25 results about "Superconductor classification" patented technology

The invention provides a superconducting quench detection system and method, and the system comprises an OFDR signal collection module which is used for obtaining an optical frequency domain reflection signal and transmitting the optical frequency domain reflection signal to a data fusion and preprocessing module; the voltage signal acquisition module is used for acquiring and transmitting a voltage signal; the data fusion and preprocessing module is used for fusing and preprocessing the received optical frequency domain reflection signal and the voltage signal and outputting a processing result; and the CNN model training and recognition module is used for constructing and training a CNN model for quenching signal classification and recognition based on the processing result of the data fusion and preprocessing module, and outputting a detection result. According to the superconducting quench detection system based on optical frequency domain reflection, the convolutional neural network and voltage signal fusion, the advantage of high-precision distributed measurement of the OFDR technology, the powerful feature extraction and classification capability of the CNN and the characteristic that the voltage signal directly reflects the state change of the superconductor are comprehensively utilized, and faster and more accurate detection of superconducting quench is achieved.

The invention belongs to the technical field of quantum functional materials, and particularly relates to an FCC structure Mo-based medium-entropy carbide superconducting material and a preparation method thereof. According to the method, Mo, Ir and C are ground and pressed into blocks according to the stoichiometric ratio, the Mo3Ir2C polycrystalline block of a face-centered cubic structure is synthesized in one step through electric arc melting, the superconducting transition temperature of the Mo3Ir2C polycrystalline block is 3.33 K, and the upper critical field of the Mo3Ir2C polycrystalline block is 2.53 T. Meanwhile, Pt is further used for partially replacing Ir to prepare Mo3IrPtC, the valence electron concentration is increased to 6.83 from 6.67, the superconducting performance is further optimized, the transformation temperature reaches 3.50 K, and the upper critical field is increased to 4.05 T. The material is a new member of the superconducting family, provides a platform for exploring the superconducting performance of the middle / high-entropy carbide in the face-centered cubic structure, can be used in the fields of electric power communication and the like, enriches related researches, and promotes the practical application of the middle / high-entropy superconductor.

A high-temperature superconducting qubit implements a quantum mechanical two-level system. The high-temperature superconducting qubit comprises a first superconductor, a second superconductor, and an overlap region. The first superconductor comprises a first high-temperature superconductor material. The second superconductor comprises a second high-temperature superconductor material. In the overlap region, at least a first section of the first surface and at least a second section of the second surface overlap, the first section and the second section are arranged in parallel at a distance corresponding to a predefined distance, and the first orientation and the second orientation are arranged with an angle corresponding to a predefined angle. The high-temperature superconducting qubit comprises a Josephson junction between the first high-temperature superconductor material and the second high-temperature superconductor material. The Josephson junction provides the quantum mechanical two-level system of the high-temperature superconducting qubit.

There is a superconducting article that includes a superconducting film comprising a substrate, one or more buffer layers, and a high temperature superconducting (HTS) layer. The superconducting layer may be comprised of the chemical composition REBa2Cu3O7-x, where RE is one or more rare earth elements, for example: Y, La, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. The superconductor layer is produced using Photo-Assisted Metal Organic Chemical Vapor Deposition (PAMOCVD) and contains non-superconducting nanoparticles. The nanoparticles are substantially provided in the a-b plane and naturally oriented. The non-superconducting nanoparticles provide flux pinning centers that improve the critical current properties of the superconducting film.

A stellarator comprising a non-planar magnetic field coil with a cable as well as a method for providing a cable for a non-planar magnetic field coil in a stellarator is presented. The cable comprises an inner section (100) comprising multiple layers of superconductor material (200), the multiple layers of superconductor material (200) having a first orientation (210, 210a, 210b, 210c), an outer section (300) surrounding the inner section (100), the outer section (300) having a cross-section (310) with a second orientation (320, 320a, 320b, 320c), wherein the outer section (300) comprises a first conductive material (410) which fixes the first orientation (210, 210a, 210b, 210c), wherein the first orientation (210, 210a, 210b, 210c) changes along a length (50) of the cable (40) with respect to the second orientation (320, 320a, 320b, 320c).

A superconductor device disclosed includes a plurality of superconductor layers and dielectric layers interleaved with the plurality of superconductor layers with moat regions that extend through the plurality of superconductor layers and the dielectric layers and a composite material ground plane that is one of the superconductor layers of the plurality of superconductor layers, the composite ground plane comprises first regions formed of a first superconductor material, and second regions formed of a second superconductor material having a second superconducting critical temperature higher than a first superconducting critical temperature of the first superconductor material, such that at least one flux vortex caused by cryogenic cooling can be removed from the second region during cooling below the second critical temperature and above the first critical temperature to the first regions, and removed from the first regions to the moat regions upon cooling below the first critical temperature.

The invention discloses a hydrogen-based superconducting material Na2GaCuH6 with a double perovskite structure under normal pressure and a preparation method of the hydrogen-based superconducting material Na2GaCuH6. The material has an Fm-3m space group, the lattice constant is calculated and predicted through the first principle, and the material has the superconducting transition temperature of 42.04 K under the normal pressure condition. The material is composed of four common elements of Na, Ga, Cu and H, and the cost is low; the double perovskite structure is stable in thermodynamics and dynamics under normal pressure; the electro-acoustic coupling constant lambda is approximately equal to 0.98, and medium-intensity electro-acoustic coupling is achieved. Compared with an existing high-voltage hydride superconductor, the material can work without high-voltage equipment, and the preparation and application cost is greatly reduced; compared with a traditional normal-pressure superconductor, the superconductor has a higher Tc value. The material can be applied to the fields of low-temperature superconducting devices, superconducting magnets, quantum computing and the like, and has important scientific research value and application prospect.

The present specification describes a cryogenic temperature sensor comprising: a sample of superconductor material; a current source configured to pass a current through the sample of superconductor material; and a voltage sensor configured to sense a voltage across the superconductor material sample. The temperature sensor further comprises a control unit configured to: control the current source to vary the current through the sample of superconductor material over time while the voltage sensor senses the voltage across the sample of superconductor material; detecting a change in the sensing voltage; and calculating the temperature of the superconductor material sample based on the detected current value at which the sensed voltage changes.

The present invention discloses a terminal box, which belongs to the technical field of fusion superconducting coils, and comprises: a first supporting mechanism; a second supporting mechanism is provided on one side of the first supporting mechanism, the first supporting mechanism is provided with a first mounting assembly for mounting a superconductor, and the second supporting mechanism is provided with a second mounting assembly for mounting a connecting terminal, and an operating space and a testing space acting on the terminal box are formed by the first mounting assembly and the second mounting assembly; the superconductor and the connecting terminal are supported and connected by the first supporting structure and the second supporting structure, so as to protect the pipelines and the connecting terminals of the superconductor and withstand the influence of gravity and electromagnetic force connected to the feeder system, and the first mounting assembly and the second mounting assembly form an operating space and a testing space, which are convenient for installing and testing the superconductor.

The invention relates to a symbol regression-based hydrogen-based superconductor critical transition temperature prediction method. Aiming at the problems of insufficient physical interpretability, limited generalization ability and the like of an existing hydrogen-based superconductor prediction method, the method innovatively introduces electronic state density integral characteristics near Fermi level, and constructs an explicit superconducting critical transition temperature prediction formula through a symbolic regression algorithm. By comprehensively considering the training of 343 samples and the fitting effect of 74 independent verification samples, the model shows excellent prediction precision (the training set RMSE is 20.15 K, and the verification set is 34.72 K), and is suitable for high-throughput screening of hydrogen-based superconducting materials.

A system for generating a magnetic field in one or more axes is provided. The system includes a primary electromagnet including a first coil having a first axis, a first secondary electromagnet including a second coil having a second axis, and a second secondary electromagnet including a third coil having a third axis. The first, second, and third axes are non-parallel, and the first, second, and third coils are formed of a superconductor. The system includes a cooling element configured to cool the first, second, and third coils below a critical temperature of the superconductor, and a power supply configured to provide power to the primary and secondary electromagnets.

The present disclosure relates to a deposition apparatus (100) for depositing a HTS material onto a first surface (11) of a substrate (10), the deposition apparatus comprising: - a deposition chamber (101) comprising side walls (111, 112); - a substrate transport system for transporting the substrate in the deposition chamber along one or more of the side walls; - a heating system for heating the substrate in the deposition chamber at a first temperature; - a precursor inlet (160) for delivering a gas flow (20) including an HTS material precursor into the deposition chamber; wherein the side walls of the deposition chamber are arranged in such a way that, when the substrate is transported along the one or more side walls of the deposition chamber, a first part (11A) of the first surface faces a second part (11B) of the first surface.

The invention discloses suspension model equipment for motion of a planet around the sun, and relates to the field of teaching model equipment. A magnetic field is formed through an orbit, so that a planetary model is suspended on the orbit according to the principle that a superconductor suspends in the magnetic field. Moreover, a metal sheet is arranged in the planet model, the interior of the metal sheet is arranged to be of a hollow structure, and the metal sheet is filled with liquid nitrogen, so that the metal sheet becomes a superconductor under the low-temperature condition, the planet model can be effectively prevented from rotating, and the motion of the planet around the sun can be displayed in a three-dimensional visualization mode. Therefore, the motion state and period between the sun and the planet can be well reflected.

A gas flow meter for all pressures, including fractions of an atmosphere, and for cryogenic temperature systems such as cryomodules for cooling superconducting radio frequency cavities in a particle accelerator. An accurate measurement is critical to determine the quality factor (Q0) of the superconducting cavities. The instrument head, including a superconducting material adjacent to an electric resistance heater, measures gas flow. The power in the heater is increased until the superconductor exhibits ‘normal’ conducting voltage (quench) while an electric current passes through it. The heater power required to drive the superconductor to quench is a function of the gas flow passing the instrument head. Digital control and readout of all critical elements are supplied by a digital control system interfacing to an analogue to digital, digital to analogue (AtoD DtoA) module.

The invention belongs to the technical field of quantum functional materials, and particularly relates to a medium-entropy carbide superconducting material and a preparation method thereof. The medium-entropy carbide superconductor Ta < 0.25 > Nb < 0.25 > Hf < 0.25 > Zr < 0.25 > C is synthesized through a spark plasma sintering method. The prepared medium-entropy carbide superconductor belongs to a single-phase rock salt face-centered cubic structure (Fm-3m) crystal, and shows type-II superconductivity, and the superconducting transition temperature (Tc) value is 4.9 K. Meanwhile, the medium-entropy carbide superconductor has robustness and stability under extreme acid and alkali conditions, can be used in the fields of electric power communication, transportation, medical treatment, high-energy physics, high-tech equipment, military equipment and the like, not only enriches the research content of the medium / high-entropy superconductor, but also is expected to promote the practical application of the medium / high-entropy superconductor.

A method of forming a superconducting device includes depositing a superconducting metal nitride layer over a substrate in a plasma processing chamber charged with a first inert gas including nitrogen gas and a different second inert gas. The depositing includes sputtering metal from a metal target using the second inert gas, the sputtered metal being provided to the substrate along with a portion of the nitrogen gas.

The invention relates to the technical field of superconductors, in particular to a Tc > 140K superconductor reverse design method and system based on gradient guidance, and the method comprises the steps: obtaining superconductive data, constructing a superconductive data set, obtaining a preliminary data set, carrying out the data cleaning, obtaining a cleaned data set, constructing a superconductive representation matrix, carrying out the training to obtain a training generation model and a training diffusion model, and carrying out the mapping. Performing random disturbance addition for multiple times to obtain a disturbance addition vector, calculating disturbance gradient estimation, updating the low-dimensional potential vector, obtaining an updated potential vector, obtaining a reconstruction sample, performing optimization to obtain a reconstruction optimization sample, performing critical temperature prediction, obtaining a reconstruction temperature and an updated temperature, and calculating a temperature absolute difference value; and obtaining an update temperature sequence, extracting an initial update temperature, determining a target update temperature, and determining a target temperature in the update temperature sequence. According to the method, the design and discovery of the high-critical-temperature superconducting material can be accelerated.

The invention discloses a superconductor quench detection method and system based on multi-sensor fusion and a medium, and relates to the technical field of superconductor quench detection, and the method comprises the steps: collecting multi-dimensional original data used for describing the operation state of a superconductor in a first set time range through a plurality of different types of arranged sensors; extracting key features based on the original data; the key features represent time sequence features of the evolution trend of the running state of the superconductor in the first set time range; inputting the key features into an LSTM network for processing, obtaining prediction features in a second set time range in the future, and outputting the quench probability of the superconductor based on the prediction features; based on the quench probability, quench risk level judgment is carried out, and based on the quench risk level, intervention operation is executed. By adopting the method, the problem that measures are taken only after quench occurs, and the quench risk cannot be pre-judged and intervened in advance can be solved.

The invention belongs to the technical field of quantum functional materials, and particularly relates to a non-central superconducting material W3-xCrxReRuC and a preparation method and application thereof. According to the method, W, Cr, Re, Ru and C in corresponding stoichiometric ratios are fully ground by utilizing a traditional high-temperature solid-phase method and then pressed into a cylindrical block, and then the W < 3-x > CrxReRuC polycrystalline block is obtained through one-step synthesis with an electric arc melting method. The superconducting material increases a new member for a non-central superconducting family, provides an instructive effect for revealing a superconductivity mechanism, and is expected to provide an ideal material platform for revealing the influence of Cr element doping on superconducting performance. In addition, the material is wide in application prospect and can be involved in multiple fields such as electric power communication, traffic transportation, medical treatment, high-energy physics, high-tech equipment and military equipment. The method not only enriches the types of non-central superconductors, but also is expected to promote the practical application of the non-central superconductors.

The invention discloses a method and system for testing the performance of a copper oxide high-temperature superconductor, and belongs to the technical field of intelligent sensing systems, and the method comprises the steps: obtaining an original resistance-temperature change curve and a plurality of measurement resistance-temperature change curves of the copper oxide high-temperature superconductor; marking an attenuation initial temperature and a superconducting initial temperature in the resistance-temperature change curve to obtain a minimum temperature deviation of the attenuation initial temperature; screening an attenuation initial change trend section; acquiring an attenuation change steep coefficient to obtain a corrected temperature deviation of the attenuation initial temperature; obtaining an attenuation initial temperature interval and a trend influence factor of each measurement temperature in the attenuation initial temperature interval; obtaining an adjustment weight of each measurement temperature, and obtaining an adjusted attenuation initial temperature; obtaining the adjusted superconducting initial temperature; the critical temperature is obtained, and the performance test of the copper oxide high-temperature superconductor is achieved. According to the invention, the critical temperature of the copper oxide high-temperature superconductor can be tested and determined more accurately and stably.

A superconductor-based quantum computer and an operating method thereof are disclosed. A superconductor-based quantum computer according to one embodiment includes a lower layer including a multi-chip module, a middle layer connected with the lower layer, and an upper layer connected with the middle layer. The upper layer includes a qubit layer, the middle layer includes a superconductor transmission line through which electromagnetic waves for controlling the qubit layer are transmitted, and a first coupling rate control element provided to adjust a coupling rate between the transmission line and the qubit layer. The first coupling rate control element includes a physically movable material layer, a boundary of which is movable depending on a voltage applied thereto, and a metal layer provided on a surface of the movable material layer, the metal layer facing the qubit layer and forming a capacitive coupling with the qubit layer and the transmission line.

The application discloses a kind of based on multisensor fusion's superconductor quench detection method, system and medium related to superconductor quench detection technical field, the method includes: by the multiple different types of sensors arranged, acquisition is used to describe the multidimensional original data of superconductor operating state in first set time range;Key features are extracted based on the original data;The key features are characterized in the time series features of superconductor operating state evolution trend in the first set time range;The key features are input to LSTM network for processing, obtain the predicted features in future second set time range, and output the quench probability of superconductor based on the predicted features;Based on the quench probability, quench risk level is judged, and based on the quench risk level, intervention operation is executed.The method can solve the problem that measures are taken after quench has occurred, and quench risk cannot be predicted in advance and intervened.

There is a superconducting article that includes a superconducting film comprising a substrate, one or more buffer layers, and a high temperature superconducting (HTS) layer. The superconducting layer may be comprised of the chemical composition REBa2Cu3O7-x, where RE is one or more rare earth elements, for example: Y, La, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. The superconductor layer is produced using Photo-Assisted Metal Organic Chemical Vapor Deposition (PAMOCVD) and contains non-superconducting nanoparticles. The nanoparticles are substantially provided in the a-b plane and naturally oriented. The non-superconducting nanoparticles provide flux pinning centers that improve the critical current properties of the superconducting film.