic field measuring apparatus, guide wheel three successively; Owing to fill liquid nitrogen in the Dewar flask; Superconducting tape between guide wheel one and the guide wheel three is in below the superconduction critical temperature, and gets into superconducting state; During test, monitoring and control system start stepper motor, drive the take-up reel rotation, and superconducting wire is emitted from draw drum uniformly, and around to take-up reel; In this process; Superconducting wire passes through excitation unit uniformly; By the magnetizes of excitation unit generation; When superconducting tape passes through magnetic field measuring apparatus, measure its remnant field intensity by the magnetic field measuring apparatus continuous uninterrupted, the homogeneity of each several part remnant field is the homogeneity of each several part critical current also just; Simultaneously, accurately measure the superconducting tape length that flows through by scrambler; Airborne laser range finder two on airborne laser range finder one on the sealing tank wall in draw drum left side, the sealing tank wall on take-up reel right side; Accurately measure the thickness of strip on draw drum and the take-up reel respectively; Measure thickness of strip on the draw drum when airborne laser range finder one and equal 0 or airborne laser range finder two when measuring thickness of strip on the take-up reel and reaching setting; Monitoring and control system control step motor stall immediately, whole testing device quits work.
Compared with prior art, the invention has the beneficial effects as follows:
One, measures the remnant field intensity of superconducting tape each several part by the magnetic field measuring apparatus continuous uninterrupted, and then measure the homogeneity of the critical current of its each several part; Simultaneously, the scrambler above liquid helium Dewar carries out measuring synchronously accurately to band length, both can measure the length of band, more can realize the band critical current accurate location of value above the damage position of specialized range that diminish.
Two, in real time the band on draw drum and the take-up reel is monitored by airborne laser range finder one, two, when the band on the draw drum has been put, the stepper motor auto stop; When having avoided band to put, stepper motor still rotates and causes band to bear hightension and the problem damaged.
Three, through regulating the height of adjustable for height top guide wheel; The last wheel rim of top guide wheel and the relative altitude position between guide wheel one, two lower rim are changed; And realize adjusting, thereby realize the uniformity test of the superconduction belt material critical current under differently curved degree and the tension force condition, its test function variation to band flexibility and tension force; Adaptability is stronger, is convenient to analyze the influence of band changes of microstructure to the band critical current.
Four, all parts of the present invention and superconducting tape all are placed in the seal box; Feed drying nitrogen from air intake opening and include the air of aqueous vapor, and discharge, in the operational process from the gas outlet with displacement apparatus; The nitrogen that liquid nitrogen evaporates can be discharged through the gas outlet; Effectively remove steam in the case, avoid superconducting tape to freeze, influence its performance even damage.Owing to do not need to establish in addition dehumidifying and heater element, make that the structure of apparatus of the present invention is more simple simultaneously.
The axle of above-mentioned draw drum links to each other with damper.
Like this, through regulating the damping size of damper, the tension force in the time of can changing the band test, thereby the homogeneity of the critical current of test band under the differential tension condition.
Through accompanying drawing and embodiment the present invention is done further explain below.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Embodiment
Fig. 1 illustrates, and a kind of embodiment of the present invention is: a kind of multi-functional superconduction belt material critical current homogeneity can't harm continuous detection apparatus, comprises the take-up reel 13 that draw drum 1, stepper motor 16 drive, and it is characterized in that:
Described draw drum 1, take-up reel 13 are installed in the upper left side and the upper right side of uncovered Dewar flask 4 respectively, fill liquid nitrogen in the Dewar flask 4; Draw drum 1, take-up reel 13 and Dewar flask 4 all are located in seal box 15;
Seal box is provided with air intake opening 6 and gas outlet 12; Seal box 15 walls in draw drum 1 left side are provided with airborne laser range finder 1, and seal box 15 walls on take-up reel 13 right sides are provided with airborne laser range finder 2 14;
From left to right, guide wheel 1, guide wheel 28, excitation unit 9, magnetic field measuring apparatus 10, guide wheel 3 11 are installed successively in the Dewar flask 4; An adjustable for height top guide wheel 7 also is installed between guide wheel 1, guide wheel 28; Above the Dewar flask 4 on guide wheel one 5 left sides or guide wheel 3 11 right sides, be provided with scrambler 3;
The axle of the draw drum 1 of present embodiment links to each other with damper 17.
Claims (2)
1. the harmless continuous detection apparatus of multi-functional superconduction belt material critical current homogeneity comprises the take-up reel (13) that draw drum (1), stepper motor (16) drive, and it is characterized in that:
Described draw drum (1), take-up reel (13) are installed in the upper left side and the upper right side of uncovered Dewar flask (4) respectively, and Dewar flask fills liquid nitrogen in (4); Draw drum (1), take-up reel (13) and Dewar flask (4) all are located in seal box (15);
Seal box is provided with air intake opening (6) and gas outlet (12); Seal box (15) wall in draw drum (1) left side is provided with airborne laser range finder one (2), and seal box (15) wall on take-up reel (13) right side is provided with airborne laser range finder two (14);
From left to right, guide wheel one (5), guide wheel two (8), excitation unit (9), magnetic field measuring apparatus (10), guide wheel three (11) are installed successively in the Dewar flask (4); Between guide wheel one (5), guide wheel two (8), an adjustable for height top guide wheel (7) is installed also; Dewar flask (4) top on guide wheel one (5) left side or guide wheel three (11) right sides is provided with scrambler (3);
Excitation unit (9), magnetic field measuring apparatus (10), scrambler (3), airborne laser range finder one (2) and airborne laser range finder two (14) all are electrically connected with monitoring and control system.
2. a kind of multi-functional superconduction belt material critical current homogeneity according to claim 1 can't harm continuous detection apparatus, it is characterized in that: the axle of described draw drum (1) links to each other with damper (17).
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| CN201210289045.6A CN102788837B (en) | 2012-08-15 | 2012-08-15 | Multifunctional critical-current uniformity non-destructive and continuous detection device of superconducting band material |
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| CN201210289045.6A CN102788837B (en) | 2012-08-15 | 2012-08-15 | Multifunctional critical-current uniformity non-destructive and continuous detection device of superconducting band material |
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| CN102788837A true CN102788837A (en) | 2012-11-21 |
| CN102788837B CN102788837B (en) | 2015-05-20 |
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| CN104914331A (en) * | 2015-05-25 | 2015-09-16 | 中国科学院合肥物质科学研究院 | Measurement apparatus and measurement method for critical current and n value index of high-temperature superconductive tape |
| CN105067790A (en) * | 2015-08-05 | 2015-11-18 | 西部超导材料科技股份有限公司 | On-line test device and test method of superconductive wire rod Cu/Sc |
| CN105067677A (en) * | 2015-08-05 | 2015-11-18 | 西部超导材料科技股份有限公司 | Superconductive wire rod Cu/Sc test device |
| CN107144720A (en) * | 2017-05-11 | 2017-09-08 | 西南交通大学 | High-temperature superconductor band critical current test device and its method of testing under cyclic loading |
| CN107167750A (en) * | 2017-05-25 | 2017-09-15 | 西南交通大学 | Superconducting wire critical current test device and method of testing under a kind of hybrid stress |
| CN107167681A (en) * | 2017-05-10 | 2017-09-15 | 西南交通大学 | The current-carring characteristic test device and method of testing of a kind of high-temperature superconductor band |
| CN107505493A (en) * | 2016-11-04 | 2017-12-22 | 洛阳理工学院 | A kind of controllable superconduction belt material critical current measuring device of tension force |
| CN108279267A (en) * | 2018-02-11 | 2018-07-13 | 西南交通大学 | The continuous non-destructive testing device of Cable-in-conduit conductor local defect |
| CN109580681A (en) * | 2019-01-16 | 2019-04-05 | 上海上创超导科技有限公司 | Conductor of high-temperature superconductor coat serialization dynamic XRD diffraction device and detection 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 |
| CN114184399A (en) * | 2021-12-09 | 2022-03-15 | 上海超导科技股份有限公司 | Device and method for testing turning diameter of reel-to-reel superconducting strip |
| CN114200236A (en) * | 2021-12-10 | 2022-03-18 | 国网上海市电力公司 | Performance uniformity testing device suitable for superconducting power cable |
| CN114252348A (en) * | 2021-12-28 | 2022-03-29 | 东部超导科技（苏州）有限公司 | Repeated bending fatigue resistance experiment method for superconducting strip |
| CN114280514A (en) * | 2021-12-30 | 2022-04-05 | 东部超导科技（苏州）有限公司 | Method and device for quickly positioning critical current low point of superconducting strip |
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Cited By (21)
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| CN104914331A (en) * | 2015-05-25 | 2015-09-16 | 中国科学院合肥物质科学研究院 | Measurement apparatus and measurement method for critical current and n value index of high-temperature superconductive tape |
| CN105067677B (en) * | 2015-08-05 | 2019-03-19 | 西部超导材料科技股份有限公司 | A kind of superconducting wire copper hypergeometric test equipment |
| CN105067677A (en) * | 2015-08-05 | 2015-11-18 | 西部超导材料科技股份有限公司 | Superconductive wire rod Cu/Sc test device |
| CN105067790B (en) * | 2015-08-05 | 2017-09-29 | 西部超导材料科技股份有限公司 | A kind of superconducting wire copper hypergeometric on-line testing equipment and its method of testing |
| CN105067790A (en) * | 2015-08-05 | 2015-11-18 | 西部超导材料科技股份有限公司 | On-line test device and test method of superconductive wire rod Cu/Sc |
| CN107505493A (en) * | 2016-11-04 | 2017-12-22 | 洛阳理工学院 | A kind of controllable superconduction belt material critical current measuring device of tension force |
| CN107505493B (en) * | 2016-11-04 | 2023-09-26 | 洛阳理工学院 | Tension-controllable superconducting strip critical current measuring device |
| CN107167681A (en) * | 2017-05-10 | 2017-09-15 | 西南交通大学 | The current-carring characteristic test device and method of testing of a kind of high-temperature superconductor band |
| CN107167681B (en) * | 2017-05-10 | 2023-05-05 | 西南交通大学 | Current-carrying characteristic testing device and method for high-temperature superconducting strip |
| CN107144720A (en) * | 2017-05-11 | 2017-09-08 | 西南交通大学 | High-temperature superconductor band critical current test device and its method of testing under cyclic loading |
| CN107167750A (en) * | 2017-05-25 | 2017-09-15 | 西南交通大学 | Superconducting wire critical current test device and method of testing under a kind of hybrid stress |
| CN107167750B (en) * | 2017-05-25 | 2023-08-04 | 西南交通大学 | Superconducting wire critical current testing device and testing method under mixed stress |
| CN108279267A (en) * | 2018-02-11 | 2018-07-13 | 西南交通大学 | The continuous non-destructive testing device of Cable-in-conduit conductor local defect |
| CN109580681A (en) * | 2019-01-16 | 2019-04-05 | 上海上创超导科技有限公司 | Conductor of high-temperature superconductor coat serialization dynamic XRD diffraction device and detection method |
| CN110703165B (en) * | 2019-10-08 | 2020-09-04 | 上海交通大学 | Device and method for testing turning diameter of superconducting strip |
| CN110703165A (en) * | 2019-10-08 | 2020-01-17 | 上海交通大学 | Device and method for testing turning diameter of superconducting strip |
| CN114184399B (en) * | 2021-12-09 | 2022-11-18 | 上海超导科技股份有限公司 | Device and method for testing turning diameter of reel-to-reel superconducting strip |
| CN114184399A (en) * | 2021-12-09 | 2022-03-15 | 上海超导科技股份有限公司 | Device and method for testing turning diameter of reel-to-reel superconducting strip |
| CN114200236A (en) * | 2021-12-10 | 2022-03-18 | 国网上海市电力公司 | Performance uniformity testing device suitable for superconducting power cable |
| CN114252348A (en) * | 2021-12-28 | 2022-03-29 | 东部超导科技（苏州）有限公司 | Repeated bending fatigue resistance experiment method for superconducting strip |
| CN114280514A (en) * | 2021-12-30 | 2022-04-05 | 东部超导科技（苏州）有限公司 | Method and device for quickly positioning critical current low point of superconducting strip |
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