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52 results about "Quantum detection" patented technology

Quantum sensing technology-driven water quality pollution rapid detection method

The invention relates to the technical field of water quality pollution detection, in particular to a water quality pollution rapid detection method driven by a quantum sensing technology. A quantum sensor array is deployed in a water area to be detected, and quantum signal response data of the water area is collected; constructing a pollutant quantum recognition model, and inputting quantum signal response data into the model to obtain an initial predicted value of pollutant concentration; generating an initial detection parameter of the quantum detection instrument based on the initial predicted value, executing primary pollution detection by the instrument according to the parameter, and collecting primary deviation data of an actual detection value and an expected detection value; determining a detection error according to the deviation data, further correcting the initial detection parameter, and generating an optimized detection parameter; and finally, the instrument performs secondary pollution detection based on the optimized detection parameters. According to the method, complex water sample pretreatment is not needed, water quality pollution detection can be rapidly and accurately completed, detection requirements of different water areas are met, and the detection efficiency and accuracy are improved.
Owner:FENGGANG ENVIRONMENTAL TECHNOLOGY CO LTD

Quantum sensing-based product production quality inspection management method and system

The invention provides a product production quality inspection management method and system based on quantum sensing, and relates to the technical field of industrial automation and quantum detection, and the method comprises the steps: collecting the quantum phase difference, spin relaxation time and energy density data of a product through a quantum sensing array; performing quantum state decoupling processing on the multi-dimensional field data, and extracting a quantum hue consistency coefficient and a structure anomaly index; constructing a multi-scale convolutional neural network to generate a three-dimensional quality feature tensor; dynamically optimizing a defect judgment threshold value based on a quantum annealing algorithm; and generating a visual thermodynamic diagram and triggering a process control instruction. The system comprises a quantum sensing module, an edge computing unit, a dynamic decision engine, a man-machine interaction terminal and a feedback control module, and closed-loop management is realized through multi-physics field synchronous acquisition and real-time control. According to the method, traditional detection resolution limitation is broken through by utilizing quantum sensing, micro defects are accurately identified, and complex working conditions are adapted through dynamic threshold optimization.
Owner:ZHEJIANG YUEXIN PRINTING & DYEING CO LTD

Optical transport network equipment channel security detection system and method based on quantum measurement

The invention relates to optical fiber channel security detection, in particular to an optical transport network equipment channel security detection system and method based on quantum measurement and an optical time domain quantum detection device, which are used for carrying out signal detection with high spatial resolution and large dynamic range based on quantum measurement and realizing high-precision sensing of multi-dimensional parameters of an optical fiber channel. The main control software is applied to realize equipment control, data processing and analysis based on an artificial intelligence algorithm and application layer communication; the optical transport network equipment performs information interaction with the application master control software through the management and control system and executes a corresponding security policy; the wave combination control module is used for carrying out beam combination on the optical signal output by the optical time domain quantum detection device and a service signal output by the optical transport network equipment, entering an optical fiber channel and controlling to switch a detection line; according to the technical scheme, the defects that high-spatial-resolution and large-dynamic-range signal detection is difficult to carry out, and accurate event type judgment and high-precision spatial discrimination cannot be carried out on tiny loss events can be overcome.
Owner:ANHUI QASKY QUANTUM SCI & TECH CO LTD +1

Surface mine mining system and method based on three-dimensional model

The invention relates to the technical field of mining exploration, and discloses a surface mine mining system and method based on a three-dimensional model, and the system comprises a three-dimensional modeling module which is used for fusing earth surface and deep geological data to construct a dynamic digital twinborn body, receiving environment dynamic sensing data, and calculating rock mass stress and a water flow coupling field in real time; the mining planning module is used for generating a mining step design and equipment scheduling instruction based on the lithologic parameters and stress distribution of the dynamic digital twin; the equipment control module is used for converting the equipment dispatching instruction into centimeter-level action control signals of a mine truck and an electric shovel through a low-delay communication chain; and the monitoring feedback module is used for collecting mining surface deformation and muck pile characteristic data. Through the dynamic digital twinborn body fusing earth surface centimeter-level scanning and deep quantum detection and stress and water flow coupling field real-time calculation, synchronous visualization of the rock mass mechanical state and hydrological response is achieved, full-time-domain geological perspective capacity is provided for mining decision, and mining efficiency is improved.
Owner:YANZHOU SINOMA CONSTR CO LTD

High-voltage cable partial discharge detection device and installation method

The invention relates to the technical field of power equipment, and discloses a high-voltage cable partial discharge detection device and an installation method, and the high-voltage cable partial discharge detection device comprises a housing, a quantum detection module, a radio frequency signal module, an optical signal module, a photoelectric conversion element, a signal analysis and processing module, and a control module. And the quantum detection module comprises a diamond which is arranged between the shell and the high-voltage cable and contains an NV color center. The radio-frequency signal module comprises a radio-frequency signal transmitting assembly, a radio-frequency signal receiving element and a radio-frequency signal transmission cable, and the radio-frequency signal receiving element is arranged on the shell. The optical signal module comprises a laser signal transmitting assembly, a first optical fiber, an optical fiber coupler and a condensing lens. The first optical fiber is connected with the photoelectric conversion element, and the photoelectric conversion element is electrically connected with the signal analyzing and processing module. According to the high-voltage cable partial discharge detection device, partial discharge detection of the high-voltage cable can be realized, and injury of high-voltage current to operators is avoided.
Owner:MEASUREMENT CENT OF GUANGDONG POWER GRID CO LTD

Power equipment vibration defect identification method and system

The invention relates to the technical field of power equipment operation and maintenance, and discloses a power equipment vibration defect identification method and system. Dynamically adjusting an acoustic vortex field orbital angular momentum mode corresponding to the target power equipment through a preset programmable metasurface array, and obtaining a resonance response signal of the equipment; carrying out compressed state laser irradiation and balanced zero beat detection on the resonance response signal to obtain a quantum correlation factor time sequence; reconstructing a resonance response signal phase space based on the quantum correlation factor time sequence, and calculating to obtain a correlation dimension and a maximum Lyapunov index; and performing defect identification based on the correlation dimension, the maximum Lyapunov index and a preset threshold to obtain defect identification data of the power equipment. According to the method, dynamic sound field excitation and quantum detection are combined, the vibration defects of the power equipment are recognized, and the technical problem that the recognition precision is low due to the fact that a sensor is high in measuring point dependence, low in environmental noise anti-interference capacity and insufficient in fault feature extraction in a traditional method is solved.
Owner:ZHONGSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID +1

National secret SSL handshake communication method based on quantum key

The invention discloses a national secret SSL handshake communication method based on a quantum key, and relates to the technical field of quantum communication, and the method comprises the following steps: point-to-point connection is established between two communication parties through a quantum communication link, and the two communication parties are respectively a sender and a receiver; a sender uses a single photon source to generate and send a group of quantum bits to a receiver according to a predetermined quantum coding mode, and the receiver measures the received quantum bits through a quantum detection device to obtain a corresponding measurement result. According to the method, the quantum state in the quantum communication link is monitored in real time, the potential collapse risk prediction is carried out in combination with the deep neural network, the redundancy is automatically adjusted when the risk is found, error correction coding is carried out, and thus the anti-interference capability is improved. By introducing an anti-interference structure and dynamic redundancy adjustment, key distortion or communication interruption caused by quantum state collapse is effectively avoided, smooth key negotiation is ensured, and the reliability and data security of a communication link are remarkably enhanced.
Owner:CHINA NAT INST OF STANDARDIZATION

Magnetic impurity simulation method, device and system based on current dipole

The invention discloses a current dipole-based magnetic impurity simulation method, device and system, belongs to the technical field of nondestructive testing, and solves the problem of how to improve the magnetic impurity simulation precision. Comprising the steps of inputting simulation parameters of target magnetic impurity particles, calculating target driving current, introducing a medium correction coefficient to perform reverse correction on the target driving current, and solving actual driving current; actual driving current is applied to the current dipole array of the selected level, and a simulated magnetic field is generated; an analog magnetic field signal is extracted based on a phase-locked amplification technology and is used for magnetic field signal inversion verification or sensitivity calibration. According to the method, the magnetic moment generated by the current dipole is equivalent to the excitation moment of the magnetic impurities, the medium correction coefficient k is introduced to carry out reverse correction on the target driving current, the actual driving current is solved, and the magnitude mapping relation from the magnetic impurity particle parameters to the actual driving current is established; and the accuracy and reliability of sensitivity calibration of the quantum detection equipment are improved.
Owner:STATE GRID ANHUI ELECTRIC POWER CO LTD ELECTRIC POWER SCI RES INST

Traveling wave microwave light quantum detection method and system and superconducting quantum circuit

The invention discloses a traveling wave microwave light quantum detection method and system and a superconducting quantum circuit, and the method comprises the steps: building a three-level dimer coupled wQED system model; based on the system model, obtaining an equation set containing the input and output relation of the system model and a photon detection efficiency expression; acquiring a key parameter group based on the equation set and the photon detection efficiency expression; and adjusting the structure and the coupling relationship of the system model according to the key parameter group, and realizing traveling wave microwave light quantum detection based on the adjusted system model. In the invention, the brand-new three-level dimer coupled wQED system model is provided, and the structure and the coupling relationship are adjusted under the condition of reasonably setting a key parameter group, so that large-bandwidth high-efficiency detection is realized in principle by using the number of atoms which is far less than that of atoms in a traditional scheme; the physical resources are greatly saved, and the complexity of the system is simplified.
Owner:SHENZHEN Y& D ELECTRONICS CO LTD

A quantum detection device and eddy current detection method based on xenon atoms

PendingCN122330260AEddy currentParticle physics
This application relates to the field of quantum nondestructive testing technology, and discloses a quantum detection device and a xenon atom-based eddy current detection method. The quantum detection device includes an interconnected eddy current probe and a quantum measurement device. The quantum measurement device includes a xenon atom gas chamber for measuring the magnetic field strength of a target eddy current magnetic field. It acquires the target eddy current magnetic field of the target object, measures the magnetic field strength of the target eddy current magnetic field, and obtains the magnetic field strength distribution along the surface of the target object. Based on the magnetic field strength distribution, it detects thickness changes in the target object to obtain the weak point detection result. Its beneficial effect is that by measuring the eddy current magnetic field generated by the target object through a xenon atom gas chamber, it effectively utilizes the characteristics of xenon atoms—long coherence time and extremely low resonance frequency—thereby maintaining high sensitivity to capture weak magnetic fields at extremely low frequencies and obtaining a detection penetration depth far exceeding that of traditional sensors, achieving high-precision nondestructive testing of minute thickness differences inside the target object.
Owner:ZHEJIANG UNIV OF TECH

Method and device for analyzing water content of crude oil

PendingCN122385517AThermodynamicsHigh energy
The application discloses a crude oil water content analysis method and device. The method comprises the following steps: obtaining low, medium and high energy level light quantum detection data of a penetrating crude oil sample; calculating photoelectric effect cross section coefficients of low and medium energy levels, simultaneously solving oil, gas and water phase fractions and calculating a first mixed density; combining Compton reaction cross section coefficient of high energy level data to calculate a second mixed density; comparing the deviation of the two mixed densities, if the deviation is greater than a preset threshold, the detection time is automatically extended for re-measurement; if the deviation is still greater than the preset threshold, it is determined that the sample is in a gas-containing or non-full-liquid state, the high energy level calculation result is actively removed, and only the low and medium energy level data are used to solve the phase fraction and normalized output the final water content. The application innovatively introduces a density deviation check and a dynamic delay mechanism, effectively distinguishes and separates the gas phase interference, and realizes non-contact and high-precision automatic water content detection.
Owner:CHENGDU SEA PIONEERS TECHNOLOGY CO LTD +1

A fluorescence spectrum analysis device and method based on solid-state electronic spin ensemble

ActiveCN120177436BSuppresses axial fluorescence signalFluorescence/phosphorescenceSpatial light modulatorFluorescence spectra
The application relates to the technical field of spectral analysis, and discloses a fluorescence spectral analysis device and method based on a solid-state electron spin ensemble, wherein the spectral analysis device comprises a laser modulation unit, a confocal unit and a fluorescence processing unit; the laser modulation unit comprises a laser, a Griesinger-Taylor prism, an acousto-optic modulator, a beam expander, a collimating lens, a spatial light modulator, a spatial filter and a half-wave plate which are sequentially arranged; the confocal unit comprises a dichroic mirror, a focusing lens, a diamond and a microwave antenna which are sequentially arranged; the diamond has a solid-state electron spin NV color center; and the fluorescence processing unit comprises a filter group, a sleeve lens, a lens, a linear polarizer, a Bertin lens and a camera which are sequentially arranged. The application distinguishes the fluorescence generated by different axial NV color centers from the fluorescence level, and provides a thought and method for the miniaturization and bias magnetic field removal of a quantum detection device of the NV color center.
Owner:YANCHENG INST OF TECH

Microwave quantum detection method based on environmental noise fine perception

A microwave quantum detection method based on environmental noise fine perception comprises the following steps: step 1, constructing a parallel link of environmental noise perception and signal detection, adding an antenna and a low-temperature switch at the front ends of the environmental noise perception link and the signal detection link, connecting the two links in parallel, and switching between the environmental noise perception and the signal detection; step 2, acquiring environment noise distribution by using an environment noise sensing link: operating a low-temperature switch, selecting the environment noise sensing link, testing internal noise of the environment noise sensing link by adopting a cold and hot load method, and measuring external environment noise by using the environment noise sensing link; and step 3, pointing to a target orientation by using a signal detection link, and performing signal detection: operating a low-temperature switch, selecting the signal detection link, determining an antenna pointing angle, obtaining environment noise of the angle, setting attenuation of an adjustable attenuator according to the external environment noise, and detecting signals by using a microwave quantum detection device.
Owner:NANJING RES INST OF ELECTRONICS TECH

Systems and methods for entanglement assisted multistatic quantum radar

PendingUS20260050070A1Quantum computersNon-linear opticsOptical phase conjugationMultistatic radar
An entanglement-assisted multistatic quantum radar detection technique employs the integrated entangled source shared among multiple transmitters and performing transmit side optical phase conjugation. EA receivers are based on classical homodyne detection schemes. The EA multistatic radar detection technique is evaluated against bistatic radar EA detection scheme and various coherent states-based quantum detection schemes (the optimum quantum detector. Helstrom threshold detector, and random phase optimum quantum detector). The EA multistatic target detection probability is significantly better than that of corresponding bistatic radar EA detection techniques. coherent states-based quantum detection techniques. and the classical radar detection schemes. When both scattered signal photon channels and idler channels are noisy and lossy, the scheme significantly outperforms the EA bistatic radar scheme.
Owner:THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIV OF ARIZONA

Precision microwave detection method based on transmission enhanced spectrum without population inversion

The invention discloses a microwave precision detection method based on a transmission enhancement spectrum without population inversion, and belongs to the technical field of microwave quantum detection, the method abandons an electromagnetic induction transparency mechanism depended on by a traditional atom microwave electric field meter, and realizes a transmission field enhancement effect under the condition without population inversion through periodically coupled pulsed light. And a transmission spectrum is further generated. Precise detection of a microwave field is realized by using a linear relation between a peak-to-peak distance of a medium transmission spectrum and microwave field intensity. Compared with the prior art, the spectral line width of transmission light is remarkably compressed, the measurement sensitivity and precision are greatly improved, and the wide application potential is shown. In addition, the invention provides a brand new generation mechanism for the design of the atomic microwave electric field meter, and opens up a new way for the development of a microwave electric field precision detection technology.
Owner:SHANDONG UNIV OF SCI & TECH

Method for measuring position of point light source using spatial mode decomposition multiplexing

The application discloses a method for measuring position of a point light source by using spatial mode decomposition multiplexing, and the principle of the method is based on orthogonal projection measurement in quantum detection theory. The method converts direct measurement of distribution of light intensity of the point light source in a coordinate space into measurement of weights of each Hermite-Gaussian mode. In the specific operation, only the complex conjugate of the complex amplitude of each Hermite-Gaussian mode needs to be encoded into a computer hologram. By replacing different computer holograms, the photon number at the optical axis of the first-order diffraction light is recorded, and then the weights of the to-be-measured light field in each Hermite-Gaussian mode can be obtained after normalization. Compared with the traditional measurement, only one pixel is needed to achieve optimal measurement.
Owner:HANGZHOU DIANZI UNIV

3D quantum field detector

A detector can include a group of orthogonally oriented quantum detectors, wherein each quantum detector among the group of orthogonally oriented quantum detectors can detect variations in a quantum field. The detector can further include a signal processor that can determine a direction and magnitude of the detected quantum field variations based on outputs from the group of orthogonally oriented quantum detectors. Each quantum detector among the group of orthogonally oriented quantum detectors can include an array of Zener diodes biased to produce shot noise modulated by quantum field variations. The detector can constitute a three-dimensional quantum field detector. In some embodiments, a tunneling sensor comprising a tunneling capacitor may be implemented in place of Zener diode.
Owner:QUANTUM COGNITION CORP

Method for detecting tea saponin in tea seed meal

The invention discloses a method for detecting tea saponin in tea seed meal, and relates to the technical field of quantum detection.The method comprises the steps that a tea seed meal raw material is subjected to degreasing treatment through a cosolvent of supercritical carbon dioxide and ethyl lactate, and degreased dry powder is obtained; constructing a variable component sub-tensor network, inputting the spectral signal data into the variable component sub-tensor network for analysis, and outputting a tea saponin characteristic peak intensity value through frequency band sensitive layered tensor decomposition in combination with predefined frequency band segmentation and a fixed rank compression strategy; and establishing a two-channel calibration curve according to the tea saponin characteristic peak intensity value and a tea saponin standard substance, and calculating a quantitative detection result of the tea saponin in the tea seed meal. According to the method, a frequency band sensitive layered tensor decomposition mechanism is constructed, a variable component sub-tensor network analyzes a spectral signal into a frequency band quantum state set, nonlinear compression is realized by using a frequency band entanglement Hamiltonian, and the signal-to-noise ratio of a characteristic peak is enhanced.
Owner:JIANGXI XINZHONGYE TEA TECH CO LTD

High-efficiency quantum detection device and method based on area array detector

The invention provides a high-efficiency quantum detection device and method based on an area array detector, and is applied to the technical field of quantum light detection. A single-path photon signal is guided to a detection area through an optical coupling unit, and an array detection unit realizes multi-path parallel detection; and the signal synchronization processing unit performs independent delay adjustment and synthesis on multiple paths of electric signals, so that the technical problems of non-uniform spatial distribution of single-path photon signals, difficulty in multi-pixel electric signal management synchronization, signal distortion caused by response time difference and the like are effectively solved. The device has the advantages that the problems of spatial distribution of single-path photon signals, management synchronization of multi-pixel electric signals, response time difference compensation and the like are effectively solved, and the overall detection efficiency and the time resolution are remarkably improved.
Owner:JIHUA LAB

A real-time entropy evaluation post-processing quantum random number generation method

The application provides a real-time entropy evaluation post-processing quantum random number generation method. The quality of random numbers determines the privacy and security of a communication system. Quantum detection is inevitable in the quantum random number generation process, which will introduce side information. Therefore, the quantum noise entropy content of the system must be strictly evaluated, and the random numbers must be post-processed by using a security information theory extractor. The application proposes to reconstruct the quantum state phase space distribution in real time in a continuous variable quantum random number generation scheme and measure the deviation from the ideal value. If the deviation reaches the rejudgment threshold, the entropy evaluation is updated in real time, so as to adjust the size of the post-processing matrix in real time. The seed used to construct the random extractor is also updated in real time. On this basis, the information theory security generalized hash post-processing of multiple quantum random numbers is realized in parallel. The application provides a cost-intensive and expandable random number real-time entropy evaluation post-processing scheme, which can effectively improve the actual security and practicability of the quantum random number generator.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

A traveling wave microwave optical quantum detection method and system and a superconducting quantum circuit

The application discloses a kind of travelling wave microwave light quantum detection method, system and a superconducting quantum circuit, wherein the travelling wave microwave light quantum detection method includes: establishing three-level dimer coupling wQED system model;Based on system model, obtain the equation set containing system model input-output relationship and photon detection efficiency expression;Based on equation set and photon detection efficiency expression, obtain key parameter group;According to key parameter group, adjust the structure and coupling relationship of system model, realize the detection of travelling wave microwave light quantum based on adjusted system model.In the present application, this kind of brand-new three-level dimer coupling wQED system model is proposed, under the condition of reasonable setting key parameter group, adjust its structure and coupling relationship, and then realize high-efficiency detection with far less than the number of atoms of traditional scheme in principle to realize large bandwidth, greatly save physical resources, simplify the complexity of system.
Owner:SHENZHEN Y& D ELECTRONICS CO LTD

Preparation method and application of biological message science and technology fiber

The invention relates to the field of spinning. The preparation method of the biological information science and technology fiber is characterized by comprising the following steps: step 1, capturing a specific quantum spin field beneficial to human health by using a quantum detection instrument to obtain biological information; 2, storing and outputting biological information by using quantum technology, and loading the biological information on a sub-micron microchip made of a silicon-titanium material to obtain the sub-micron microchip for storing the biological information; and step 3, blending the sub-micron microchip storing the biological information with the polyester fiber slices, and preparing the biological information technology fiber by adopting a melt spinning technology. The prepared biological information technology fiber helps to improve sleep quality.
Owner:SHANGHAI SHUIXING HOME TEXTILE CO LTD +1

A speed measuring device based on transient electromagnetic induction transparency effect

ActiveCN121231803BUltra-widebandRydberg atom
This invention relates to a velocity measurement device based on the transient electromagnetic induction transparency effect. It utilizes two probe beams and two coupling beams to excite atoms in an atomic antenna to the Rydberg state. The probe beams are modulated into pulsed lasers to obtain the transient electromagnetic induction transparency signal of the Rydberg atoms. A first radio frequency signal source radiates electromagnetic waves to illuminate the target object; the reflected electromagnetic waves and the local oscillator electromagnetic waves radiated by a second radio frequency signal source simultaneously act on the Rydberg atoms at near-resonance. The velocity of the target object is measured by quantum precision measurement of the difference frequency signal generated by the interference of the two electromagnetic waves. Compared to traditional Rydberg atomic antennas, this invention's velocity measurement device based on the transient electromagnetic induction transparency effect can achieve velocity measurement of moving targets based on ultra-wideband, miniaturized quantum detection, thus expanding the functionality of Rydberg atomic antennas.
Owner:SPACE STAR TECH CO LTD

A water quality pollution rapid detection method driven by quantum sensing technology

The present application relates to the technical field of water quality pollution detection, and particularly relates to a water quality pollution rapid detection method driven by quantum sensing technology. The present application deploys a quantum sensor array in a water area to be detected to collect quantum signal response data of the water area; a pollutant quantum recognition model is constructed, the quantum signal response data is input into the model to obtain an initial prediction value of pollutant concentration; initial detection parameters of a quantum detector are generated based on the initial prediction value, the detector performs initial pollution detection according to the parameters, and first deviation data of actual detection values and expected detection values is collected; the detection error is determined according to the deviation data, and then the initial detection parameters are corrected to generate optimized detection parameters; finally, the detector performs secondary pollution detection based on the optimized detection parameters. The method can quickly and accurately complete water quality pollution detection without complex water sample pretreatment, is suitable for different water area detection requirements, and improves detection efficiency and accuracy.
Owner:FENGGANG ENVIRONMENTAL TECHNOLOGY CO LTD

National Cryptography SSL Handshake Communication Method Based on Quantum Key

The present invention discloses a national cryptographic SSL handshake communication method based on quantum keys, which relates to the field of quantum communication technology and includes the following steps: establishing a point-to-point connection between two communication parties through a quantum communication link, where the two communication parties are a sender and a receiver respectively; the sender uses a single-photon source to generate and send a set of quantum bits to the receiver according to a predetermined quantum coding method, and the receiver measures the received quantum bits through a quantum detection device to obtain corresponding measurement results. The present invention improves the anti-interference ability by real-time monitoring the quantum state in the quantum communication link and combining a deep neural network for potential collapse risk prediction, automatically adjusting the redundancy and performing error correction coding when risks are found. By introducing an anti-interference structure and dynamic redundancy adjustment, it effectively avoids key distortion or communication interruption caused by quantum state collapse, ensures the smooth progress of key negotiation, and significantly enhances the reliability and data security of the communication link.
Owner:CHINA NAT INST OF STANDARDIZATION

Vomitoxin detection method based on quantum detection technology

The invention belongs to the technical field of toxin detection, and particularly relates to a vomitoxin detection method based on a quantum detection technology. Based on a QBs fluorescence labeling technology and a competitive immunochromatography principle, a high-sensitivity quantitative detection system for DON in grain and oil crops is successfully constructed. By systematically optimizing the technical parameters of an antigen-antibody reaction system and a detection device, trace detection of DON (the detection limit reaches 10 ng / mL) is realized. A high-performance monoclonal antibody is screened based on a hybridoma cell technology, indirect ELISA detection shows that the half inhibitory concentration (IC50) to DON is lower than 40 ng / mL, and the affinity advantage of the antibody is verified.
Owner:INSPECTION & QUARANTINE TECH CENT HENAN ENTRY EXIT INSPECTION & QUARANTINE BUREAU

Air connection hybrid transmission method, device and equipment based on private cloud quantum link, medium and product

The invention discloses an air connection hybrid transmission method, device and equipment based on a private cloud quantum link, a medium and a product. Comprising the following steps: sending a quantum detection message containing a quantum entanglement pair to a private cloud transmission chain network, and determining a target quantum transmission link according to a feedback result of the quantum detection message; detecting a transmission quality parameter of the target quantum transmission link, and if the transmission quality parameter meets a preset data transmission requirement, constraining a transmission time parameter of the target quantum transmission link; if the transmission quality parameter does not meet the preset data transmission requirement, determining a target quantum route of an idle link in the private cloud transmission chain network; and transmitting the to-be-transmitted data through the target quantum transmission link or the target quantum route by adopting an air-connection hybrid transmission mode combining a classical channel and quantum transmission. According to the technical scheme, the private cloud data transmission stability and continuity are improved, the data security is guaranteed, the end-to-end delay is reduced, and the transmission efficiency is improved.
Owner:CHINA MOBILE GROUP JIANGSU +1

Quantum entanglement photon darkmeter-based evolution single-photon detector life evaluation system

PendingCN121089911ABiological modelsDark count rateBeam splitting
The invention relates to the technical field of quantum information, and discloses a quantum entangled photon darkmeter evolution single-photon detector life evaluation system, which comprises an entangled photon pair generation device, a light path beam splitting device, a to-be-evaluated single-photon detector, a coincidence measurement device, a dark counting rate monitoring module, a data processing evaluation module and a synchronous control module. According to the invention, based on the time correlation characteristic of the quantum entangled photon pair and the dynamic evolution of the dark count rate, the quantum detection performance degradation trend of the single-photon detector can be comprehensively reflected, and the accuracy of life evaluation can be improved; by means of the strong time correlation characteristic of quantum entangled photons, fine performance changes of the detector can be accurately captured, and the residual life of the detector can be pre-judged in advance; besides, the whole scheme does not need complex parameter regulation and control, the evaluation precision is guaranteed, meanwhile, the method can be adapted to single-photon detectors in different application scenes, and the reliability management efficiency of the core device of the quantum information system is effectively improved.
Owner:CHINA ELECTRONICS RELIABILITY AND ENVIRONMENTAL TESTING INSTITUTE ((THE FIFTH INSTITUTE OF ELECTRONICS MINISTRY OF INDUSTRY AND INFORMATION TECHNOLOGY) (CHINA SAIBAO LABORATORY)

MiRNA quantum detection method based on plasmon enhancement

The invention discloses a miRNA (micro Ribonucleic Acid) quantum detection method based on plasmon enhancement. The method comprises the following steps: modifying gold nanocubes on the surface of a fluorescent nano-diamond to generate the nano-diamond with a local surface plasmon resonance enhancement effect; the preparation method comprises the following steps: preparing a plasmon enhanced nano-diamond probe and a silicon dioxide microsphere probe, and hybridizing target miRNA to form a sandwich structure compound; injecting the compound into a micro-fluidic chip with a micro-column array structure, so as to entrap and enrich the compound with the sandwich structure, and filtering to remove the uncombined plasmon enhanced nano-diamond probe; the compound is subjected to fluorescence signal detection, and quantum signal detection is combined, so that qualitative or quantitative analysis of the target miRNA is realized. The background of the free probe is reduced through microfluidic filtration, the detection repeatability is improved, the nanodiamond reading signal intensity is improved by combining plasmon enhancement, and the method has the advantages of being high in sensitivity, high in specificity, convenient to operate, suitable for trace sample detection and the like.
Owner:SOUTHEAST UNIV

Fluorescence spectrum analysis device and method based on solid-state electron spin ensemble

The invention relates to the technical field of spectrum analysis, and discloses a fluorescence spectrum analysis device and method based on a solid-state electron spin ensemble, and the spectrum analysis device comprises a laser modulation unit, a confocal unit and a fluorescence processing unit; the laser modulation unit comprises a laser, a Green Taylor prism, an acoustic optical modulator, a beam expanding lens, a collimating lens, a spatial light modulator, a spatial filter and a half-wave plate which are arranged in sequence; the confocal unit comprises a dichroscope, a focusing lens, a diamond and a microwave antenna which are arranged in sequence; the diamond has a solid-state electron spinning NV color center; the fluorescence processing unit comprises an optical filter group, a sleeve lens, a lens, a linear polaroid, a Burtlan lens and a camera which are arranged in sequence. According to the invention, fluorescence generated by different axial NV color centers is distinguished from a fluorescent layer, and an idea and a method are provided for miniaturization of quantum detection equipment of the NV color centers and magnetic field debiasing.
Owner:YANCHENG INST OF TECH