CN1299967A - High-temperature superconductive magnetic levitation testing technology - Google Patents
High-temperature superconductive magnetic levitation testing technology Download PDFInfo
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- CN1299967A CN1299967A CN 99117455 CN99117455A CN1299967A CN 1299967 A CN1299967 A CN 1299967A CN 99117455 CN99117455 CN 99117455 CN 99117455 A CN99117455 A CN 99117455A CN 1299967 A CN1299967 A CN 1299967A
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Abstract
The present invention provides a high-temp. superconducting magnetic suspension test technology, belonging to the field of superconducting electric technology. It is characterized by that the liquid nitrogen low-temp. container is positioned over the permanent magnet track magnetic field, said liquid nitrogen low-temp. container is a flat-bottom liquid nitrogen low-temp. container whose bottom thickness is 3.5 mm, and can ensure that between high-temp. supercoducting block material and magnetic track surface there is 4.0 mm distance to make measurement, and can measure total magnetic suspension force of 70 blocks, of high-temp. superconducting blocks. The magnetic induction strength of concentrated permanent magnet track can be up to 1.2T. It is mainly used for experimental research of high-temp. superconducting magnetic suspension.
Description
The present invention relates to the superconduction electrical technology field.
The research of high-temperature superconducting maglev train also is in the starting state, and the research of carrying out mostly is about the research of high-temperature superconductor bulk itself and for improving the research of the magnetic suspension force that material property carries out single bulk.For the applied research on high-temperature superconducting maglev train, because the restriction of experimental study means also has a lot of problems not study.So far also there is not a kind of measuring technology that can simulate high temperature superconductor magnetic levitation vehicle.Existing high-temperature superconductive magnetic levitation testing technology of past be the high-temperature superconductor bulk below, permanent magnet is in the above.Such layout is in order to use a simple and easy liquid nitrogen container (generally being non-Dewar type container) to deposit liquid nitrogen, to finish monolithic high-temperature superconductor block magnetic suspension force measurement.This layout be not suitable for the high-temperature superconductor bulk last and permanent magnet railway under the high temperature superconductor magnetic levitation vehicle practical situations, its test result can not satisfy the needs of high temperature superconductor magnetic levitation vehicle research and development.The bottom of existing liquid nitrogen vessel of past (Dewar type container) is thicker, can not satisfy the needs of the close-in measurement between high-temperature superconductor bulk and the track magnetic field, also just can not satisfy the requirement of high-temperature superconductor bulk experimental study above permanent magnet railway.The high-temperature superconducting magnetic levitation test macro in past is a monolithic high-temperature superconductor block magnetic suspension force measurement, and magnetic suspension force that can only the measuring vertical direction.The magnetic field of the high-temperature superconducting magnetic levitation test macro in past is to be provided by common NdFeB, and magnetic induction density is generally less than 0.5T, can not simulate the measurement of high temperature superconductor magnetic levitation vehicle suspension property on the magnetic orbital.Past high-temperature superconductive magnetic levitation testing technology automatic measurement degree is low.
The purpose of this invention is to provide a kind of high-temperature superconductive magnetic levitation testing technology, it can carry out quick real-time automatic measuring monolithic or polylith high-temperature superconductor block magnetic suspension performance effectively.
Purpose of the present invention can be realized by following technical proposal:
The magnetic levitation performance of measuring monolithic or polylith high-temperature superconductor bulk fast in real time realizes with the general NC technology.For realizing the test request of system, utilize two Shaft and NC Machining Test gearshifts, sensing technology, industrial computer data acquisition and processing (DAP) system, industrial computer is controlled automatically and system software is formed.Two Shaft and NC Machining Test gearshifts have a box support and are installed in guide rail and ball screw assembly, on the box support, drive and provide power by stepper motor or servomotor.Vertical direction and horizontal direction top offset amount are provided synchronously by stepper motor and servomotor.Two force sensor measuring mechanical quantities, temperature and magnetic field are measured by temperature sensor and hall generator respectively.Data acquisition and processing (DAP), motor are controlled automatically by industrial computer and system software support thereof.Realize all automatic measurement and control by industrial computer (data collecting card and motor control card, multifunction card) and system software to system.Adopt graphic user interface, the user can directly operate on computers.
In order to realize liquid nitrogen vessel above permanent magnet railway, the present invention adopts the liquid nitrogen vessel of the thin end (Dewar type container) that can place the high-temperature superconductor bulk, has solved the high-temperature superconductor bulk is placed problem on the permanent magnet.Its test result can be directly used in the high temperature superconductor magnetic levitation vehicle research and development.The present invention adopts special liquid nitrogen vessel of the thin end, realizes close-in measurement between high-temperature superconductor bulk and the track magnetic field with this, and guarantees the needs that test result more gears to actual circumstances and uses.The bottom of existing general liquid nitrogen vessel (Dewar type container) is all thicker, and mostly is circular base, can not satisfy the needs of the close-in measurement between high-temperature superconductor bulk and the track magnetic field.The present invention adopts the only flat liquid nitrogen vessel of 3.5mm base thickness, guarantees the 4.0mm close-in measurement between high-temperature superconductor bulk and the magnetic orbital face, and the measurement result of the spacing of this 4.0mm can satisfy the needs of high temperature superconductor magnetic levitation vehicle research and development fully.The present invention adopts the flat liquid nitrogen vessel of large scale, the overall magnetic suspension force of 70 high-temperature superconductor bulks of energy measurement.The concentration-type magnetic orbital that employing of the present invention and high-temperature superconducting maglev train practical application are similar, magnetic induction density reaches 1.2T, and its measurement result can effectively guarantee the actual needs of high-temperature superconducting maglev train research and development.
Liquid nitrogen vessel is suspended on the cantilever of box support, permanent magnet railway is fixed on the base of box support, tested high-temperature superconductor is fixed in the liquid nitrogen vessel, one surface and liquid nitrogen vessel bottom interior wall are close to, make the bottom surface of liquid nitrogen vessel and the upper surface keeping parallelism of permanent magnet railway, and both center line projections keep overlapping.Liquid nitrogen vessel is suspended on the cantilever of box support by fastening frame and vertical force sensor.Two horizontal guide rails are arranged on the base of box support, and permanent magnet railway is fixed on the base of box support by these two horizontal guide rails, is fixed between locating support on the base of box support and the permanent magnet railway to be connected by the horizontal force sensor.
The present invention compared with prior art has following effect and advantage:
Adopted the liquid nitrogen vessel of the thin end (Dewar type container) that to place the high-temperature superconductor bulk, solved the high-temperature superconductor bulk is placed problem on the permanent magnet.Its test result can be directly used in the high temperature superconductor magnetic levitation vehicle research and development.This liquid nitrogen vessel bottom thickness is 3.5mm, guarantees the 4.0mm close-in measurement between high-temperature superconductor bulk and the magnetic orbital face, and the measurement result of the spacing of this 4.0mm can satisfy the needs of high temperature superconductor magnetic levitation vehicle research and development fully.Magnetic suspension force that can the measuring vertical direction, the energy measurement horizontal direction plays the guiding force of stabilization again, again the overall magnetic suspension force and the guiding force of energy measurement polylith (for example 70) high-temperature superconductor bulk.Adopt and the similar concentration-type magnetic orbital of high-temperature superconducting maglev train practical application, magnetic induction density reaches 1.2T.
Description of drawings of the present invention is as follows:
Fig. 1 is a test principle front elevation of the present invention
Fig. 2 is a test principle right view of the present invention
Embodiments of the invention are as follows:
Be fixed between locating support 10 on the base 5 and the permanent magnet railway 4 and connect with horizontal force transducer 9, permanent magnet railway 4 with respect to liquid nitrogen vessel of the thin end 2 when horizontal force sensor 9 directions move horizontally, measure the numerical value of power by horizontal force sensor 9, determine that by the displacement that moves horizontally the inside is placed with the liquid nitrogen vessel 2 of the thin end of tested high-temperature superconductor bulk 3 and the variation distance between the permanent magnet railway 4.Draw the size of horizontal force and the relation curve of horizontal displacement thus, this is the sign of high-temperature superconductor bulk 3 guiding force on permanent magnet railway 4.
Claims (3)
1. high-temperature superconductive magnetic levitation testing technology, mainly utilize two Shaft and NC Machining Test gearshifts, sensing technology, the data acquisition and processing (DAP) system, industrial computer is control and system software composition thereof automatically, two Shaft and NC Machining Test gearshifts are box supports (6) and are installed in guide rail and ball screw assembly, on the box support (6), driving provides power by stepper motor or servomotor, two force transducers (8) and sensor (9) are measured mechanical quantity, temperature and magnetic field are measured by temperature sensor and hall generator respectively, data acquisition and processing (DAP), motor is controlled automatically by industrial computer and system software support thereof, it is characterized in that liquid nitrogen vessel (2) is suspended on the cantilever (7) of box support (6), permanent magnet railway (4) is fixed on the base (5) of box support (6), tested high-temperature superconductor is fixed on liquid nitrogen vessel (2) inside, the bottom interior wall of one surface and liquid nitrogen vessel (2) is close to, make the bottom surface of liquid nitrogen vessel (2) and the upper surface keeping parallelism of permanent magnet railway (4), and both center line projections keep overlapping.
2. high-temperature superconductive magnetic levitation testing technology according to claim 1 is characterized in that bottom thickness is that the liquid nitrogen vessel (2) of 3.5mm is suspended on the cantilever (7) of box support (6) by fastening frame (1) and vertical force sensor (8).
3. high-temperature superconductive magnetic levitation testing technology according to claim 1, it is characterized in that on the base (5) of box support (6) two horizontal guide rails being arranged, permanent magnet railway (4) is fixed on the base (5) of box support (6) by these two horizontal guide rails, is fixed between locating support (10) on the base (5) of box support (6) and the permanent magnet railway (4) to be connected by horizontal force sensor (9).
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CNB991174550A CN1141560C (en) | 1999-12-16 | 1999-12-16 | High-temperature superconductive magnetic levitation testing technology |
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CNB991174550A CN1141560C (en) | 1999-12-16 | 1999-12-16 | High-temperature superconductive magnetic levitation testing technology |
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CN1299967A true CN1299967A (en) | 2001-06-20 |
CN1141560C CN1141560C (en) | 2004-03-10 |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
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CN100445713C (en) * | 2006-11-20 | 2008-12-24 | 西南交通大学 | Testing apparatus for high temperature, superconducting, magnetic suspension and dynamic performance and testing method with the same |
CN101814871A (en) * | 2010-04-12 | 2010-08-25 | 西南交通大学 | Direct-current static and dynamic symmetric/asymmetric magnetic field generating device |
CN102854478A (en) * | 2012-09-03 | 2013-01-02 | 西南交通大学 | Device for testing magnetic suspension characteristic of single high-temperature superconductor |
CN103499425A (en) * | 2013-10-08 | 2014-01-08 | 周军 | High-temperature superconductive maglev transverse dynamic test observation and analysis system |
CN103900739A (en) * | 2012-12-28 | 2014-07-02 | 北京有色金属研究总院 | Device and method for measuring large-grain block high-temperature superconductor and combination magnetic buoyancy of large-grain block high-temperature superconductor |
CN104886924A (en) * | 2015-06-12 | 2015-09-09 | 洛阳理工学院 | Passive high-temperature superconducting magnetic levitation rotating dining-table |
CN105150875A (en) * | 2015-09-28 | 2015-12-16 | 西南交通大学 | High-temperature superconducting maglev vehicle high in curve negotiation performance |
CN105300567A (en) * | 2015-09-23 | 2016-02-03 | 西南交通大学 | High-gradient high-intensity magnetic field magnetic suspension characteristic test technology |
CN107525736A (en) * | 2016-09-18 | 2017-12-29 | 浙江大学 | A kind of single-block annular magnet magnetic suspension detection method for detection density |
CN109682951A (en) * | 2019-02-20 | 2019-04-26 | 中国水利水电科学研究院 | A kind of magnetic suspension centrifuge |
CN109987116A (en) * | 2019-04-13 | 2019-07-09 | 西南交通大学 | A kind of high-temperature superconducting magnetic levitation track checking car |
CN110044260A (en) * | 2019-04-13 | 2019-07-23 | 西南交通大学 | A kind of tracks of permanent magnetism irregularity detection device |
CN110658483A (en) * | 2019-11-05 | 2020-01-07 | 西南交通大学 | Device and method for testing interaction force of high-temperature superconductor and permanent magnet |
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 |
CN114013695A (en) * | 2021-12-07 | 2022-02-08 | 北京航空航天大学 | Inferior mN level superconductive plane suspension type vacuum attitude and orbit control test system |
-
1999
- 1999-12-16 CN CNB991174550A patent/CN1141560C/en not_active Expired - Fee Related
Cited By (22)
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CN100445713C (en) * | 2006-11-20 | 2008-12-24 | 西南交通大学 | Testing apparatus for high temperature, superconducting, magnetic suspension and dynamic performance and testing method with the same |
CN101814871A (en) * | 2010-04-12 | 2010-08-25 | 西南交通大学 | Direct-current static and dynamic symmetric/asymmetric magnetic field generating device |
CN101814871B (en) * | 2010-04-12 | 2011-09-21 | 西南交通大学 | Direct-current static and dynamic symmetric/asymmetric magnetic field generating device |
CN102854478A (en) * | 2012-09-03 | 2013-01-02 | 西南交通大学 | Device for testing magnetic suspension characteristic of single high-temperature superconductor |
CN102854478B (en) * | 2012-09-03 | 2015-05-20 | 西南交通大学 | Device for testing magnetic suspension characteristic of single high-temperature superconductor |
CN103900739A (en) * | 2012-12-28 | 2014-07-02 | 北京有色金属研究总院 | Device and method for measuring large-grain block high-temperature superconductor and combination magnetic buoyancy of large-grain block high-temperature superconductor |
CN103499425A (en) * | 2013-10-08 | 2014-01-08 | 周军 | High-temperature superconductive maglev transverse dynamic test observation and analysis system |
CN104886924A (en) * | 2015-06-12 | 2015-09-09 | 洛阳理工学院 | Passive high-temperature superconducting magnetic levitation rotating dining-table |
CN105300567A (en) * | 2015-09-23 | 2016-02-03 | 西南交通大学 | High-gradient high-intensity magnetic field magnetic suspension characteristic test technology |
CN105150875B (en) * | 2015-09-28 | 2017-10-24 | 西南交通大学 | A kind of strong high Temperature Superconducting MAGLEV of curve negotiation ability |
CN105150875A (en) * | 2015-09-28 | 2015-12-16 | 西南交通大学 | High-temperature superconducting maglev vehicle high in curve negotiation performance |
CN107525736A (en) * | 2016-09-18 | 2017-12-29 | 浙江大学 | A kind of single-block annular magnet magnetic suspension detection method for detection density |
CN109682951A (en) * | 2019-02-20 | 2019-04-26 | 中国水利水电科学研究院 | A kind of magnetic suspension centrifuge |
CN109682951B (en) * | 2019-02-20 | 2023-09-19 | 中国水利水电科学研究院 | Magnetic suspension centrifuge |
CN109987116A (en) * | 2019-04-13 | 2019-07-09 | 西南交通大学 | A kind of high-temperature superconducting magnetic levitation track checking car |
CN110044260A (en) * | 2019-04-13 | 2019-07-23 | 西南交通大学 | A kind of tracks of permanent magnetism irregularity detection device |
CN109987116B (en) * | 2019-04-13 | 2024-04-02 | 西南交通大学 | High-temperature superconductive magnetic levitation track inspection vehicle |
CN110044260B (en) * | 2019-04-13 | 2024-04-02 | 西南交通大学 | Permanent magnet track irregularity detection equipment |
CN110658483A (en) * | 2019-11-05 | 2020-01-07 | 西南交通大学 | Device and method for testing interaction force of high-temperature superconductor and permanent magnet |
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 |
CN114013695A (en) * | 2021-12-07 | 2022-02-08 | 北京航空航天大学 | Inferior mN level superconductive plane suspension type vacuum attitude and orbit control test system |
CN114013695B (en) * | 2021-12-07 | 2024-05-24 | 北京航空航天大学 | Sub-mN-level superconducting plane suspension type vacuum attitude and orbit control test system |
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