CN104614691B - Measure high-temperature superconductor characteristic experimental apparatus - Google Patents
Measure high-temperature superconductor characteristic experimental apparatus Download PDFInfo
- Publication number
- CN104614691B CN104614691B CN201510031804.2A CN201510031804A CN104614691B CN 104614691 B CN104614691 B CN 104614691B CN 201510031804 A CN201510031804 A CN 201510031804A CN 104614691 B CN104614691 B CN 104614691B
- Authority
- CN
- China
- Prior art keywords
- cover
- rtd
- spool
- lead
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
The invention discloses a kind of experimental provision for the measurement high-temperature superconductor bulk properties that can arbitrarily control superconducting sample rate of temperature fall, extend sample service life.The experimental provision is risen or dropped in Vacuum insulation bottle using red copper cylinder of the lift control equipped with test suite of wheel and rack bar fitting mechanism form, is changed into immersion liquid nitrogen degree, is adjusted superconducting sample rate of temperature fall.Hermetically sealed test suite effectively extends sample service life plus a variety of moisture preventive measures.Welding is instead of for the sample strain way of contact with elastic top, sample is changed and facilitates and contact reliable.
Description
Technical field
The invention belongs to experiment device for teaching, and more specifically, it belongs to measurement high temperature in universities and colleges' Physical Experiment and surpassed
The experimental provision of conductor characteristics.
Background technology
The fundamental characteristics such as the transition temperature of high-tc-super conductor material need to be often measured in low temperature test, experiment be able to need to grown
Time keeps liquid nitrogen 77K (- 196oC) carried out in the experimental provision of low temperature, experimental provision arbitrarily will can control superconductor to cool
Speed, it is impossible to too cooling or too slow (liquid nitrogen gasification loss is more) soon, to be convenient for measuring the physics such as superconductor transition temperature curve
Delta data, student is allowed it is observed that high-temperature superconductor quickly occurs zero suddenly in a certain temperature higher than liquid nitrogen temperature (77K)
The physical phenomenon of resistance.
Because high-temperature oxide superconducting material is the crisp ceramic material of quality, by low temperature effect, surface can condense air
In moisture content, be allowed to make moist and damage.Superconducting sample resistance is smaller, to eliminate influence of the measurement lead to measurement, frequently with four
Terminal method.Four electrodes are often ground with phosphide material on superconducting sample to be pressed into, and it is very unreliable that electrode is connected with ligament, easily de-
Fall.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of experiment dress for measuring high-temperature superconductor bulk properties
Put.
The purpose of the present invention is achieved through the following technical solutions：A kind of experiment dress for measuring high-temperature superconductor bulk properties
Put, it is characterised in that including lift, cross bar, terminal box, spool, dome, red copper cylinder, Vacuum insulation bottle, fence；It is described
Lift and fence are installed on platform；Vacuum insulation bottle is installed in fence；Cross bar is arranged on the top of lift, wiring
Box is arranged on the end of cross bar；Spool upper end is connected with terminal box, and lower end has external screw thread, and lower end passes through dome, justifies with red copper
Cylinder is connected；
The red copper cylinder includes cylinder cap, stack shell, heat conducting bar, thermally conductive sheet and cover, wherein, cover is that center has circular bosses
Round pie, cover are provided with central through hole, the central through hole of cover with the internal thread to match with spool end external screw thread, cylinder
Lid is threadedly coupled with spool；For cylinder cap sleeve on the circular bosses of cover, cylinder cap has an internal thread, stack shell upper end have with cylinder cap in
The external screw thread that screw thread is engaged；Screwing a cap can make cover press stack shell upper port and closed.Thermally conductive sheet is installed by heat conducting bar
In the bottom of stack shell；Test suite is arranged on below cover；
The test suite includes two cover plates, lead-out wire, substrate, superconducting sample, lining plank, four elastic thimbles, indiums
Silk, RTD, voltage regulation screw and thimble clamping plate.Substrate is fixed on below cover, and substrate is provided with lead hole, RTD chamber and peace
It behave affectedly, RTD chamber and installation cavity are communicated by lead hole with cover；Thimble Boards wall is in installation cavity, four elastic tops
Pin is arranged in order on thimble clamping plate, and lead-out wire of four elastic thimble upper ends respectively with four mutually insulateds is connected, and draws
Outlet sequentially passes through, cover, spool, terminal box are connected with test circuit；RTD is arranged on RTD intracavitary, lead one end with
RTD is connected, and the other end sequentially passes through cover, spool, terminal box and is connected with measuring instrumentss；Superconducting sample, lining plank are pacified successively
Below elastic thimble；Voltage regulation screw screws in the bottom screw of substrate, and withstands lining plank, and it is adjustable super to tune two screws
Lead pressure size and the uniformity of the sample by elastic thimble；Two cover plates are pressed on two before and after substrate by multiple screws respectively
Face；There is annular indium silk groove on two sides before and after substrate, and indium silk is in indium silk groove.
Due to being had the advantages that using above-mentioned technical proposal, the invention：
1. enabling experimenter arbitrarily to control superconductor rate of temperature fall, certain rate of temperature fall is can be fast or slow or kept.
It is 2. convenient without welding and changing sample using four elastic thimbles and superconducting sample reliable contacts.
3. using conventional vacuum vacuum flask, inexpensive but heat insulation effect is good, and a small amount of liquid nitrogen can be completed to test.
4. test suite hermetic design, making superconducting sample, moisture-sensitive or liquid nitrogen do not immerse, can many experiments do not damage.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the sectional view of red copper cylinder；
Fig. 3 is the structural representation of test suite；
Fig. 4 is the schematic diagram of lift；
Fig. 5 is cover（There is the round pie of circular bosses in center）Structural representation；
In figure：Vacuum insulation bottle 1, test suite 2, red copper cylinder 3, spool 4, dome 5, fence 6, cross bar 7, screw 8, put down
Platform 9, lift 10, superconducting sample 11, lining plank 12, elastic thimble 13, indium silk groove 14, voltage regulation screw 15, thimble clamping plate 16,
Lead-out wire 17, substrate 18, RTD 19, cover plate 20, rack bar 21, knob 22, vertical tube 23, terminal box 24, fixed cover 25, cylinder cap
26th, stack shell 27, heat conducting bar 28, thermally conductive sheet 29, cover 30.
Embodiment
As shown in figure 1, a kind of experimental provision for measuring high-temperature superconductor bulk properties, including lift 10, cross bar 7, terminal box
24th, spool 4, dome 5, red copper cylinder 3, Vacuum insulation bottle 1, fence 6；The lift 10 and fence 6 are installed in platform 9
On.Vacuum insulation bottle 1 is installed in fence 6, to prevent from turning on one's side；Cross bar 7 is arranged on the top of lift 10, and terminal box 24 is installed
In the end of cross bar 7；The upper end of spool 4 is connected with terminal box 24, and lower end has external screw thread, and lower end passes through dome 5, with red copper cylinder
3 are connected；Dome 5 is covered in the bottleneck of Vacuum insulation bottle 1, can reduce liquid nitrogen gasification consumption.Specifically, in the top water of lift 10
The cylindric fixed cover 25 of safety dress, cross bar 7 are located inside fixed cover 25, and the top of fixed cover 25 is rotary with screw 8, when needing to adjust
During the horizontal level of red copper cylinder 3, unscrew screw 8, adjust the position of cross bar 7 so that red copper cylinder 3 is located at Vacuum insulation bottle 1
Surface, then tighten screw 8.
As shown in Fig. 2 the red copper cylinder 3 includes cylinder cap 26, stack shell 27, heat conducting bar 28, thermally conductive sheet 29 and cover 30, its
In, cover 30 has the round pie of circular bosses for center（As shown in figure 5, be made up of two cylinders, above cylinder diameter be less than under
The diameter of the cylinder in face）, cover 30 is provided with central through hole, and the hole wall of the central through hole of cover 30 has and spiral shell outside the end of spool 4
The internal thread that line matches, cover 30 are threadedly coupled with spool 4；Cylinder cap 26 is enclosed on the circular bosses of cover 30, and cylinder cap 26 has
Internal thread, the external screw thread that the upper end of stack shell 27 has with internal thread is engaged on cylinder cap 26.Screwing a cap 26 can press cover 30
The upper port of stack shell 27 and it is closed.Thermally conductive sheet 29 is arranged on the bottom of stack shell 27 by heat conducting bar 28；Test suite 2 is arranged on cover
Below 30, red copper cylinder 3 can control to rise or drop in Vacuum insulation bottle 1 by lift 10, the bottom heat conduction of regulation red copper cylinder 3
Piece 29 enters immersion liquid nitrogen degree, effectively controls the rate of temperature fall of test suite 2.
As shown in figure 3, the test suite 2 includes two cover plates 20, lead-out wire 17, substrate 18, superconducting sample 11, pad
12, four elastic thimbles 13 of plate, indium silk, RTD 19, voltage regulation screw 15 and thimble clamping plate 16.Substrate 18 is fixed on cover 30
On, substrate 18 is provided with lead hole, RTD chamber and installation cavity, and RTD chamber and installation cavity pass through lead hole and the phase of cover 30
It is logical；Thimble clamping plate 16 is fixed in installation cavity, and four thimbles of elasticity 13 are arranged in order on thimble clamping plate 16, four elasticity
The upper end of thimble 13 is connected with the lead-out wire 17 of four mutually insulateds respectively, lead-out wire 17 sequentially passes through, cover 30, spool 4, wiring
Box 24 is connected with test circuit, and the physical properties such as the transition temperature curve of superconducting sample 11 are measured with four-terminal method.RTD 19
Installed in RTD intracavitary, lead one end is connected with RTD 19, the other end sequentially pass through cover 30, spool 4, terminal box 24 with
Measuring instrumentss are connected, with test temperature.Superconducting sample 11, lining plank 12 are sequentially arranged at the elastic lower section of thimble 13.Voltage regulation screw
15 screw in the bottom screw of substrate 18, and withstand lining plank 12；In the presence of two voltage regulation screws 15, superconduction is equably above pushed away
Sample 11 so that superconducting sample 11 is in close contact with four elastic thimbles 13.The present invention is carried out by elastic thimble 13 to sample
Pressure contact, traditional welding is instead of, changes sample conveniently and contact is reliable, reduce influence of the contact resistance to experiment,
The service life of superconducting sample is also extended simultaneously.
Two cover plates 20 are pressed on the front and rear two sides of substrate 18 by screw respectively；There is annular indium on two sides before and after substrate 18
Silk groove 14, indium silk is in indium silk groove 14.Two cover plates 20, which press, makes indium silk deformation, can help more preferable sealing.
Substrate 18 and front and rear cover plate 20 are red copper material, and lining plank 12, thimble clamping plate 16 are insulating sheet material, and screw is not
Become rusty steel screw.Elastic thimble 13 is the interior gold-plated copper double-jacket tube for having stainless steel stage clip.
As shown in figure 4, the lift is made up of rack bar 21, knob 22, vertical tube 23, gear, the He of rack bar 21
Gear is fixedly mounted in vertical tube, and rack bar 21 and gear engagement, knob 22 are connected with gear, and turn clockwise knob 22,
Rack bar 21 moves downward, and lift declines；On the contrary, rotate counterclockwise knob 22, rack bar 21 moves upwards, on lift
Rise.
Claims (1)
1. a kind of experimental provision for measuring high-temperature superconductor bulk properties, it is characterised in that including lift（10）, cross bar（7）, wiring
Box（24）, spool（4）, dome（5）, red copper cylinder（3）, Vacuum insulation bottle（1）, fence（6）；The lift（10）And fence
（6）It is installed in platform（9）On；Vacuum insulation bottle（1）It is installed on fence（6）In；Cross bar（7）Installed in lift（10）Top
End, terminal box（24）Installed in cross bar（7）End；Spool（4）Upper end and terminal box（24）It is connected, lower end has external screw thread,
Lower end passes through dome（5）, with red copper cylinder（3）It is connected；
The red copper cylinder（3）Including cylinder cap（26）, stack shell（27）, heat conducting bar（28）, thermally conductive sheet（29）And cover（30）, its
In, cover（30）There is the round pie of circular bosses for center, cover is provided with central through hole, cover（30）Central through hole have with
Spool（4）The internal thread that end external screw thread matches, cover（30）With spool（4）Threaded connection；Cylinder cap（26）It is enclosed on cover
（30）Circular bosses on, cylinder cap（26）With internal thread, stack shell（27）Upper end has and cylinder cap（26）What upper internal thread was engaged
External screw thread；Thermally conductive sheet（29）Pass through heat conducting bar（28）Installed in stack shell（27）Bottom；Test suite（2）Installed in cover（30）
Below；
The test suite（2）Including two cover plates（20）, lead-out wire（17）, substrate（18）, superconducting sample（11）, lining plank
（12）, four elastic thimbles（13）, indium silk, RTD（19）, voltage regulation screw（15）With thimble clamping plate（16）；Substrate（18）It is fixed
In cover（30）Below, substrate（18）Lead hole, RTD chamber and installation cavity are provided with, RTD chamber and installation cavity pass through lead
Through hole and cover（30）Communicate；Thimble clamping plate（16）It is fixed in installation cavity, four elastic thimbles（13）It is arranged in order and is arranged on
Thimble clamping plate（16）On, four elastic thimbles（13）The upper end lead-out wire with four mutually insulateds respectively（17）It is connected, lead-out wire
（17）Sequentially pass through cover（30）, spool（4）, terminal box（24）It is connected with test circuit；RTD（19）Installed in RTD
Intracavitary, lead one end and RTD（19）It is connected, the other end sequentially passes through cover（30）, spool（4）, terminal box（24）With measurement
Instrument is connected；Superconducting sample（11）, lining plank（12）It is sequentially arranged at elastic thimble（13）Lower section；Voltage regulation screw（15）Screw in base
Plate（18）Bottom screw, and withstand lining plank（12）；Two cover plates（20）Respectively substrate is pressed on by multiple screws（18）
Front and rear two sides；Substrate（18）There is annular indium silk groove on front and rear two sides（14）, indium silk is embedded in indium silk groove（14）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510031804.2A CN104614691B (en) | 2015-01-22 | 2015-01-22 | Measure high-temperature superconductor characteristic experimental apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510031804.2A CN104614691B (en) | 2015-01-22 | 2015-01-22 | Measure high-temperature superconductor characteristic experimental apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104614691A CN104614691A (en) | 2015-05-13 |
| CN104614691B true CN104614691B (en) | 2017-11-17 |
Family
ID=53149225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510031804.2A Active CN104614691B (en) | 2015-01-22 | 2015-01-22 | Measure high-temperature superconductor characteristic experimental apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104614691B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204389666U (en) * | 2015-01-22 | 2015-06-10 | 杭州精科仪器有限公司 | A kind of measurement high-temperature superconductor characteristic experimental apparatus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5065087A (en) * | 1988-10-04 | 1991-11-12 | Sharp Kabushiki Kaisha | Apparatus for observing a superconductive phenomenon in a superconductor |
| CN2126446U (en) * | 1992-07-10 | 1992-12-30 | 中国科学技术大学研究生院 | Superconductor zero resitance test demonstrating device |
| CN101387672B (en) * | 2007-09-11 | 2011-10-26 | 上海电缆研究所 | High-temperature superconductive cable insulation electrical characteristic test device |
| CN201434875Y (en) * | 2009-03-31 | 2010-03-31 | 深圳市微高半导体科技有限公司 | Chip testing jig |
| CN202159074U (en) * | 2011-06-01 | 2012-03-07 | 顺德中山大学太阳能研究院 | Power-on test device for solar cell |
| CN102426812B (en) * | 2011-11-15 | 2014-04-16 | 赵杰 | High-temperature superconducting comprehensive experiment instrument |
| CN103706415B (en) * | 2013-12-24 | 2015-06-17 | 华中科技大学 | Sample rod for low-temperature storage of Dewar |
-
2015
- 2015-01-22 CN CN201510031804.2A patent/CN104614691B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204389666U (en) * | 2015-01-22 | 2015-06-10 | 杭州精科仪器有限公司 | A kind of measurement high-temperature superconductor characteristic experimental apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104614691A (en) | 2015-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105588958B (en) | A kind of quick multifunctional electronic component temperature characteristic measuring instrument and test cavity | |
| CN207181611U (en) | A kind of transformer oil paper insulation test piece detection means | |
| CN204989329U (en) | Insulating examination article electricity - heat is ageing sealed experimental apparatus jointly | |
| CN110501368A (en) | A kind of combined heat and power experimental rig for gas and solid material compatibility | |
| CN105119069A (en) | Digital substation transformer high-voltage porcelain bush wiring chuck | |
| CN103412177A (en) | Measuring device for dielectric substance thermally stimulated currents under high withstand voltage and vacuum condition | |
| CN103336232B (en) | A kind of pick-up unit | |
| CN104614691B (en) | Measure high-temperature superconductor characteristic experimental apparatus | |
| CN206905839U (en) | A kind of battery producing gas test device | |
| CN204389666U (en) | A kind of measurement high-temperature superconductor characteristic experimental apparatus | |
| CN214668157U (en) | High-low temperature test bed suitable for deformation test of phase change energy storage device | |
| CN209485411U (en) | High-voltage switch gear failure gas on-line analysis equipment | |
| CN202119875U (en) | High-temperature aging device for microwave transistor | |
| CN203422340U (en) | Electrode for high-temperature and high-pressure reaction kettle | |
| WO2014067249A1 (en) | Soaking pressure resistance test method and system for bimetal-element waterproof thermostat | |
| CN107917937A (en) | A kind of low pressure dielectric loss on-line monitoring method of determining device body degree of drying | |
| CN203178458U (en) | High repeatability standard bubble discharging model device | |
| CN208367119U (en) | A kind of mixed gas electric property measuring device | |
| CN210347466U (en) | Raman probe cold and hot table and gas environment testing cavity assembly thereof | |
| CN207180822U (en) | A kind of forced electrode | |
| CN210294186U (en) | Chromatographic column device of gas chromatograph | |
| CN203148606U (en) | Novel force sensor for measuring breaker contact | |
| CN206930740U (en) | A kind of high-temperature silicon disulfide rubber insulative pipe sleeve detection means | |
| CN201359623Y (en) | DC high-voltage forcipated current measuring device | |
| CN109443452A (en) | High-voltage switch gear failure gas on-line analysis equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |