34 results about "Magnetic field imaging" patented technology

According to the displacement modulation and optical assistance-based SERF atom magnetometer magnetic imaging method, an SERF atom magnetometer integrated with a magnetic flux guider is used as a magnetic sensor, and low-frequency magnetic field modulation is introduced to the magnetic sensor by controlling a to-be-tested sample to perform periodic infinitesimal displacement in the sensitive direction of the magnetic sensor; the modulation signal is demodulated by combining a phase-locked amplification technology, and a magnetic response signal subjected to phase-locked demodulation at each spatial position is extracted; constructing a magnetic response matrix through two-dimensional track scanning of micron-order step pitch; an image acquisition module and a reflection optical assembly are introduced for spatial registration so as to monitor the relative position in real time, and the visibility and controllability of the magnetic imaging process are guaranteed; the point-by-point detection of fT-level weak magnetic signals can be realized on the premise that an array structure is not needed; the low-frequency noise interference can be effectively inhibited, the stability and definition of direct-current and low-frequency magnetic field imaging are improved, and the method is suitable for high-resolution space imaging application of weak magnetic sources such as magnetic domain structures, nervous tissue slices and ancient rock samples.

The invention, which relates to the technical field of battery fault detection, discloses a lithium battery fault detection system comprising a magnetic field sensor, a data acquisition and processing module, a magnetic field imaging unit and a fault diagnosis and positioning module. The magnetic field sensor is provided with a high-precision magnetic field sensor array around the outside of the lithium battery according to the size and the shape of the lithium battery, the three-dimensional image of the magnetic field in the lithium battery can be visually displayed by using the magnetic field imaging technology, and the details of the distribution of the magnetic field in the battery are revealed; by comparing and analyzing the magnetic field image and the preset fault feature library, the system can automatically identify and judge the fault type and accurately position the fault position according to the abnormal area in the magnetic field image, and the high-precision positioning capability enables technicians to quickly and accurately know the condition of the internal fault of the battery, so that the fault detection accuracy is improved. And powerful support is provided for subsequent fault processing and maintenance.

The invention belongs to the technical field of magnetic field imaging and neural network image processing, and particularly relates to a high-resolution magnetic field imaging method and system based on a sparse data reconstruction network, and the method comprises the steps: inputting a to-be-reconstructed sparse magnetic field distribution image into a pre-constructed sparse data reconstruction network, and outputting a high-resolution complete magnetic field distribution image; the network comprises a generator and a discriminator and is optimized by performing adversarial training only by using sparse samples and masks thereof, and the training process does not need to depend on paired high-resolution and low-resolution complete images. The generator realizes image reconstruction through multi-scale information completion, depth feature extraction and up-sampling, ensures the fidelity of a sampling point by adopting pixel loss constrained by a mask, and improves the physical authenticity of an unknown region in combination with adversarial loss. The system integrates a data preprocessing module, a network reconstruction module, a loss optimization module and a result output module, can quickly generate a high-quality magnetic field image from low-efficiency sparse sampling data, and effectively solves the contradiction between the resolution and the acquisition efficiency in magnetic field imaging.

The invention discloses a sparse magnetic field data reconstruction method, system and device and a storage medium, and relates to the technical field of magnetic field imaging and neural network image processing, and the method comprises the steps: obtaining initial sampling sparse magnetic field data of a target detection region through a data collection part; inputting the initial sampling sparse magnetic field data into a sampling strategy part, generating a sampling probability distribution diagram, and obtaining active sampling sparse magnetic field data according to the sampling probability distribution diagram; inputting the active sampling sparse magnetic field data and the initial sampling sparse magnetic field data into a space superposition part to obtain final sampling sparse magnetic field data; and inputting the final sampling sparse magnetic field data into a sparse data reconstruction module, and outputting high-resolution reconstruction magnetic field data. The method provided by the invention achieves better effects in the aspects of improving the sampling efficiency, optimizing the reconstruction quality, reducing redundant data and enhancing the reconstruction stability.

The application discloses a kind of sparse magnetic field data reconstruction method, system, equipment and storage medium, is related to magnetic field imaging and neural network image processing technical field, including by data acquisition department obtaining the initial sampling sparse magnetic field data of target detection area;Initial sampling sparse magnetic field data is input into sampling strategy department, generates sampling probability distribution graph, according to sampling probability distribution graph, obtains active sampling sparse magnetic field data;Active sampling sparse magnetic field data and initial sampling sparse magnetic field data are input into spatial superposition department, obtain final sampling sparse magnetic field data;Final sampling sparse magnetic field data is input into sparse data reconstruction module, and high-resolution reconstructed magnetic field data is output.The method described in the application is more good in improving sampling efficiency, optimizing reconstruction quality, reducing redundant data, enhancing reconstruction stability.

The invention relates to the field of distance measurement, and particularly discloses a detection reagent card shell adaptability detection system, which is used for detecting a detection reagent card shell filled with magnetic powder, and comprises a matrix type magnetic field detection module, a processing module and a magnetic field imaging module, the matrix type magnetic field detection module comprises a substrate and magnetic field sensors, the magnetic field sensors are fixed on the substrate in an array mode, and the magnetic field sensors are used for collecting magnetic field intensity signals at different positions in the plane of the outer side of the to-be-detected reagent card shell and converting the magnetic field intensity signals into electric signals to be output; the processing module is used for getting close to the to-be-detected reagent card shell after the matrix type magnetic field detection device is started. By the adoption of the technical scheme, key information such as the actual fitting degree, pressing force distribution and local gaps of the internal test strip and the card shell can be obtained, and the specific position of the assembly problem can be accurately positioned.

The application discloses a two-dimensional magnetic field imaging method based on diamond NV color centers, comprising the following steps: generating a rough scanning path according to a region to be measured, controlling a displacement scanning unit to drive a diamond NV color center detection unit to move point by point, locking and triggering collection after reaching a position; obtaining the light detection magnetic resonance spectrum of each measuring point through light excitation and microwave sweep, and calculating the magnetic field information; identifying an abnormal region according to the rough scanning result and generating a fine scanning path, and performing fine scanning on the abnormal region; periodically returning to a reference point to collect a reference spectrum line during the scanning process, and compensating for the drift of the current batch of measuring points, and finally matching the compensated magnetic field information with coordinate information to generate a two-dimensional magnetic field distribution map. The application can improve the positioning accuracy, measurement stability and imaging reliability of two-dimensional magnetic field imaging.

The invention provides a wide-field magnetic field imaging method based on sparse sampling and Bayesian estimation, and belongs to the field of magnetic field imaging. The method comprises the following steps: constructing an NV color center system, measuring and recording information of a magnetic field to be measured; selecting a small number of discrete sampling points to measure magnetic field intensity data in an imaging field of view of a measured area; the method comprises the following steps of: constructing an error correlation function among pixel points in a measured area, establishing a Bayesian estimation model, and predicting the magnetic field intensity of unmeasured pixel points in a full field of view by taking magnetic field intensity data of a small number of discrete sampling points as observed quantity to obtain a preliminarily reconstructed magnetic field distribution image; selecting a plurality of reference points in the measured area, acquiring nominal magnetic field values and actually measured magnetic field values of the reference points, and calibrating the preliminarily reconstructed magnetic field distribution image by adopting a mean value proportion correction mode; on the premise that the number of sampling points is greatly reduced, magnetic field distribution reconstruction with high spatial resolution and high structural similarity is achieved, and therefore imaging efficiency and reliability are improved.

The application relates to the technical field of magnetic field imaging, in particular to a fast magnetic field imaging method based on diamond NV color center coherent regulation. In order to solve the problem that the existing diamond NV color center-based magnetic field imaging method is complex to operate, a new fast magnetic field imaging method based on diamond NV color center coherent regulation is provided, and the method comprises the following steps: 1) setting the frequency of pulsed microwaves; 2) setting a synchronous control sequence, collecting fluorescence intensities of diamond NV color centers at different positions in a two-dimensional space; 3) drawing Rabi curves about time-fluorescence intensity corresponding to the different positions of the diamond NV color centers in the two-dimensional space; 4) obtaining actual angular frequencies corresponding to each Rabi curve; 5) calculating the magnetic field strength variation of the diamond NV color centers at different positions in the two-dimensional space; and 6) realizing magnetic field imaging. The method realizes the target of fast magnetic field imaging.

The invention relates to the technical field of grounding systems, in particular to an earth surface magnetic field vector imaging method and system for a grounding system conduction test, and the system comprises a measurement area building unit which is used for building an earth surface magnetic field measurement system for the conduction test, completing earth surface magnetic field measurement wiring for the conduction test, and forming an earth surface magnetic field measurement area; the resultant magnetic field imaging unit is used for measuring earth surface vector magnetic field data based on the earth surface magnetic field measurement area and completing three-dimensional resultant magnetic field imaging; and the additional synthetic magnetic field unit is used for taking out a characteristic measuring line according to the three-dimensional synthetic magnetic field imaging result of the earth surface synthetic magnetic field and completing data sampling of additional synthetic magnetic fields at different heights according to local peak value positions of the characteristic measuring line. By judging the specific burial depth of the grounding grid and the through-flow current on each branch conductor, the frame position and the specific burial depth of the grounding grid can be clearly determined, the excavation detection of the grounding grid can be better assisted, and the detection and excavation efficiency of the grounding grid is improved.

The present invention provides a gravity and magnetic field imaging method and system. The method includes: calculating the vertical derivatives of gravity and magnetic field data by using the integrated second vertical derivative method {T n}; substituting the measured first-order vertical derivative into the integrated second vertical derivative method, and the integrated second vertical derivative method degenerates into a method that only needs to be calculated in the spatial domain without the need to calculate the gravity and magnetic field integrals in the wavenumber domain; calculating the coefficient equation of the downward continuation of the Padé approximation expansion by using the obtained vertical derivatives {T n} and solving the coefficients therein; substituting the obtained coefficients into the Padé approximation expansion to calculate the downward continuation result of the gravity and magnetic field data; performing median filtering on the obtained downward continuation result, and directly imaging the filtered result to obtain the equivalent gravity and magnetic field imaging result. The gravity and magnetic field imaging method and system provided by the present invention can focus on improving accuracy and reducing the dependence on depth weighting on the premise of ensuring stability.

This invention relates to the field of quantum imaging technology and proposes a digital phase-locked microwave magnetic field imaging system and method based on diamond NV centers. This invention images microwave fields based on the principle of power-broadened magnetic resonance. The system consists of multiple subsystems: an excitation optical path, an imaging optical path, an acquisition system, and a bias magnetic field. The excitation light is used to excite the diamond NV centers; the imaging optical path captures the fluorescence changes during microwave exposure; the acquisition system controls the testing system and analyzes data through a programmed host computer; and the bias magnetic field splits the resonance peaks to increase the bandwidth of the measured microwave field. Furthermore, imaging at different resolutions can be achieved by changing the objective lens. This invention enables non-destructive, non-invasive measurement of microstrip lines at room temperature using the NV center ensemble, thereby analyzing their operating status. In practical applications, this method offers advantages such as high sensitivity and rapid imaging.

The present invention belongs to the field of magnetic field imaging measurement, and provides a diamond NV center magnetometer imaging method and system, including: calibration and chromatic aberration elimination, focus positioning, high-pass filter filtration, and image capture. Through the structure of an achromatic lens, a wedge prism group, and a diamond NV center, the present invention reduces the laser spot size and improves the spatial resolution of the magnetometer.

The invention discloses a high-precision, high-efficiency and low-power-consumption magnetic field imaging device and method, and belongs to the field of integrated electronic circuit design and automatic algorithms. The device part comprises 10 * 10 millimeter-scale packaged linear magnetic sensor zero-spacing arrays, output signals of each linear Hall magnetic field sensor are output to a self-adaptive magnetic field acquisition motion controller through a signal pin header, and are enabled and conducted through a 16-channel analog signal multiplexing module and a 16-channel digital signal chip selection enabling module in the controller; and reading detection data of the linear Hall sensor at the specified position. And meanwhile, a linear motor platform is designed to control the millimeter-level packaging linear magnetic sensor to move to a target area in a zero-spacing array manner according to different movement requirements. The method is partially combined with an adaptive magnetic field acquisition algorithm and a high-precision linear motor platform, so that high-precision magnetic field imaging of a local area can be finally realized while large-range efficient imaging can be realized.

The invention discloses a magnetic field imaging method with an embedded depth denoising network, and the method comprises the implementation steps: (1) building an experiment platform, arranging a main imaging sensor array and an auxiliary sensing sensor array in a preset two-dimensional measurement region, and constructing a magnetic field imaging system; (2) establishing a two-dimensional relative position mapping model between the main imaging sensor and the measured magnetic field source based on the two-dimensional grid parameters and the layout of the main imaging sensor; (3) under the condition that only environment noise source interference exists, magnetic noise signals of the main imaging sensor and the auxiliary sensing sensor are synchronously collected, and a deep denoising learning data set is constructed; (4) constructing a deep denoising network taking a multichannel auxiliary perception sensor signal as an input and a main imaging sensor noise signal as an output, and learning a mapping relation through supervised training; (5) when a target magnetic field exists, reconstructing and suppressing a noise component in a main imaging sensor signal by using the trained network; and (6) mapping the denoised main imaging sensor signal into two-dimensional magnetic field distribution according to a two-dimensional relative position mapping model to realize magnetic field imaging. According to the invention, denoising and two-dimensional imaging of magnetic field signals in a complex interference environment are realized through deep learning noise modeling and two-dimensional space mapping based on cooperation of multiple sensors.

The embodiment of the application discloses a scanning NV probe microscope, which comprises an atomic force microscope system for detecting surface topography information of a sample and an optical detection magnetic resonance system for detecting magnetic field distribution information of the sample, the atomic force microscope system comprises a vibrating arm and a diamond probe, and the optical detection magnetic resonance system comprises an NV color center, a transition excitation light path and a fluorescence detection light path; the sample to be scanned and the transition excitation light path are located on opposite sides of the diamond probe respectively, and the transition excitation light path and the fluorescence detection light path are located on the same side of the diamond probe; a first metal plating film is arranged on the side of the diamond probe close to the sample, and the first metal plating film is used for blocking surface fluorescence of the sample. The scanning NV probe microscope provided by the embodiment of the application blocks stray fluorescence from the surface of the sample by arranging a metal plating film at the bottom of the diamond probe, so that the problems of low signal-to-noise ratio of magnetic field imaging and limited measurement accuracy of the existing scanning NV probe microscope are solved.

This invention discloses a magnetic field imaging method with an embedded deep denoising network. The implementation steps include: (1) building an experimental platform and deploying a main imaging sensor array and an auxiliary sensing sensor array in a preset two-dimensional measurement area to construct a magnetic field imaging system; (2) establishing a two-dimensional relative position mapping model between the main imaging sensor and the measured magnetic field source based on the two-dimensional grid parameters and the layout of the main imaging sensor; (3) simultaneously acquiring magnetic noise signals from the main imaging sensor and the auxiliary sensing sensor under the condition of only environmental noise interference to construct a deep denoising learning dataset; (4) constructing a deep denoising network with multi-channel auxiliary sensing sensor signals as input and main imaging sensor noise signals as output, and learning its mapping relationship through supervised training; (5) when the target magnetic field exists, using the trained network to reconstruct and suppress the noise components in the main imaging sensor signal; (6) mapping the denoised main imaging sensor signal to a two-dimensional magnetic field distribution according to the two-dimensional relative position mapping model to achieve magnetic field imaging. This invention achieves denoising and two-dimensional imaging of magnetic field signals under complex interference environments through multi-sensor collaborative deep learning noise modeling and two-dimensional spatial mapping.

The invention belongs to the field of magnetic field imaging measurement, and provides a diamond NV color center magnetometer imaging method and system, and the method comprises the steps: correction and chromatic aberration elimination, focus positioning, high-pass optical filter filtering, and image shooting. Through the structure of the achromatic lens, the wedge-shaped prism and the diamond NV color center, laser spots are reduced, and the spatial resolution capability of the magnetometer is improved.

The invention provides an optical part defect measuring device, and the device comprises a carrying mechanism which comprises a carrying pedestal and a carrying table; the objective table is arranged on the objective base, the objective table is suitable for bearing a to-be-detected lens, a magnetic induction receiving module and a magnetic part are arranged on the objective table, an electromagnetic generation module is arranged on the objective base, and the electromagnetic generation module is used for generating a magnetic field at the position of the objective table; the imaging mechanism is opposite to the objective table and used for collecting images in the moving and hovering process of the objective table; the control mechanism is electrically connected with the imaging mechanism, the electromagnetic generation module and the magnetic induction receiving module; and the detection mechanism is electrically connected with the imaging mechanism. According to the optical part defect measuring device, the objective table is driven through magnetic induction, multi-degree-of-freedom movement of the objective table is achieved, and therefore the optical part defect measuring device can better meet the detection requirements of optical parts of different shapes and sizes.

The invention provides a detection device based on in-situ magnetic field imaging and application thereof, the device comprises a scanning motion device, a magnetic field acquisition device, a computer and a shielding case, a test sample and the magnetic field acquisition device are placed in the shielding case to isolate external signal interference; the input ends and the output ends of the scanning motion equipment and the magnetic field acquisition equipment are connected with the computer, and the computer controls the working state, collects test data, images and feeds back a result; the magnetic field acquisition device is moved to a specified test position through the scanning motion device, the magnetic field acquisition device is used for collecting magnetic induction intensity data of a test sample under a certain condition, the two devices cooperate with each other to obtain data of each measurement point in a test sample plane, and the computer processes test data and performs imaging feedback. The detection device is simple and convenient to operate, short in test time and large in detection range, can detect a sample in a working state in a lossless and real-time manner, and can position an abnormal position of the test sample within a certain range.

The present application relates to magnetic field imaging measurement technique, aims at providing a kind of heart magnetic field imaging measurement device and method based on diamond NV color center system.The present application proposes single-axis vector heart magnetic field imaging measurement and full-axis vector heart magnetic field imaging measurement based on the same technical principle, relies on excitation light to realize the polarization of diamond NV color center, and utilizes microwave field to control NV color center, obtains the population of NV color center spin quantum state by detecting the fluorescence signal intensity change generated by NV color center, to realize the measurement of external magnetic field intensity, realizes heart magnetic field imaging by multiple diamonds to constitute array.The present application can utilize NV color center system to non-destructively measure heart magnetic field vector field at room temperature, non-destructively, non-invasively measure and analyze heart working state;Since solid-state spin system can work in room temperature atmosphere, so that the method has the advantages of high sensitivity and robustness in practical application.

The present application relates to the field of electromagnetic wave imaging technology, and specifically discloses an electromagnetic field imaging method, which mainly comprises: 1. constructing an imaging model; 2. Determining the element number N and the array pose based on the mode requirements for imaging and the actual size of the antenna, and calculating the circular array radius corresponding to each mode separately; 3. Controlling the system according to the array pose determined in step 2, the phase-shifting parameters of each element antenna, and the radius of the circular array; 4. Receiving the echoes corresponding to each pose with the receiving antenna, and forming a two-dimensional (2D) echo matrix based on the frequency and the mode; 5. Processing the echo signal to obtain a distance-azimuth 2D imaging result.

The invention discloses a portable magnetic field imaging device which comprises an array type magnetic field sensor, a sensor zooming mechanism, a multi-path differential output voltage signal processing circuit, a display screen, a magnetic field imaging model and the like. The array type magnetic field sensor can obtain magnetic field information of multiple points in a plane to be measured at the same time, magnetic field measurement in multiple planes is carried out through the sensor zooming mechanism, the magnetic field imaging model enables the magnetic field information to correspond to coordinates of a spatial position to be measured, and a magnetic field vector distribution diagram is drawn. The portable magnetic field imaging device disclosed by the invention can collect the magnetic field information of a plurality of measured points in the to-be-measured space at a high speed, and the imaging device is small in size and relatively good in portability.

The present invention provides a gradient magnetic field imaging method and related device based on spatial light modulation, including: making an incident detection laser beam be divided into two detection laser beams after being emitted; turning on a heating device; completing a magnetic field compensation operation; applying a calibration magnetic field signal; setting the first parameter value in the frequency control parameter as the frequency control parameter of a radio frequency driver; obtaining a corresponding gradient magnetic field value by processing with a data processor; setting the frequency control parameter of the radio frequency driver point by point according to a set of frequency control parameter values ​​corresponding to the second detection laser beam recorded in step 2, repeating step 6 and recording a corresponding set of gradient magnetic field values; making a one-to-one correspondence between a set of point-by-point position values ​​of a scanning light beam in step 2 and a set of gradient magnetic field values. The technical solution of the present invention is applied to solve the technical problem that the SERF atomic magnetometer imaging device in the prior art is difficult to simultaneously meet the requirements of high spatial resolution and high sensitivity.

The invention discloses a magnetic field signal space imaging monitoring method and system for a coal rock damage area, and relates to the technical field of coal rock damage fracture monitoring, and the method comprises the steps: placing a coal rock sample on a stress conduction device and at the center position of a plurality of magnetic field sensors; acquiring the magnetic field signal intensity corresponding to each sampling point time of the coal rock sample in the stress loading process based on the plurality of magnetic field sensors; establishing a magnetic field signal space model of the coal rock sample; determining magnetic field signal distribution in the magnetic field signal space model by using an inverse distance weighting method based on the coordinates of the plurality of magnetic field sensors and the magnetic field signal intensity; and generating a three-dimensional magnetic field imaging graph of the coal rock sample based on the magnetic field signal distribution. The technical problems that in the prior art, three-dimensional magnetic field signal space distribution of the coal rock damage area is difficult to obtain, and danger information of the coal rock damage area is difficult to accurately and effectively reflect are solved.

The invention relates to the technical field of lithium ion battery pack state monitoring and fault diagnosis, in particular to a battery pack consistency evaluation method based on space magnetic field imaging and deep learning, which comprises the following steps: data acquisition and preprocessing: obtaining standardized input data for evaluation; constructing and training a dual-path deep learning network model; carrying out model training and online evaluation; the method has the beneficial effects that global magnetic field distribution change and local magnetic field distortion features caused by an abnormal battery can be captured at the same time through a dual-branch feature enhancement module in a magnetic field image path, and omission of fine abnormal features is avoided. Meanwhile, working condition context information provided by an electric parameter path dynamically guides image feature focusing through cross-modal attention, so that the model can interpret a magnetic field image in combination with the actual working state of the battery, and deep complementation and cooperative enhancement of electric-magnetic physical information are realized; therefore, the method shows extremely high detection sensitivity and overall evaluation precision for early and slight inconsistency.

The invention relates to the technical field of quantum sensing and biological extremely-low-intensity magnetic field imaging, and discloses a quantum dot and diamond composite material and a preparation method thereof. The quantum dot and diamond composite material comprises diamond particles and quantum dots. The diamond particles include NV color center structures. The diamond particles are provided with first surface ligands. And the quantum dots are provided with second surface ligands. And the second surface ligand is connected with the first surface ligand, so that the quantum dots are grafted on the surfaces of the diamond particles. Wherein the distance between the quantum dots and the corresponding NV color center structures is smaller than or equal to 10 nm. Through the absorption capacity of the NV color center structure of the quantum dot sensitized diamond, the absorption performance and the fluorescence performance of the composite material are improved, and the application range of the composite material in the field of biological sample magnetic field signal detection is expanded.

The invention discloses a shape-following self-adaptive magnetic flux leakage dynamic camera shooting welding seam nondestructive testing device and a defect feature extraction method. The device comprises a magnetic field detection module, an excitation device, a thousand-path signal processing device and a magnetic field imaging upper computer. The magnetic field detection module adopts a flexible substrate to adapt to the curved surface morphology of the welding seam; the module comprises a Hall sensor array, and signal acquisition is realized through time division multiplexing of a multi-way switch. The excitation device is used for establishing a controllable static or alternating magnetic field in a welding seam area, and the requirements for different materials and thicknesses are met. And the thousand-path signal processing device drives a multi-path switch through a precise time sequence, so that time division multiplexing acquisition, high-speed analog-to-digital conversion and serial transmission of multi-path sensor signals are realized. The magnetic field imaging upper computer is responsible for magnetic field data gradient calculation, image reconstruction and result storage. Complete two-dimensional magnetic field distribution information in a space can be directly collected, an external light source is not needed, the problem of ambient illumination interference is solved, and meanwhile, integrated detection of surface and near-surface defects is achieved.

The utility model discloses a portable magnetic field imaging device, which comprises an array type magnetic field sensor, a sensor zooming mechanism, a multi-path differential output voltage signal processing circuit, a display screen, a magnetic field imaging model and the like. The array type magnetic field sensor can obtain magnetic field information of multiple points in a plane to be measured at the same time, magnetic field measurement in multiple planes is carried out through the sensor zooming mechanism, the magnetic field imaging model enables the magnetic field information to correspond to coordinates of a spatial position to be measured, and a magnetic field vector distribution diagram is drawn. The portable magnetic field imaging device disclosed by the utility model can collect magnetic field information of a plurality of measured points in a space to be measured at a high speed, and is small in size and better in portability.

The invention relates to the technical field of magnetic field imaging, in particular to a rapid magnetic field imaging method based on diamond NV color center coherent regulation and control. In order to solve the problem that an existing magnetic field imaging method based on a diamond NV color center is complex in operation, the invention provides a novel rapid magnetic field imaging method based on diamond NV color center coherent regulation and control, and the method comprises the following steps: 1) setting the frequency of pulse microwaves; 2) setting a synchronous control sequence, and collecting fluorescence intensity of different positions of a diamond NV color center two-dimensional space; the method comprises the steps of (1) drawing time-fluorescence intensity Rabi curves corresponding to different positions of a diamond NV color center two-dimensional space, (2) drawing time-fluorescence intensity Rabi curves corresponding to different positions of the diamond NV color center two-dimensional space, (4) obtaining actual angular frequency corresponding to each Rabi curve, (5) calculating and reversely deducing magnetic field intensity variation corresponding to different positions of the diamond NV color center two-dimensional space, and (6) achieving magnetic field imaging.