CN2045525U - Demonstrator for superconductor magnetic suspension - Google Patents
Demonstrator for superconductor magnetic suspension Download PDFInfo
- Publication number
- CN2045525U CN2045525U CN 89206027 CN89206027U CN2045525U CN 2045525 U CN2045525 U CN 2045525U CN 89206027 CN89206027 CN 89206027 CN 89206027 U CN89206027 U CN 89206027U CN 2045525 U CN2045525 U CN 2045525U
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- CN
- China
- Prior art keywords
- superconductor
- demonstrator
- diameter
- magnetic suspension
- liquid nitrogen
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Abstract
The utility model discloses a demonstrator for superconductor magnetic suspension belonging to the superconducting technical field. The device comprises a dewar cylinder, an oxide superconductor whose inner diameter is identical with the inner diameter of the dewar cylinder, a ferromagnetic body whose diameter is smaller than the diameter of the oxide superconductor, and liquid nitrogen. The visualizability of the utility model mode is strong and the demonstrator for superconductor magnetic suspension is particularly served as the teaching tools of the colleges and the secondary schools.
Description
The utility model belongs to the superconductor technology field, is particularly suitable as university, and the educational aid of the Meissner effect of superconductor is lectured in the middle school.
Super-conductive magnetic suspension experiment before the utility model is that a little permanent magnet is placed the superconductor near surface.Under the liquid helium condition, " Superconductor Physics " P.12 magnet is suspended on the certain height of superconductor surface (referring to document:, Electronic Industry Press 1987), after high Tc oxide Ba-Y-Cu-O super conductor research success, can under the liquid nitrogen condition, observe the magnetic levitation phenomenon of superconductor, bring following shortcoming during observation: one, the suspension magnet position is difficult for stable, easily slide to superconductor with external position, just fall; Its two, use glass container, beaker for example because cooled with liquid nitrogen and frosting is opaque, though can be from top observation, the experimental demonstration effect is bad.Its three, oxide superconductor is afraid of moistly to meet water or steam and damage supraconductivity.(referring to document: R.L.Barns et.al., Appl. Phys. Lett., V 51(1987) 1373)
The utility model purpose is to propose the strong superconductor magentic suspension demonstrating device of a kind of intuitive, and it can bring the stable magnetic levitation phenomenon of long-term use, and will avoid the problem of making troubles and observing because of the cooled with liquid nitrogen frosting.
Accompanying drawings content of the present utility model.Accompanying drawing is the cut-open view of super-conductive magnetic suspension apparatus for demonstrating.By dewar tube (1), oxide superconductor (2), kicker magnet (3), liquid nitrogen (4) are formed.For the ease of observing, transparent dewar tube (1) container that adopts glass to make is stablized in order to make the magnetic levitation phenomenon.Put into and the corresponding to high Tc oxide superconductor sheet of dewar tube internal diameter (2) in dewar tube (1) bottom, put into the permanent kicker magnet sheet (3) of diameter again less than the oxide superconductor sheet, the liquid nitrogen (4) of packing at last, just can be observed the magnetic levitation phenomenon, also can put into earlier and the corresponding to permanent kicker magnet sheet of dewar tube internal diameter (3) in the dewar tube bottom, put into superconductor sheet (2) again, can observe the magnetic levitation phenomenon equally.For the moistureproof problem and the durable life-span of raising that solve oxide superconductor plate with rust-preventing film external being coated with polymer protective film with outside kicker magnet of oxide superconducting.
The utility model characteristics are transparent dewar tubes made from glass, can be incubated, again can be heat insulation, and be beneficial to liquid nitrogen again and preserve, not in glass outside frosting, make things convenient for hand to take again, be convenient to demonstration, small and exquisite, the magnetic levitation phenomenon is stable, can supply university, and the relevant scientific research department with other of physics teaching in secondary school uses.
Embodiment 1:
Making transparent dewar tube internal diameter with glass material is 20mm, high 100-120mm.Use Ba
2YCu
3O
7Superconductor is made the superconductive pellet that diameter is the thick 5mm of 19mm; be coated with outward with the macromolecule moisture-proof protective film; put bottom with neodymium iron boron make diameter less than the plating of the ferromagnetic material of the thick 3mm of 15mm with rust-preventing film, be placed on above the superconductor sheet, be dipped in the suspension that can realize magnet in the liquid nitrogen again.
Embodiment 2:
Making diameter with neodymium iron boron is 19mm, the kicker magnet sheet of thick about 5mm, and plating is placed on the dewar tube bottom with rust-preventing film, uses Ba
2YCu
3O
7Superconductor is made the superconductor of diameter less than the thick 5mm of 18mm, is coated with outward with macromolecule moisture proof diaphragm, is placed on above the ferromagnetic material, and putting into diameter is the glass dewar tube of the high 100-120mm of 20mm, injects liquid hammer and realizes the magnetic levitation phenomenon.
Claims (2)
1, a kind of superconductor magentic suspension demonstrating device, by container, superconductor, magnet and liquid nitrogen are formed.It is characterized in that in transparent dewar tube (1) container by glass, put into high Tc oxide superconductor sheet (2) and kicker magnet sheet (3), one of them is consistent with the dewar tube internal diameter, and another diameter injects the magnetic levitation system that liquid nitrogen (4) is formed less than the dewar tube internal diameter.
2, device according to claim 1 is characterized in that being coated with outside high Tc oxide superconductor with polymer protective film, solves its moistureproof problem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89206027 CN2045525U (en) | 1989-04-27 | 1989-04-27 | Demonstrator for superconductor magnetic suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89206027 CN2045525U (en) | 1989-04-27 | 1989-04-27 | Demonstrator for superconductor magnetic suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2045525U true CN2045525U (en) | 1989-10-04 |
Family
ID=4863157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89206027 Expired - Lifetime CN2045525U (en) | 1989-04-27 | 1989-04-27 | Demonstrator for superconductor magnetic suspension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2045525U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723025A (en) * | 2012-05-04 | 2012-10-10 | 北京英纳超导技术有限公司 | Teaching instrument for demonstrating superconducting characteristic |
| CN108806402A (en) * | 2018-06-09 | 2018-11-13 | 郭耀普 | The magnetic suspension demonstrating apparatus and preparation method thereof of one organic molecular species |
| TWI715701B (en) * | 2016-12-29 | 2021-01-11 | 閆立中 | Aerial display system and floating pixel unit thereof |
-
1989
- 1989-04-27 CN CN 89206027 patent/CN2045525U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723025A (en) * | 2012-05-04 | 2012-10-10 | 北京英纳超导技术有限公司 | Teaching instrument for demonstrating superconducting characteristic |
| TWI715701B (en) * | 2016-12-29 | 2021-01-11 | 閆立中 | Aerial display system and floating pixel unit thereof |
| CN108806402A (en) * | 2018-06-09 | 2018-11-13 | 郭耀普 | The magnetic suspension demonstrating apparatus and preparation method thereof of one organic molecular species |
| CN108806402B (en) * | 2018-06-09 | 2020-04-28 | 郭耀普 | Magnetic suspension display device for organic molecules and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |