CN104198803B - A kind of on-line monitoring system of high-temperature superconducting magnet - Google Patents
A kind of on-line monitoring system of high-temperature superconducting magnet Download PDFInfo
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- CN104198803B CN104198803B CN201410448697.9A CN201410448697A CN104198803B CN 104198803 B CN104198803 B CN 104198803B CN 201410448697 A CN201410448697 A CN 201410448697A CN 104198803 B CN104198803 B CN 104198803B
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Abstract
A kind of on-line monitoring system of high-temperature superconducting magnet, including：1) high-temperature superconductive magnet system；2) conduction cooling refrigeration system, the refrigeration system includes cryocooler cold head, copper conduction cooling terminal pad and copper conduction cooling skeleton；3) cooled cryostat system；4) test device, digital voltmeter, carburizing ceramic temperature sensor, measurement manganin wire, the thermally conductive insulating layer being coated on copper conduction cooling skeleton, temperature transmitter, optic fiber converter, optical fiber；Crimp copper sheet, and low-temperature high-vacuum fat.Test device includes computer and current sensor.Measurement is wrapped in thermally conductive insulating layer with the center section of manganin wire.Carburizing ceramic temperature sensor is pressed directly against the surface of high-temperature superconductor band, and two ends are affixed directly to the surface of high-temperature superconductor band by welding.Low-temperature high-vacuum fat is filled in the gap between crimping copper sheet and carburizing ceramic temperature sensor and high-temperature superconductor band, for aiding in fixing carburizing ceramic temperature sensor and heat conduction.
Description
Technical field
The present invention relates to a kind of monitoring system of high-temperature superconducting magnet.
Background technology
1911, Dutch physicist Ka Mailinang Nice was found that superconductor.Superconductor has zero resistance, resisted completely
The peculiar physical characteristic such as magnetic and quantum tunneling effect, superconductor superconductivity and its has applied one since it is found
It is directly one of most active research frontier in contemporary science and technology, in the energy, information, traffic, scientific instrument, medical skill
Important application value is respectively provided with terms of art, national defence and major scientific projects.
Superconductivity is to be found first in mercury by Dutch physicist Onnes for 1911.It refers to superconductor in temperature
When dropping to a certain value, the phenomenon that resistance suddenly disappears.This characteristic temperature is defined as critical transition temperature Tc.From thenceforth
Rise, physicist and material supply section scholars have carried out unremitting effort in terms of the experiment and theoretical research of superconductivity.Superconduction
Body has three kinds of fundamental characteristics：Zero resistance, diamagnetism and macroscopic quantum characteristic.Before 1986, it has been found that Tc highests
Superconductor is Nb3Ge, 23.2K.In April, 1986, Bednorz and Muller were found that LaBaCuO superconductors, its Tc more than 30K,
The YBCO superconductors that Tc is higher than 90K are subsequently found, so as to open new era of superconductivity research.
Superconductor is that superconductor technology is able to wide variety of basis, superconductor be broadly divided into low temperature superconducting material (with
NbTi and Nb3Sn is representative) and high temperature superconducting materia (with YBCO, BSCCO, TBCCO etc. for representative).Effort in decades makes
Superconductor is studied and practical all had made great progress.Traditional low temperature superconducting material, particularly with NbTi alloys and
Nb3Low temperature superconducting material based on Sn alloys, because it has excellent machining property and superconductivity, from upper reality 80
Age starts to be constantly in the leading position in superconduction market.Some scientific research engineering projects, such as accelerator, thermonuclear fusion heap and matter
Sub- collider etc. is required for substantial amounts of NbTi and Nb3Sn superconductors；At present, the magnet of medical nmr imaging is mostly
It is low temperature superconducting material.But, because low temperature superconducting material can only operate in 4.2K liquid helium region, low temperature environment turns into superconduction
The bottleneck of technology large-scale application.
Liquid nitrogen temperature (77K), even can be operated in for the high temperature superconducting materia of representative with YBCO, BSCCO, TBCCO etc.
Liquefied natural gas warm area (113K), because the extremely abundant and 77K liquid nitrogen temperature of nitrogen resource is higher by 73 than liquid helium temperature
Degree, brings substantially reducing for refrigeration cost so that the heavy industrialization application of superconductor technology is possibly realized.At present with BSCCO
High-temperature superconductor band comes into the industrialization stage for the first generation high-temperature superconductor band of representative, and starts to be used for practical superconduction
Equipment and device research and development.Using YBCO coating conductors as the second-generation high-temperature superconductor of representative, due to it under High-Field current-carrying energy
Power is significantly better than first generation BSCCO high-temperature superconductor bands, the study hotspot in recent years as superconductor field, the U.S. and day
This has carried out broad scale research plan in succession, substantial amounts of manpower and materials has been put into, while also achieving good achievement in research.
Superconducting Power Technology is superconducting state-normal state phase of the without hindrance high density current capacity and superconductor that utilize superconductor
The application technology that the physical characteristic of change grows up.In the late two decades, using Superconducting Power Technology, in superconductive power transmission, current limliting
Device, transformer, energy storage, the development of the superconducting power device such as motor in terms of Demonstration Application with achieving good achievement.Using super
Power technology is led, the quality of electric energy can be not only obviously improved, the stability and reliability of Operation of Electric Systems, reduction electricity is improved
Grade is pressed, the security of power network is improved, makes the possibility that is implemented as of ultra-large power network, but also unit appearance can be greatly improved
The transmission capacity of amount and power network, and substantially reduce the loss of power network.Moreover, can also be substantially improved by superconducting energy storage can
The quality of power supply of the renewable sources of energy, and it is effectively coupled with bulk power grid.
In recent years, China also achieves major progress in terms of Superconducting Power Technology, in terms of high tc superconducting fault current limiter, first
After develop 10.5kV/1.5kA three-phases and improve bridge circuit type, 35kV/90MVA saturable cores type and 220kV/800A saturable core types
High tc superconducting fault current limiter model machine, and linked network test run；In terms of high-temperature superconductive transformer, China Shou Tai has successively been succeeded in developing
630kVA, 10.5kV/400V three-phase transformer and 300kVA, 25kV/860V single-phase transformer model machine；And in high-temperature superconductor storage
Energy aspect, successively develops 100kJ/25kV, 500kJ/150kVA and 35kJ/7kW high-temperature superconducting energy storage model machine etc..And with
The core component of these upper high-temperature superconductor electric devices, is exactly high-temperature superconductive magnet system.
With the breakthrough of continuing to develop for high temperature superconductor technology, and second-generation high-temperature superconductor technology of preparing, it is based on
The high-temperature superconductive magnet system that second-generation high-temperature superconductor is researched and developed is going into the practical new stage, and with extensive
Application prospect.And the high-temperature superconducting magnet hot-spot of second-generation high-temperature superconductor institute coiling is possible to cause high-temperature superconductor magnetic
The key factor that body is quenched or burnt, so that there is what is stressed to be monitored to the temperature weak spot inside high-temperature superconducting magnet,
And fast and accurately the electric current on its internal high temperature superconducting tape, voltage are monitored, for super based on second generation high temperature
It is extremely important for the high-temperature superconducting magnet that conduction band material is developed.However, the main composition part high temperature of high-temperature superconducting magnet surpasses
In the environment of conduction band material is typically all in high voltage, high-intensity magnetic field, the monitoring for temperature, electric current, voltage is relatively difficult.It is especially right
High-temperature superconducting magnet under conduction cooling condition, not only needs fast and accurately to monitor it, and monitoring system
Itself to ensure at will introduce outside heat, and aggravate the danger of potential heat spot, because for second generation high temperature
Superconducting tape, band superconducting layer itself is very thin, unit length superconducting tape small volume, so that thermal capacitance is small, when quenching in temperature
Rise fast, once temperature overheating, is very easy to blow, so as to cause quenching and burning for whole magnet system.
The content of the invention
It is an object of the invention to overcome the shortcoming of prior art, proposing that exploitation is a kind of is used for high voltage, high-intensity magnetic field, low temperature
Conduct the on-line monitoring system of the high-temperature superconducting magnet under cooling condition.The present invention can be carried out more accurately and conveniently in high electricity
The temperature on the high-temperature superconductor band inside high-temperature superconducting magnet under pressure, high-intensity magnetic field, Conduction At Low Temperature cooling condition, electric current, electricity
The monitoring of pressure.
The present invention is used for the on-line monitoring system of high-temperature superconducting magnet, including：
1) high-temperature superconductive magnet system, the high-temperature superconductive magnet system includes：High-temperature superconductor band, conduction cooling superconduction
Magnet skeleton, the first current feed and the second current feed；The high-temperature superconductor band is wound on the conduction cooling superconducting magnetic
On body skeleton；First termination of one end of the first described current feed and the high-temperature superconductor band by welding each other
Connection, the described other end of the first current feed is connected with the first end of external power supply；The one of the second described current feed
End is connected to each other with second termination of the high-temperature superconductor band by welding, the other end of second current feed and
Second end of external power supply is connected；
2) conduction cooling refrigeration system, the conduction cooling refrigeration system includes：Cryocooler cold head, copper conduction cooling terminal pad,
First bronze medal conduction cooling skeleton and the second bronze medal conduction cooling skeleton；The cryocooler cold head is connected with the copper conduction cooling terminal pad；Described first
One end of copper conduction cooling skeleton and one end of the second bronze medal conduction cooling skeleton are connected with the copper conduction cooling terminal pad respectively, and described first
Copper conduction cooling skeleton and the second bronze medal conduction cooling skeleton are all used to carry out conduction cooling to the high-temperature superconductive magnet system；
3) cooled cryostat system, the cooled cryostat system includes：Cooled cryostat and cooled cryostat cover plate；Described high temperature
Superconducting tape, conduction cooling superconducting magnet skeleton, cryocooler cold head, copper conduction cooling terminal pad, the first bronze medal conduction cooling skeleton and the second bronze medal
Conduction cooling skeleton is placed in described cooled cryostat；Described cooled cryostat cover plate is covered in the opening of the cooled cryostat, shape
Into vacuum seal structure；Described the first current feed and the second current feed be connected with described high-temperature superconductor band one
End, in described cooled cryostat, the other end is extended to by described cooled cryostat cover plate outside described cooled cryostat, and
It is connected with external power supply；
4) test device,
The test device includes：
A) computer；
B) current testing device, the current testing device includes：
Current sensor, the current sensor is enclosed on the periphery of first current feed, the current sensor
Current value for detecting high-temperature superconductor band upstream warp；
First digital voltmeter, first digital voltmeter is electrically connected by signal wire with the current sensor, institute
Stating the first digital voltmeter is used to detect the output voltage signal on the current sensor；
First optic fiber converter, first optic fiber converter is electrically connected by signal wire with first digital voltmeter
Connect, first optic fiber converter is used to convert electrical signals into optical signal；
First optical fiber, one end of first optical fiber and the first optic fiber converter light connects, first optical fiber are used
In the transmission for entering traveling optical signal；
Second optic fiber converter, the other end of first optical fiber and the second optic fiber converter light connects, described the
Two optic fiber converters are used to optical signal being then converted to electric signal, and the computer is changed by signal wire and second optical fiber
Device electrically connect, for by second optic fiber converter it is transformed Lai electric signal be acquired, show, analyze and handle；
C) voltage test device, the voltage test device includes：
First voltage measurement manganin wire, to the direction away from termination on the high-temperature superconductor band, apart from the height
The pad of the termination of temperature superconductive band first and first current feed is three times in the distance of the high-temperature superconductor band width
Point, welds one end of the first voltage measurement manganin wire；
Second voltage measurement manganin wire, to the direction away from termination on the high-temperature superconductor band, apart from the height
The pad of the termination of temperature superconductive band second and second current feed is three times in the distance of the high-temperature superconductor band width
Point, welds one end of the second voltage measurement manganin wire；
First thermally conductive insulating layer, first thermally conductive insulating layer is coated on the periphery of the first bronze medal conduction cooling skeleton, institute
State first voltage measurement manganin wire and the second voltage measurement manganin wire center section is wrapped in substantially spiral-shaped
In first thermally conductive insulating layer；
Second digital voltmeter, the first voltage measurement manganin wire and the second voltage measurement manganin wire it is another
One end is electrically connected with second digital voltmeter respectively；
3rd optic fiber converter, the 3rd optic fiber converter is electrically connected by signal wire with second digital voltmeter
Connect, the 3rd optic fiber converter is used to convert electrical signals into optical signal；
Second optical fiber, one end of second optical fiber and the 3rd optic fiber converter light connects, second optical fiber are used
In the transmission for entering traveling optical signal；
4th optic fiber converter, the other end of second optical fiber and the 4th optic fiber converter light connects, described the
Four optic fiber converters are used to optical signal being then converted to electric signal, and the computer is changed by signal wire and the 4th optical fiber
Device electrically connect, for by the 4th optic fiber converter it is transformed Lai electric signal be acquired, show, analyze and handle.
Preferably, the test device also includes temperature testing device, and the temperature testing device includes being arranged on described
The carburizing ceramic temperature sensor on the surface of high-temperature superconductor band.Finished in the high-temperature superconductor band coiling, and installation is oozed
After carbon ceramics temperature sensor, with epoxy hardener to the conduction cooling superconducting magnet skeleton, the high-temperature superconductor band and
The carburizing ceramic temperature sensor carries out dipping solidification.
Preferably, the test device also includes：
Temperature survey manganin wire, one end of the temperature survey manganin wire and the carburizing ceramic temperature sensor
Lead-out wire is by being welded to connect；
Second thermally conductive insulating layer, second thermally conductive insulating layer is coated on the periphery of the second bronze medal conduction cooling skeleton, institute
The center section of temperature survey manganin wire is stated to be wrapped in second thermally conductive insulating layer with substantially spiral-shaped；
Temperature transmitter, the other end of the temperature survey manganin wire and temperature transmitter electrical connection；
5th optic fiber converter, the 5th optic fiber converter is electrically connected by signal wire with the temperature transmitter, institute
Stating the 5th optic fiber converter is used to convert electrical signals into optical signal；
3rd optical fiber, one end and the 5th optic fiber converter light connects of the 3rd optical fiber, the 3rd optical fiber is used
In the transmission for entering traveling optical signal；
Six fiberses converter, the other end of the 3rd optical fiber and the six fiberses converter light connects, described the
Six fiberses converter is used to optical signal being then converted to electric signal, and the computer is changed by signal wire and the six fiberses
Device electrically connect, for by the six fiberses converter it is transformed Lai electric signal be acquired, show, analyze and handle；
Copper sheet is crimped, the carburizing ceramic temperature sensor is pressed directly against described by the center section of the crimping copper sheet
The surface of high-temperature superconductor band, the two ends of the crimping copper sheet are fixed directly to the table of the high-temperature superconductor band by welding
Face, the surface the carburizing ceramic temperature sensor to be fastened on to the high-temperature superconductor band；
Low-temperature high-vacuum fat, the low-temperature high-vacuum fat is filled in the crimping copper sheet and the ceramic TEMP of the carburizing
In gap between device and the high-temperature superconductor band, led for aiding in fixing the carburizing ceramic temperature sensor and playing
Heat effect.
Preferably, first thermally conductive insulating layer and second thermally conductive insulating layer are by epoxy resin doped aluminum nitride powder
The mixture at end makes.
Preferably, the first vacuum transition plug is sealed and installed with the cooled cryostat cover plate and the second vacuum transition is inserted
Head, it is true that the first voltage measurement is sealingly clamped to described first with manganin wire respectively with manganin wire and the second voltage measurement
Empty intermediate plug and pass through the first vacuum transition plug and second digital voltmeter and electrically connect, the temperature survey
The second vacuum transition plug is sealingly clamped to manganin wire and by the second vacuum transition plug and the temperature
Transmitter is electrically connected.
In the present invention, because carburizing ceramic temperature sensor is under the conditions of 6T and 4.5K, thermometric error is less than
1%, so by setting carburizing ceramic temperature sensor, it is ensured that the accuracy of the temperature monitoring under strong magnetic field circumstance.It is logical
Setting crimping copper sheet is crossed, and fills low-temperature high-vacuum fat, it is ensured that carburizing ceramic temperature sensor can be fitted tightly over height
The surface of temperature superconductive band, with one of the temperature between the high-temperature superconductor band that ensures carburizing ceramic temperature sensor and tested
Cause property, so as to more directly, accurately be carried out accurately to the temperature on the high-temperature superconductor band inside high-temperature superconducting magnet
Measurement.By setting first voltage measurement manganin wire and second voltage measurement manganin wire center section by substantially spiral-shaped
Ground is wrapped in the first thermally conductive insulating layer, and the center section of temperature survey manganin wire is wrapped in substantially spiral-shaped
In two thermally conductive insulating layer.This aspect is heat sink equivalent to being provided with, it is described it is heat sink be the first bronze medal conduction cooling skeleton and first
The combination of thermally conductive insulating layer, and the second bronze medal conduction cooling skeleton and the second thermally conductive insulating layer combination, heat exchange can be promoted, it is another
Aspect can prevent lead stress from breaking.Specifically, for conduction cooling high temperature superconducting magnet, it not only must take into consideration measurement line
Influence of the conduction heat to measurement accuracy, will also be reduced by measuring the heat that line is introduced from outside into, if be introduced from outside into as far as possible
Heat it is excessive, it is possible to cause the overall efficiency of conduction cooling refrigeration system to decline so that high-temperature superconducting magnet can not be by
Predetermined temperature is cooled to, is also possible to trigger for local thermal conductivity points the local temperature rise of high-temperature superconductor band in addition, increase high temperature surpasses
The danger that conduction band material is blown, so, on the one hand need to use the high manganin wire of low thermal conductivity, resistivity as measurement with drawing
Line, on the one hand has in measurement with setting heat sink on manganin wire, promotes measurement fully to carry out heat exchange with heat sink with manganin wire,
The importing of outside heat is avoided, prevents from measuring the influence of line conduction heat.The heat sink upstream end that must be placed in conduction cooling path, it is as far as possible remote
From high-temperature superconducting magnet, it is 0 to ensure conduction to the thermic load on high-temperature superconductor band and carburizing ceramic temperature sensor as far as possible, really
Temperature, the accuracy of voltage monitoring protected under conduction cooler environment.It is fixed on substantially spiral-shaped canoe described
On thermal insulation layer, then the margin of safety of measurement manganin wire is added, can effectively prevent from measuring caused by expanding with heat and contract with cold
The danger that line stress is broken.By setting the first thermally conductive insulating layer and the second thermally conductive insulating layer, and their material be all by
What the mixture of epoxy resin doped aluminum nitride powder made.Aluminium nitride powder is that a kind of thermal conductivity is high, thermal coefficient of expansion is small, electricity
The good ceramic material of insulating properties, the mixture made of doped aluminum nitride powder in the epoxy, not only can be effective
Ground, can also be effectively to first voltage measurement manganin wire by the heat derives on measurement manganin wire to copper conduction cooling skeleton
Between second voltage measurement manganin wire and the first bronze medal conduction cooling skeleton, and temperature survey manganin wire and the second bronze medal conduction cooling bone
Insulated between frame, to play a part of high-voltage isolating, first voltage measurement is with manganin wire, second voltage measurement copper-manganese
Line, temperature survey manganin wire and high-temperature superconductive magnet system are in high voltage end, the first bronze medal conduction cooling skeleton, the second bronze medal conduction cooling bone
Frame and the conduction other parts that are included of cooling refrigeration system are all in low-voltage end, by setting optical fiber and paired optical fiber turns
Parallel operation, realizes the conversion between electric signal and optical signal, and by the transmission of optical signal, also play the work of high-voltage isolating
With the first optic fiber converter, the 3rd optic fiber converter, the 5th optic fiber converter and the first digital voltmeter of upstream, second
Digital voltmeter and temperature transmitter part are high voltage end, and the second optic fiber converter, the 4th optic fiber converter, six fiberses turn
Parallel operation and the computer in downstream are in low-voltage end, and these structures ensure that the safety of the temperature monitoring under high voltage environment
Property.
The on-line monitoring of high-temperature superconducting magnet of the present invention suitable for high voltage, high-intensity magnetic field, under Conduction At Low Temperature cooling condition.
The present invention can quickly, directly, inside the accurate high-temperature superconducting magnet under high voltage, high-intensity magnetic field, conduction cooling condition
High-temperature superconductor band on temperature, electric current, voltage is monitored, and ensures to introduce outer because of the installation of monitoring system
Portion's heat.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of the general structure of the on-line monitoring system of high-temperature superconducting magnet of the present invention, wherein aobvious
Show high-temperature superconducting magnet device for detecting temperature, the voltage monitor under high voltage, high-intensity magnetic field, Conduction At Low Temperature cooling condition
With the connection configuring condition of current monitoring device.
Fig. 2 be the present invention superconducting magnet part front view, that is, the high-temperature superconductive magnet system in Fig. 1 amplification
Figure, shows between the mounting means and current feed, voltage measurement line and high-temperature superconductor band of temperature sensor
Connection.
Fig. 3 is the side view of the installation situation of the temperature sensor of the present invention, wherein showing TEMP from side
The mounting means of device.
Embodiment
The detailed description present invention is further illustrated below in conjunction with the drawings and specific embodiments.
The on-line monitoring system of the shown high-temperature superconducting magnets for the present invention of Fig. 1~Fig. 3.
Shown in Fig. 1, on-line monitoring system of the present invention includes：
1) high-temperature superconductive magnet system 6, the high-temperature superconductive magnet system 6 includes：High-temperature superconductor band 1, conduction cooling
Superconducting magnet framework 2, the first current feed 21 and the second current feed 21 '；The high-temperature superconductor band 1 is wound on the conduction
On cooling superconducting magnets skeleton 2；One end of the first described current feed 21 and first termination of the high-temperature superconductor band 1
It is connected to each other by welding, the other end of the first described current feed 21 is connected with the first end of external power supply；Described
One end of second current feed 21 ' and second termination of the high-temperature superconductor band 1 are connected to each other by welding, and described
The other end of two current feeds 21 ' is connected with the second end of external power supply；
First current feed 21 and second current feed 21 ' typically use high current low-temperature superconducting lead, are
Known term in the art, the skilled artisan will appreciate that its implication, it can transmit larger current to high temperature
Superconducting magnet；
2) conduction cooling refrigeration system, the conduction cooling refrigeration system includes：Cryocooler cold head 10, copper conduction cooling terminal pad
9th, the first bronze medal conduction cooling skeleton 8 " and the second bronze medal conduction cooling skeleton 8；The cryocooler cold head 10 is connected with the copper conduction cooling terminal pad 9；
One end of the first bronze medal conduction cooling skeleton 8 " and one end of the second bronze medal conduction cooling skeleton 8 respectively with the copper conduction cooling terminal pad 9
Connection, the first bronze medal conduction cooling skeleton 8 " and the second bronze medal conduction cooling skeleton 8 all are used to enter the high-temperature superconductive magnet system 6
Row conduction cooling；
3) cooled cryostat system, as shown in figure 1, the cooled cryostat system includes：Cooled cryostat 13 and cooled cryostat lid
Plate 12；Described high-temperature superconductor band 1, conduction cooling superconducting magnet skeleton 2, cryocooler cold head 10, copper conduction cooling terminal pad 9,
One bronze medal conduction cooling skeleton 8 " and the second bronze medal conduction cooling skeleton 8 are placed in described cooled cryostat 13；Described cooled cryostat cover plate 12 covers
Cover in the opening of the cooled cryostat 13, form vacuum seal structure；The first described current feed 21 and the second electric current draw
One end that line 21 ' is connected with described high-temperature superconductor band 1, in described cooled cryostat 13, the other end passes through described
Cooled cryostat cover plate 12 extend to outside described cooled cryostat 13, and be connected with external power supply；
4) test device,
The test device includes：
A) computer 18, for gathering, showing, analyze and process signal；；
B) current testing device, the current testing device includes：
Current sensor 22, the current sensor 22 is enclosed on the periphery of first current feed 21, the electric current
Sensor 22 is used to detect the current value flowed through on the high-temperature superconductor band 1, current sensor 22 described in actual use
It is battery powered or is powered with insulating power supply；
First digital voltmeter 23, first digital voltmeter 23 is electrically connected by signal wire with the current sensor 22
Connect, first digital voltmeter 23 is used to detect the output voltage signal on the current sensor 22, in actual use
First digital voltmeter 23 is battery powered or powered with insulating power supply, it is possible to the method for adding screened room, to protect
The accuracy of test data under the conditions of card high-intensity magnetic field；
First optic fiber converter 15 ', first optic fiber converter 15 ' passes through signal wire and first digital voltmeter
23 electrical connections, first optic fiber converter 15 ' is used to convert electrical signals into optical signal, the first light described in actual use
Fine converter 15 ' is also to be battery powered or powered with insulating power supply, it is possible to the method for adding screened room, to ensure strong magnetic
The accuracy of test data under field condition；
First optical fiber 16 ', one end of first optical fiber 16 ' and the light connects of the first optic fiber converter 15 ', described the
One optical fiber 16 ' is used for the transmission into traveling optical signal；
Second optic fiber converter 17 ', the other end of first optical fiber 16 ' connects with the light of the second optic fiber converter 17 '
Connect, second optic fiber converter 17 ' is used to optical signal being then converted to electric signal, described the first optic fiber converter 15 ', the
One optical fiber 16 ', the second optic fiber converter 17 ' realize the transmission of optical signal, and high voltage is then served by the transmission of optical signal
The effect of isolation, and because Optical Fiber Transmission distance then can be changed the second optical fiber by optical fiber transmission up to tens kilometers
Device 17 ' and upstream device are positioned over the place away from measured signal, and the computer 18 passes through signal wire and second optical fiber
Converter 17 ' is electrically connected, for the electric signal come by second optic fiber converter 17 ' is transformed to be acquired, shown, is divided
Analysis and processing；
C) voltage test device, the voltage test device includes：
First voltage measurement manganin wire 5 ', to the direction away from termination on the high-temperature superconductor band 1, distance is described
It is wide that the pad of 1 first termination of high-temperature superconductor band and first current feed 21 is three times in the high-temperature superconductor band 1
The distance of degree is spot welded one end of the first voltage measurement manganin wire 5 '；
Second voltage measurement manganin wire 5 ", to the direction away from termination on the high-temperature superconductor band 1, distance is described
It is wide that the pad of 1 second termination of high-temperature superconductor band and second current feed 21 ' is three times in the high-temperature superconductor band 1
The distance of degree is spot welded one end of the second voltage measurement manganin wire 5 "；
First thermally conductive insulating layer 7 ", first thermally conductive insulating layer 7 " is coated on the periphery of the first bronze medal conduction cooling skeleton 8 "
On, the first voltage measurement is with manganin wire 5 ' and second voltage measurement with the center section of manganin wire 5 " by substantially spiral shape
It is wrapped in first thermally conductive insulating layer 7 ", first thermally conductive insulating layer 7 " is heat conductivility extraordinary insulation shape
Layer, the first voltage measurement measures the structure that multiple twin is proposed with manganin wire 5 " with manganin wire 5 ' and the second voltage,
Interference to reduce signal；
Second digital voltmeter 24, the first voltage measurement manganin wire 5 ' and the second voltage measurement manganin wire
5 " the other end is electrically connected with second digital voltmeter 24 respectively, the second digital voltmeter 24 described in actual use by
Battery is powered or powered with insulating power supply, it is possible to the method for adding screened room, to ensure test data under the conditions of high-intensity magnetic field
Accuracy；
3rd optic fiber converter 15 ", the 3rd optic fiber converter 15 " passes through signal wire and second digital voltmeter
24 electrical connections, the 3rd optic fiber converter 15 " is used to convert electrical signals into optical signal, the 3rd light described in actual use
Fine converter 15 " is also to be battery powered or powered with insulating power supply, it is possible to the method for adding screened room, to ensure strong magnetic
The accuracy of test data under field condition；
Second optical fiber 16 ", one end of second optical fiber 16 " and the light connects of the 3rd optic fiber converter 15 ", described the
Two optical fiber 16 " are used for the transmission into traveling optical signal；
4th optic fiber converter 17 ", the other end of second optical fiber 16 " connects with the light of the 4th optic fiber converter 17 "
Connect, the 4th optic fiber converter 17 " is used to optical signal being then converted to electric signal, described the 3rd optic fiber converter 15 ", the
Two optical fiber 16 ", the 4th optic fiber converter 17 " realize the transmission of optical signal, and high voltage is then served by the transmission of optical signal
The effect of isolation, the computer 18 is electrically connected by signal wire with the 4th optic fiber converter 17 ", for by described
The transformed next electric signal of four optic fiber converter 17 " is acquired, shows, analyzes and handled.
D) temperature testing device, the temperature testing device includes：
Carburizing ceramic temperature sensor 4 installed in the surface of the high-temperature superconductor band 1, in the high-temperature superconductor band
1 coiling is finished and installed after the carburizing ceramic temperature sensor 4, with 3 pairs of conduction cooling superconducting magnetics of epoxy hardener
Body skeleton 2, the high-temperature superconductor band 1 and the carburizing ceramic temperature sensor 4 carry out dipping solidification, thus formed one it is whole
Body, Fig. 1 is the scheme of installation of the carbon ceramics temperature sensor 4, specific mounting means such as Fig. 2 and Fig. 3；
Temperature survey manganin wire 5, as depicted in figs. 1 and 2, one end of the temperature survey manganin wire 5 ooze with described
The lead-out wire of carbon ceramics temperature sensor 4 is connected to each other by welding, and the measurement manganin wire 5 is 4, that is, uses four leads
Method is connected with the carburizing ceramic temperature sensor 4, it is possible to select non-double-twisted structure or double-twisted structure, it is proposed that select multiple twin knot
Structure reduces the interference of signal, temperature survey described herein manganin wire 5 and first voltage the measurement manganin wire 5 ' and institute
State second voltage measurement and be unable to juxtaposition respectively with manganin wire 5 ", Fig. 1 and Fig. 2 are only schematic diagram.
Second thermally conductive insulating layer 7, second thermally conductive insulating layer 7 is coated on the periphery of the second bronze medal conduction cooling skeleton 8,
The center section of the temperature survey manganin wire 5 is wrapped in second thermally conductive insulating layer 7 with substantially spiral-shaped, described
Second thermally conductive insulating layer 7 is the extraordinary insulating barrier of heat conductivility；
Temperature transmitter 14, the other end and the temperature transmitter 14 of the temperature survey manganin wire 5 are electrically connected,
Temperature transmitter 14 described in actual use is battery powered or powered with insulating power supply, it is possible to the side for adding screened room
Method, to ensure the accuracy of test data under the conditions of high-intensity magnetic field；
5th optic fiber converter 15, the 5th optic fiber converter 15 is electrically connected by signal wire with the temperature transmitter 14
Connect, the 5th optic fiber converter 15 is used to convert electrical signals into optical signal, the 5th optical fiber conversion described in actual use
Device 15 is battery powered or powered with insulating power supply, it is possible to the method for adding screened room, to ensure survey under the conditions of high-intensity magnetic field
Try the accuracy of data；
3rd optical fiber 16, one end and the light connects of the 5th optic fiber converter 15, the described 3rd of the 3rd optical fiber 16
Optical fiber 16 is used for the transmission into traveling optical signal；
Six fiberses converter 17, the other end of the 3rd optical fiber 16 and the light connects of six fiberses converter 17,
The six fiberses converter 17 is used to optical signal being then converted to electric signal, described the 5th optic fiber converter 15, the 3rd light
Fibre 16, six fiberses converter 17 realize the transmission of optical signal, and high-voltage isolating is then served by the transmission of optical signal
Effect, the computer 18 is electrically connected by signal wire with the six fiberses converter 17, for by the six fiberses
The transformed next electric signal of converter 17 is acquired, shows, analyzes and handled；
Copper sheet 19 is crimped, as shown in Figures 2 and 3, the center section of the crimping copper sheet 19 is by the ceramic temperature of the carburizing
Sensor 4 is pressed directly against the surface of the high-temperature superconductor band 1, and the two ends of the crimping copper sheet 19 are by welding by directly solid
Surely the surface of the high-temperature superconductor band 1 is arrived, the carburizing ceramic temperature sensor 4 is fastened on into the hts band
The surface of material 1；
Low-temperature high-vacuum fat 20, as shown in figure 3, the low-temperature high-vacuum fat 20 be filled in it is described crimping copper sheet 19 with it is described
In gap between carburizing ceramic temperature sensor 4 and the high-temperature superconductor band 1, for aiding in fixing the carburizing ceramics temperature
Spend sensor 4 and play conductive force.
The present invention is provided with crimping copper sheet 19, and is filled with low-temperature high-vacuum fat 20, is to ensure to make carburizing ceramics
Temperature sensor 4 is fitted tightly over the surface of high-temperature superconductor band 1, to ensure carburizing ceramic temperature sensor 4 and be tested
The uniformity of temperature between high-temperature superconductor band 1, so as to directly, accurately enter to the temperature on high-temperature superconductor band 1
Row is accurately measured.
The first voltage measurement is with manganin wire 5 ' and second voltage measurement manganin wire 5 " center section by substantially
Be wrapped in spiral-shapedly in the first thermally conductive insulating layer 7 ", and temperature survey with the center section of manganin wire 5 with substantially spiral
Shape is wrapped in the second thermally conductive insulating layer 7.This aspect is heat sink equivalent to being provided with, it is described it is heat sink be that first bronze medal is led
The combination of cold skeleton 8 " and the first thermally conductive insulating layer 7 ", and the second bronze medal conduction cooling skeleton 8 and the second thermally conductive insulating layer 7 combination,
Heat exchange can be promoted, on the other hand can prevent lead stress from breaking.Specifically, for conduction cooling high temperature superconducting magnetic
Body, not only must take into consideration influence of the measurement line conduction heat to measurement accuracy, also to reduce and be introduced from outside into by measuring line as far as possible
Heat, if the heat being introduced from outside into is excessive, it is possible to cause conduction cooling refrigeration system overall efficiency decline so that
High-temperature superconducting magnet can not be cooled to predetermined temperature, be also possible to trigger high-temperature superconductor band for local thermal conductivity points in addition
Local temperature rise, the danger that increase high-temperature superconductor band is blown, so, on the one hand need to use low thermal conductivity, resistivity high
On the one hand manganin wire is had in measurement with setting heat sink on manganin wire as measurement lead, promote measurement manganin wire with
Heat sink abundant carry out heat exchange, it is to avoid the importing of outside heat, prevents from measuring the influence of line conduction heat.It is heat sink to must be placed in conduction cooling
The upstream end in path, as far as possible away from high-temperature superconducting magnet, ensures that conduction to high-temperature superconductor band and the ceramic temperature of carburizing is passed as far as possible
Thermic load on sensor is 0.First thermally conductive insulating layer 7 " and the second heat conduction are fixed on substantially spiral-shaped canoe
On insulating barrier 7, then first voltage measurement manganin wire 5 ' and second voltage measurement manganin wire 5 " and temperature survey are added
With the margin of safety of manganin wire 5, it can effectively prevent from measuring the danger that line stress is broken caused by expanding with heat and contract with cold.Described
" substantially spiral-shaped " refers to first voltage measurement manganin wire 5 ' and second voltage measurement manganin wire 5 " and temperature survey
Can be strict spiral-shaped or slightly offset from strict spiral-shaped with the extension path of manganin wire 5, as long as full
Sufficient measurement is not overlapped with and is wrapped in thermally conductive insulating layer with manganin wire, and is extended to separately from the adjacent one end of thermally conductive insulating layer
Outer adjacent one end.
Further, first thermally conductive insulating layer 7 " and second thermally conductive insulating layer 7 are adulterated by epoxy resin nitrogenizes
The mixture of aluminium powder makes.Aluminium nitride powder is that a kind of thermal conductivity is high, thermal coefficient of expansion is small, the good ceramics of electrical insulation capability
First voltage not only can effectively be measured and used by material, the mixture made of doped aluminum nitride powder in the epoxy
Manganin wire 5 ' and second voltage are measured with the heat derives on manganin wire 5 " to the first bronze medal conduction cooling skeleton 8 ", and by temperature
Measurement is spent with the heat derives on manganin wire 5 to the second bronze medal conduction cooling skeleton 8, and effectively first voltage can also be measured
Used with manganin wire 5 ' and second voltage measurement between manganin wire 5 " and the first bronze medal conduction cooling skeleton 8 ", and temperature survey manganin wire
5 and second are insulated between bronze medal conduction cooling skeleton 8, to play a part of high-voltage isolating, described first voltage measurement manganese
Copper cash 5 ', second voltage measurement manganin wire 5 ", temperature survey manganin wire 5 and high-temperature superconductive magnet system 6 are in high voltage
End, the other parts that the first bronze medal conduction cooling skeleton 8 ", the second bronze medal conduction cooling skeleton 8 and conduction cooling refrigeration system are included are all in low
Voltage end.
As shown in figure 1, being sealed and installed with the first vacuum transition plug 11 " and the second vacuum in the cooled cryostat cover plate 12
Intermediate plug 11, the first voltage measurement seals fixation respectively with manganin wire 5 ' and second voltage measurement manganin wire 5 "
Onto the first vacuum transition plug 11 ", and pass through the first vacuum transition plug 11 " and second digital voltage
Table 24 is electrically connected, and the temperature survey manganin wire 5 is sealingly clamped to the second vacuum transition plug 11 and by described
Second vacuum transition plug 11 and the temperature transmitter 14 are electrically connected.The first voltage measurement manganin wire 5 ' and described the
Two voltage measurements are sealingly clamped on the first vacuum transition plug 11 " respectively with manganin wire 5 ", and pass through described first
Vacuum transition plug 11 " and second digital voltmeter 24 are electrically connected, i.e. in the present invention, and the first voltage measurement is used
The two ends of manganin wire 5 ' and second voltage measurement with one end of manganin wire 5 " respectively with high-temperature superconductor band 1 are welded to one
Rise；And then the first voltage measurement measures the ensuing pars intermedia with manganin wire 5 " with manganin wire 5 ' and the second voltage
Divide and led described in being wrapped in the first thermally conductive insulating layer 7 ", first thermally conductive insulating layer 7 " is coated on the first bronze medal conduction cooling bone
On the periphery of frame (8 ")；However, the first voltage measurement manganin wire 5 ' and second voltage measurement manganin wire 5 " point
It is not sealingly clamped on the first vacuum transition plug 11 ", it is that welding or epoxy impregnation are fixed that fixing means is sealed herein,
The first vacuum transition plug 11 " is sealingly mounted in the cooled cryostat cover plate 12；Afterwards, the first voltage measurement is used
The other end and second digital voltmeter 24 of manganin wire 5 ' and the second voltage measurement manganin wire 5 " are electrically connected；It is described
Temperature transmitter 14 is electrically connected with the second vacuum transition plug 11, and the temperature test in the present invention can be entered by four leads methods
OK.I.e., in the present invention, temperature survey one end of manganin wire 5 and the lead-out wire of the carburizing ceramic temperature sensor 4
It is welded together；And then with the ensuing center section of manganin wire 5 to be wrapped in second heat conduction exhausted for the temperature survey
In edge layer 7, second thermally conductive insulating layer 7 is coated on the periphery of the second bronze medal conduction cooling skeleton 8；Then, the temperature is surveyed
Amount manganin wire 5 is sealingly clamped on the second vacuum transition plug 11, and it is welding or epoxy that fixing means is sealed herein
Dipping is fixed, and the second vacuum transition plug 11 is also to be sealingly mounted in the cooled cryostat cover plate 12；Afterwards, the temperature
The other end and the temperature transmitter 14 of degree measurement manganin wire 5 are electrically connected；The high-temperature superconductor band 1, conduction cooling are super
Magnetic conductor skeleton 2, carburizing ceramic temperature sensor 4, crimping copper sheet 19, low-temperature high-vacuum fat 20, the cryocooler cold head 10, institute
State copper conduction cooling terminal pad 9, first thermally conductive insulating layer 7 ", second thermally conductive insulating layer 7, the first bronze medal conduction cooling skeleton 8 "
And the second bronze medal conduction cooling skeleton 8 is contained in cooled cryostat 13, and the current sensor 22, first digital voltage
Table 23, second digital voltmeter 24, the temperature transmitter 14 and first optic fiber converter 15 ', described first
Optical fiber 16 ', second optic fiber converter 17 ', the 3rd optic fiber converter 15 ", second optical fiber 16 ", the described 4th
Optic fiber converter 17 ", the 5th optic fiber converter 15, the 3rd optical fiber 16, the six fiberses converter 17 and described
Computer 18 is then located at outside the cooled cryostat 13.
Low-temperature high-vacuum fat is known term in the art, the skilled artisan will appreciate that its implication, it
The cold of refrigeration system can be passed to quickly to superconducting magnet, cryostat, temperature sensor or other needs quickly to obtain
The system of low temperature, and fixation can be played.
Epoxy hardener 3 in the present invention is made up of epoxy resin.
Cooled cryostat is known term in the art, the skilled artisan will appreciate that its implication, it is to use
In a kind of known container in the art for maintaining low temperature.
Claims (3)
1. a kind of on-line monitoring system of high-temperature superconducting magnet, including：
1) high-temperature superconductive magnet system (6), the high-temperature superconductive magnet system (6) includes：High-temperature superconductor band (1), conduction are cold
But superconducting magnet framework (2), the first current feed (21) and the second current feed (21 ')；High-temperature superconductor band (1) coiling
On the conduction cooling superconducting magnet skeleton (2)；One end of described the first current feed (21) and the hts band
First termination of material (1) is by being welded to connect, the other end and the first end of external power supply of described the first current feed (21)
It is connected；One end of the second described current feed (21 ') and the second termination of the high-temperature superconductor band (1) pass through the company of welding
Connect, the other end of second current feed (21 ') is connected with the second end of external power supply；
2) conduction cooling refrigeration system, the conduction cooling refrigeration system includes：Cryocooler cold head (10), copper conduction cooling terminal pad
(9), the first bronze medal conduction cooling skeleton (8 ") and the second bronze medal conduction cooling skeleton (8)；The cryocooler cold head (10) is connected with the copper conduction cooling
Disk (9) is connected；One end of the first bronze medal conduction cooling skeleton (8 ") and one end of the second bronze medal conduction cooling skeleton (8) respectively with it is described
Copper conduction cooling terminal pad (9) is connected, and the first bronze medal conduction cooling skeleton (8 ") and the second bronze medal conduction cooling skeleton (8) are all used for described
High-temperature superconductive magnet system (6) carries out conduction cooling；
3) cooled cryostat system, the cooled cryostat system includes：Cooled cryostat (13) and cooled cryostat cover plate (12)；Described
High-temperature superconductor band (1), conduction cooling superconducting magnet skeleton (2), cryocooler cold head (10), copper conduction cooling terminal pad (9), the first bronze medal
Conduction cooling skeleton (8 ") and the second bronze medal conduction cooling skeleton (8) are placed in described cooled cryostat (13)；Described cooled cryostat cover plate
(12) in the opening for being covered in the cooled cryostat (13), vacuum seal structure is formed；Described the first current feed (21) and
One end that second current feed (21 ') is connected with described high-temperature superconductor band (1) is located in described cooled cryostat (13),
It is another that described the first current feed (21) and the second current feed (21 ') are not connected with described high-temperature superconductor band (1)
One end extends to described cooled cryostat (13) outside by described cooled cryostat cover plate (12), and is connected with external power supply；
4) test device；
Characterized in that, the test device includes：
A) computer (18)；
B) current testing device, the current testing device includes：
Current sensor (22), the current sensor (22) is sleeved on the periphery of first current feed (21), described
Current sensor (22) is used to detect the current value flowed through on the high-temperature superconductor band (1)；
First digital voltmeter (23), first digital voltmeter (23) passes through signal wire and the current sensor (22) electricity
Connection, first digital voltmeter (23) is used to detect the output voltage signal on the current sensor (22)；
First optic fiber converter (15 '), first optic fiber converter (15 ') passes through signal wire and first digital voltmeter
(23) electrically connect, first optic fiber converter (15 ') is used to convert electrical signals into optical signal；
First optical fiber (16 '), one end of first optical fiber (16 ') and the first optic fiber converter (15 ') light connects, it is described
First optical fiber (16 ') is used for the transmission into traveling optical signal；
Second optic fiber converter (17 '), the other end of first optical fiber (16 ') and the second optic fiber converter (17 ') light
Connection, second optic fiber converter (17 ') is used to optical signal being then converted to electric signal, and the computer (18) passes through signal
Line is electrically connected with second optic fiber converter (17 '), for by second optic fiber converter (17 ') it is transformed Lai electricity
Signal is acquired, shows, analyzes and handled；
C) voltage test device, the voltage test device includes：
First voltage measurement is with manganin wire (5 '), to the direction away from termination on the high-temperature superconductor band (1), described in distance
The termination of high-temperature superconductor band (1) first and the pad of first current feed (21) are three times in the high-temperature superconductor band
(1) range points of width, weld one end of the first voltage measurement manganin wire (5 ')；
Second voltage measurement is with manganin wire (5 "), to the direction away from termination on the high-temperature superconductor band (1), described in distance
(1) second termination of high-temperature superconductor band and the pad of second current feed (21 ') are three times in the hts band
The range points of material (1) width, weld one end of the second voltage measurement manganin wire (5 ")；
First thermally conductive insulating layer (7 "), first thermally conductive insulating layer (7 ") is coated on the outer of the first bronze medal conduction cooling skeleton (8 ")
Zhou Shang, the first voltage measurement is with manganin wire (5 ') and second voltage measurement with manganin wire (5 ") center section with substantially
It is spiral-shaped to be wrapped on first thermally conductive insulating layer (7 ")；
Second digital voltmeter (24), the first voltage measurement manganin wire (5 ') and the second voltage measurement manganin wire
The other end of (5 ") is electrically connected with second digital voltmeter (24) respectively；
3rd optic fiber converter (15 "), the 3rd optic fiber converter (15 ") passes through signal wire and second digital voltmeter
(24) electrically connect, the 3rd optic fiber converter (15 ") is used to convert electrical signals into optical signal；
Second optical fiber (16 "), one end of second optical fiber (16 ") and described 3rd optic fiber converter (15 ") light connects, it is described
Second optical fiber (16 ") is used for the transmission into traveling optical signal；
4th optic fiber converter (17 "), the other end of second optical fiber (16 ") and described 4th optic fiber converter (17 ") light
Connection, the 4th optic fiber converter (17 ") is used to optical signal being then converted to electric signal, and the computer (18) passes through signal
Line is electrically connected with the 4th optic fiber converter (17 "), for by the 4th optic fiber converter (17 ") change Lai telecommunications
Number it is acquired, shows, analyzes and handles；
D) test device also includes temperature testing device,
The temperature testing device includes：
Carburizing ceramic temperature sensor (4) installed in the surface of the high-temperature superconductor band (1), the centre of crimping copper sheet (19)
The carburizing ceramic temperature sensor (4) is pressed directly against the surface of the high-temperature superconductor band (1), the crimping copper by part
The two ends of piece (19) are directly anchored to the surface of the high-temperature superconductor band (1) by welding, to carburizing ceramics are warm
Degree sensor (4) is fastened on the surface of the high-temperature superconductor band (1)；Low-temperature high-vacuum fat (20) is filled in the crimping copper sheet
(19) in the gap between the carburizing ceramic temperature sensor (4) and the high-temperature superconductor band (1), for aiding in fixing
The carburizing ceramic temperature sensor (4), and play conductive force；Finish in high-temperature superconductor band (1) coiling and
After the carburizing ceramic temperature sensor (4) is installed, with epoxy hardener (3) to the conduction cooling superconducting magnet skeleton (2),
The high-temperature superconductor band (1) and the carburizing ceramic temperature sensor (4) carry out dipping solidification；
Temperature survey manganin wire (5), the one end and the carburizing ceramic temperature sensor of the temperature survey with manganin wire (5)
(4) lead-out wire is connected to each other by welding；
The temperature survey is used with manganin wire (5) and first voltage measurement manganin wire (5 ') and second voltage measurement
Manganin wire (5 ") is unable to juxtaposition respectively；
Second thermally conductive insulating layer (7), second thermally conductive insulating layer (7) is coated on the periphery of the second bronze medal conduction cooling skeleton (8)
On, the center section of the temperature survey manganin wire (5) is wrapped in second thermally conductive insulating layer (7) with substantially spiral-shaped
On；
Temperature transmitter (14), the temperature survey is electrically connected with the other end and the temperature transmitter (14) of manganin wire (5)；
5th optic fiber converter (15), the 5th optic fiber converter (15) passes through signal wire and the temperature transmitter (14) electricity
Connection, the 5th optic fiber converter (15) is used to convert electrical signals into optical signal；
3rd optical fiber (16), one end of the 3rd optical fiber (16) and the 5th optic fiber converter (15) light connects, described the
Three optical fiber (16) are used for the transmission into traveling optical signal；
Six fiberses converter (17), the other end of the 3rd optical fiber (16) connects with six fiberses converter (17) light
Connect, the six fiberses converter (17) is used to optical signal being then converted to electric signal, and the computer (18) passes through signal wire
Electrically connected with the six fiberses converter (17), for by the six fiberses converter (17) it is transformed Lai electric signal
It is acquired, show, analyze and handles；
Described on-line monitoring system can not introduce outside heat.
2. the on-line monitoring system of high-temperature superconducting magnet according to claim 1, it is characterised in that first heat conduction is exhausted
Edge layer (7 ") and second thermally conductive insulating layer (7) make by the mixture of epoxy resin doped aluminum nitride powder.
3. the on-line monitoring system of high-temperature superconducting magnet according to claim 1, it is characterised in that the cooled cryostat lid
The first vacuum transition plug (11 ") and the second vacuum transition plug (11) are sealed and installed with plate (12), the first voltage is surveyed
Amount is sealingly clamped to first vacuum transition with manganin wire (5 ") with manganin wire (5 ') and second voltage measurement and inserted respectively
On head (11 "), and electrically connected by the first vacuum transition plug (11 ") and second digital voltmeter (24), institute
Temperature survey is stated to be sealingly clamped on the second vacuum transition plug (11) with manganin wire (5), and it is true by described second
Empty intermediate plug (11) and the temperature transmitter (14) electrical connection.
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| CN106019004A (en) * | 2015-06-10 | 2016-10-12 | 北京斯派克科技发展有限公司 | Superconducting magnet monitor |
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| CN105510746B (en) * | 2015-12-28 | 2018-07-31 | 云南电网有限责任公司电力科学研究院 | A kind of high-temperature superconductor band performance testing device and application method |
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| CN111157926B (en) * | 2020-01-03 | 2021-06-04 | 北京交通大学 | Dewar device for high-temperature superconducting magnet quench detection experiment |
| CN111413567B (en) * | 2020-04-21 | 2021-08-24 | 清华大学 | System and method for testing current-carrying characteristics of superconducting tape |
| CN112484874B (en) * | 2020-10-27 | 2022-02-11 | 西安电子科技大学 | Temperature sensing structure and temperature detection method for conduction cooling high-temperature superconducting cable |
| CN112197818A (en) * | 2020-12-02 | 2021-01-08 | 江西联创光电超导应用有限公司 | Superconducting magnet performance detection equipment and method |
| CN112198835A (en) * | 2020-12-02 | 2021-01-08 | 江西联创光电超导应用有限公司 | Method and system for detecting operating data of high-temperature superconducting magnet |
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