CN105067677B - A kind of superconducting wire copper hypergeometric test equipment - Google Patents
A kind of superconducting wire copper hypergeometric test equipment Download PDFInfo
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- CN105067677B CN105067677B CN201510473609.5A CN201510473609A CN105067677B CN 105067677 B CN105067677 B CN 105067677B CN 201510473609 A CN201510473609 A CN 201510473609A CN 105067677 B CN105067677 B CN 105067677B
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Abstract
The invention discloses a kind of superconducting wire copper hypergeometric test equipments, including active paying out machine, on-line testing host and active admission machine with winding displacement, on-line testing host include servo-actuated testing jig and integrally disposed digital I/O module, PXI controller, GPIB communication module, serial communication module, PXI high-accuracy data acquisition module, temperature compensation module, programmable current source, programmable nanovolt meter, K-type thermocouple, length measurement unit and encoder.The present invention is compared to the chemical weight method and image analytical method in existing Cu/Sc test method, it is simple with test equipment, when test the characteristics of completely lossless test, and the present invention can be realized the uninterrupted test of superconducting wire copper hypergeometric, superconducting wire copper hypergeometric detection efficiency is substantially increased, industrialized production is suitble to and is used.
Description
Technical field
The invention belongs to superconductor detection technique fields, and in particular to a kind of superconducting wire copper hypergeometric test equipment.
Background technique
All there is an urgent need to the fast development of superconductor technology industrialization, international heat for new energy technology development and health care progress
It is superconducting wire that nuclear fusion project ITER and the magnet of magnetic Resonance Imaging MRI, which mainly organize Chengdu, at present China's superconductor technology
Industrialization is at the early-stage, also lacks and is effectively tested in copper hypergeometric (Cu/Sc) state modulator in superconducting wire preparation process
Equipment.
Cu/Sc is important parameter one of of the superconducting wire as finished product, and Cu/Sc directly determines the design of superconducting line, and shadow
Superconducting line performance is rung, low copper ratio can increase superconduction area, improve superconducting line performance, but also increase the difficult processing of wire rod simultaneously
Degree, and the stability that high-copper is run than can be improved magnet, but necessarily decline the volume ratio of superconducting phase, while superconducting line can be made
The dangerous of disconnected core increases, and is unfavorable for improving critical current density (Jc).
Current Cu/Sc test mode has chemical weight method and image analytical method, and chemical weight method is to take unit length super
Conducting wire material removes copper by chemical attack, then by remaining superconductor of weighing, calculates the transversal of copper Cu and superconduction Sc according to density
Area ratio；Image method is that superconducting wire section is taken to take pictures by optics Electronic Speculum, then analyzes the cross-sectional area of copper Cu and superconduction Sc
Than, but both methods is all to damage detection, and test can only be sampled to product, testing efficiency is very low, is only applicable to few
Measure the laboratory test of sample.
Summary of the invention
The object of the present invention is to provide a kind of superconducting wire copper hypergeometric test equipment, which solves existing Cu/Sc and surveys
It can only be carried out the problem of damaging detection existing for examination equipment.
The technical scheme adopted by the invention is that a kind of superconducting wire copper hypergeometric test equipment, including active paying out machine,
Line tests host and the active admission machine with winding displacement.
The features of the present invention also characterized in that
On-line testing host is arranged between active paying out machine and active admission machine.
Active paying out machine is provided with tension unit, and tension unit adjusts Tensity size by the way of adjusting counterweight；Actively
Admission machine realizes the speed regulation and commutation of unwrapping wire by the way of variable-frequency motor speed regulation, and winding displacement is arranged using the polished rod of Serve Motor Control
Line mode.
On-line testing host includes servo-actuated testing jig and integrally disposed digital I/O module, PXI controller, GPIB logical
News module, PXI high-accuracy data acquisition module, temperature compensation module, programmable current source, may be programmed and receive serial communication module
Lie prostrate meter, K-type thermocouple, length measurement unit and encoder.
Servo-actuated test is placed in the closed space that one is made of clear material, and it is vertically same by 4 groups to be servo-actuated testing jig
The cylinder of movement and the cylinder composition of 1 group of horizontal movement are walked, 2 groups in the cylinder of 4 groups of vertical synchronization campaigns are mounted on test
It pops one's head in, there is two conducting wires on each test probe respectively, two conducting wires are connected respectively to programmable current source and programmable volt of receiving
On meter；Other 2 groups for increasing the frictional force of servo-actuated testing jig Yu tested superconducting wire contact surface.
Digital I/O module, PXI controller, GPIB communication module and serial communication module integrated installation are in a having electronic
In the cabinet of shielding.
The temperature of cabinet is 15 DEG C~25 DEG C.
Programmable current source is by the way of GPIB general purpose interface bus and computer communication；The output of programmable current source
Constant dc current range is 1~10 ampere.
Programmable nanovolt meter is by the way of GPIB general purpose interface bus and computer communication, measuring accuracy are 10E-9 volt
It is special.
Test probe selects yellow gold material, and test probe is using elastic plagiodont structure.
The invention has the advantages that a kind of superconducting wire copper hypergeometric test equipment, by the way that on-line testing host, energy is arranged
It is enough to be carried out non-destructive testing when detecting superconducting wire copper hypergeometric, and it is able to carry out uninterrupted test, substantially increase superconducting line
Material copper hypergeometric detection efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of superconducting wire copper hypergeometric test equipment of the present invention；
Fig. 2 is the cross-sectional view that probe is tested in the present invention.
In figure, 1. active paying out machines, 2. active admission machines, 3. servo-actuated testing jigs, 4. number I/O modules, 5.PXI control
Device, 6.GPIB communication module, 7. serial communication modules, 8.PXI high-accuracy data acquisition module, 9. temperature compensation modules, 10. can
Program current source, 11. programmable nanovolt meters, 12. tested superconducting wires, 13.K type thermocouple, 14. length measurement units, 15. compile
Code device, 16. on-line testing hosts, 17. test probes.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, a kind of superconducting wire copper hypergeometric test equipment, including active paying out machine 1,16 He of on-line testing host
Active admission machine 2 with winding displacement, on-line testing host 16 are arranged between active paying out machine 1 and active admission machine 2.
Wherein, active paying out machine 1 is provided with tension unit, and it is big that tension unit adjusts tension by the way of adjusting counterweight
It is small；Active admission machine 2 realizes the speed regulation and commutation of unwrapping wire by the way of variable-frequency motor speed regulation, and winding displacement uses Serve Motor Control
Polished rod winding displacement mode；On-line testing host 16 includes servo-actuated testing jig 3 and integrally disposed digital I/O module 4, PXI control
It is device 5 processed, GPIB communication module 6, serial communication module 7, PXI high-accuracy data acquisition module 8, temperature compensation module 9, programmable
Current source 10, programmable nanovolt meter 11, K-type thermocouple 13, length measurement unit 14 and encoder 15.Wherein, it is servo-actuated testing jig 3
It is placed in the closed space that one is made of clear material, is servo-actuated testing jig 3 by the cylinder of 4 groups of vertical synchronization campaigns and 1 group
The cylinder of horizontal movement forms, and 2 groups in the cylinder of 4 groups of vertical synchronization campaigns are mounted on test probe 17, and each test is visited
There are two conducting wires on first 17 respectively, two conducting wires are connected respectively on programmable current source 10 and programmable nanovolt meter 11；Separately
Outer 2 groups, for increasing the frictional force of servo-actuated testing jig 3 and tested 12 contact surface of superconducting wire, make to survey by the movement of synchronizing cylinder
The synchronous contact of probe header 17 is located away from tested superconducting wire 12, in addition, tested superconducting wire 12 is between 3 both ends guide wheel of arbitrary-movement articulator
Length stays constant, according to this guarantee every time test when test probe 17 between tested superconducting wire length also guarantee it is identical；Number
Word I/O module 4, PXI controller 5, GPIB communication module 6 and 7 integrated installation of serial communication module a temperature be 15 DEG C~
In the cabinet of 25 DEG C of having electronic shielding；Programmable current source 10 is logical with computer by the way of GPIB general purpose interface bus
News, output constant dc current range are 1~10 ampere；Programmable nanovolt meter 11 also using GPIB general purpose interface bus by the way of and
Computer communication, measuring accuracy are 10E-9 volts.
As shown in Fig. 2, test probe 17 selects yellow gold material, and using elastic plagiodont structure, to increase probe
The reliability contacted with superconducting wire.
A kind of application method of superconducting wire copper hypergeometric test equipment of the present invention is active paying out machine 1 and active admission machine 2
It is respectively used to unwrapping wire and take-up, active paying out machine 1 has tension regulating function, can need to adjust of superconducting wire according to test
Power size, active admission machine 2 have wire arrangement function, the superconducting wire of storage can be arranged and be arranged.When tested, will
Tested superconducting wire 12 is packed into active paying out machine 1, and superconducting line is passed through on-line testing host 16 according to determining coiling route, is arrived
Up to active admission machine 2；Again two tests probe 17 is abutted into superconducting line, by adjusting active paying out machine 1, active admission machine 2
Retractable linear velocity tests the frequency of 17 Contact Superconducting lines of probe to adjust the sample rate of Cu/Sc；Programmable current source 10 according to
Pre-set numerical value exports electric current, may be programmed the voltage of superconducting line between two test probe 17 of the test of nanovolt meter 11；By K-type heat
Galvanic couple 13 is arranged in the superconducting line near surface between two tests probe 17, measures superconducting line temperature；According to superconducting line temperature, temperature
Compensating module 9 compensates the electric conductivity difference of material between different temperatures；It is flowed through with length measurement unit 14 and the record of encoder 15
The length of superconducting line；According to the electric conductivity difference of superconducting line Cu and Sc at room temperature, the copper of each measurement point is calculated with following formula
Hypergeometric, Cu/Sc=Beta:
The actual parameter of symbology in formula are as follows:
A: constant under different temperatures, as a value is equal to 234.4 at 20 DEG C of room temperature；
B:b=a+k, k value 20；
T: the tested real-time Celsius temperature of superconducting line, unit DEG C；
S: tested superconducting line cross-sectional area,
Rh0: the resistivity of copper at 20 DEG C of room temperature, such as oxygen-free copper Rh0=0.0169；
Rm: the aggregate resistance value of superconducting line, Rm=Um/Is；
Superconduction line length, Lg >=12 meter are tested between Lg: two test probes；
X: resistivity multiple of the superconduction core filaments with respect to Rh0, such as Nb-47Ti, X=42；
Length is flowed through using the superconducting line of record and does plane right-angle coordinate abscissa, and synchronization Cu/Sc is taken to do vertical seat
Each point is connected that form Cu/Sc-L continuous with " least square fitting method " by the discrete pattern of computer drawing Cu/Sc-L by mark
Curve graph flows through to entire volume superconducting line and just forms entire volume line about the Cu/Sc test curve on length coordinate, drawn by reading
Cu/Sc test curve on correspond to Cu/Sc value at length, determine superconducting line in the copper hypergeometric of corresponding position.
Claims (4)
1. a kind of superconducting wire copper hypergeometric test equipment, it is characterised in that: including active paying out machine (1), on-line testing host
(16) the active admission machine (2) and with winding displacement, on-line testing host (16) are arranged in active paying out machine (1) and active admission machine
(2) between；Test obtains Cu/Sc-L full curve figure；
The active paying out machine (1) is provided with tension unit, and tension unit adjusts Tensity size by the way of adjusting counterweight；Institute
Speed regulation and commutation that active admission machine (2) realizes unwrapping wire by the way of variable-frequency motor speed regulation are stated, winding displacement uses servo motor control
The polished rod winding displacement mode of system；
The on-line testing host (16) includes servo-actuated testing jig (3) and integrally disposed digital I/O module (4), PXI control
Device (5), GPIB communication module (6), serial communication module (7), PXI high-accuracy data acquisition module (8), temperature compensation module
(9), programmable current source (10), programmable nanovolt meter (11), K-type thermocouple (13), length measurement unit (14) and encoder
(15)；
The servo-actuated testing jig (3) is placed in the closed space that one is made of clear material, and is servo-actuated testing jig (3) by 4 groups
The cylinder of vertical synchronization campaign and the cylinder of 1 group of horizontal movement form, and 2 groups in the cylinder of 4 groups of vertical synchronization campaigns are respectively mounted
There is test probe (17), there are two conducting wires respectively on each test probe (17), two conducting wires are connected respectively to programmable current
On source (10) and programmable nanovolt meter (11)；Other 2 groups for increasing rubbing for servo-actuated testing jig and tested superconducting wire contact surface
Wipe power；
The programmable current source (10) is by the way of GPIB general purpose interface bus and computer communication；Programmable current source
(10) output constant dc current range is 1~10 ampere；
The programmable nanovolt meter (11) is by the way of GPIB general purpose interface bus and computer communication.
2. a kind of superconducting wire copper hypergeometric test equipment according to claim 1, it is characterised in that: the number I/O mould
What block (4), PXI controller (5), GPIB communication module (6) and serial communication module (7) integrated installation were shielded in a having electronic
In cabinet.
3. a kind of superconducting wire copper hypergeometric test equipment according to claim 2, it is characterised in that: the having electronic shielding
Cabinet temperature be 15 DEG C~25 DEG C.
4. a kind of superconducting wire copper hypergeometric test equipment according to claim 1, it is characterised in that: the test probe
(17) yellow gold material is selected, test probe (17) is using elastic plagiodont structure.
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| CN107505493B (en) * | 2016-11-04 | 2023-09-26 | 洛阳理工学院 | Tension-controllable superconducting strip critical current measuring device |
| CN110823747B (en) * | 2019-10-30 | 2022-02-22 | 西部超导材料科技股份有限公司 | Method for measuring copper-to-over ratio of WIC (wire in wire) inlaid superconducting wire by mass-resistance method |
| CN113008185A (en) * | 2021-01-25 | 2021-06-22 | 四川东钢新材料股份有限公司 | Cable coating thickness detection method and aluminum layer uniform thickness detection method of aluminum-clad steel wire |
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| CN102012460A (en) * | 2010-09-21 | 2011-04-13 | 上海大学 | Method and system for measuring alternating current impedance characteristic of material or electronic component under extreme condition |
| CN102243197A (en) * | 2011-04-25 | 2011-11-16 | 中国地质大学（武汉） | Nondestructive testing method based on skin effect resistance |
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