42 results about "Uniform field" patented technology

The invention discloses a mine roadway deformation data real-time analysis system based on edge calculation, which relates to the technical field of intelligent sensing and data analysis fusion, and comprises a data acquisition module for acquiring roadway deformation initial data through a sensor, simulating a deformation field evolution process by adopting a finite element analysis method, and analyzing the deformation field evolution process; the feature extraction module is used for extracting key stress distribution parameters from the non-uniform field distribution features, if the parameters exceed a preset threshold value, the key stress distribution parameters are marked as a risk concentration area, a monitoring position candidate set is determined, and the signal quality evaluation module is used for evaluating the monitoring position candidate set according to the monitoring position candidate set. Acquiring a signal-to-noise ratio and an integrity data quality index of a sensor signal, and performing priority grouping on the monitoring points through a clustering algorithm to obtain a dynamic priority evaluation result; according to the mine roadway deformation data real-time analysis system based on edge calculation, intelligence, real-time performance and high reliability of mine roadway deformation monitoring are achieved.

The invention provides a lightning protection device current leakage detection method and system, and the method comprises the steps: firstly determining equivalent uniform field response signals corresponding to a rotating electromagnetic field at different rotating moments, and dividing the surface of a lightning protection device into a plurality of current detection blocks; the field intensity coupling relation between the surface of the lightning protection device and the detection probe in the detection probe array is determined according to the equivalent uniform field response signal corresponding to the rotation moment; determining a current density inversion field of the surface of the lightning protection device at the rotation moment by combining the frequency domain characteristics of the equivalent uniform field response signal corresponding to the rotation moment through a field intensity coupling relationship; and generating a current density topological graph of the leakage current of the lightning protection device based on all the density inversion fields, and positioning the leakage current position of the lightning protection device according to a current density abnormal region in the current density topological graph. By adopting the scheme of the invention, the influence of the complex geometric structure of the lightning protection device on the space positioning of the surface leakage current can be reduced.

The invention discloses a multi-source property right data verification method, and relates to the technical field of data processing. The method comprises the following steps: acquiring property right data from different data sources, and converting the property right data into a unified field according to semantics of the property right data and a preset mapping rule; after the knowledge graph is constructed based on the uniform field, the business rule vectors are coded into node attributes of the knowledge graph; and traversing nodes and edges in the knowledge graph through a preset graph traversal algorithm, and verifying the property right data according to the business rule vector to obtain a verification result. According to the method, the association relationship between the knowledge graph integration entities is constructed, and the service rule is encoded into the knowledge graph for verification, so that verification is not limited to single node data any more, cross-node verification can be performed in combination with the association information, and the verification accuracy is improved.

This invention discloses a laser beam identification device and method for identifying whether a test beam is a first laser beam or a second laser beam, wherein the spectral widths of the first and second laser beams are different. The laser beam identification device includes a beam expander, an aperture, and a detector. The beam expander allows the output beam formed after the test beam passes through to be incident on a first and a second slit in the aperture. The output light from the first and second slits interferes. The detector is located on the light-emitting side of the aperture and is used to detect the light intensity at at least two positions, which are different positions along the direction of the interference fringes. Based on the light intensity at these at least two positions, the detector determines whether the light field distribution at these positions is a fringe distribution or a uniform field distribution, thereby determining whether the test beam is the first or the second laser beam. This invention has low cost, relatively small size, and low power consumption.

The present invention discloses a phase-stirred reverberation chamber, a testing device and a method. In the present invention, a phased array antenna is placed in the reverberation chamber cavity, and a device under test is placed in the testing area within the reverberation chamber cavity. The phased array antenna is used for beam scanning to change the state within the reverberation chamber, and a statistically uniform field is formed within the testing area, which can achieve the effect of a mechanical stirring device in the reverberation chamber, providing a highly operable and low-cost method for electromagnetic compatibility simulation and testing in the reverberation chamber. The testing process of the present invention does not require a mechanical stirrer, so the volume of the reverberation chamber cavity can be reduced and the volume of the testing area can be increased. At the same time, it has the characteristics of high speed and easy operation, and can be widely applied to the situation of EMC testing in a conventional reverberation chamber.

The application provides a magnetic field adjusting system and method, which comprises a measuring probe, a first-stage coil, a second-stage coil and a PID control system, wherein the second-stage coil is distributed on both sides of a uniform field area inside the first-stage coil, and the second-stage coil has a higher order than the first-stage coil; the measuring probe is arranged in a preset magnetic field adjusting area of the first-stage coil to measure the magnetic field information of the first-stage coil and the second-stage coil, or the measuring probe measures the magnetic field information of the first-stage coil and the second-stage coil and sends the information to the PID control system; and the PID control system adjusts the magnetic field of the second-stage coil based on the received magnetic field information to compensate the magnetic field of the first-stage coil. The measuring probe measures the magnetic field information of the first-stage coil and the second-stage coil, so that the PID control system can determine the current acting on the corresponding first-stage coil and second-stage coil according to the measured magnetic field information, thereby realizing real-time adjustment of the magnetic field.

Two push rod type linear stepping motors in the device are arranged at the two ends of a guide rail through L-shaped push rods, carrying tables are arranged above the L-shaped push rods, telescopic rotating motors are arranged on the carrying tables respectively, the telescopic rotating motors are vertically connected with magnet plates, and the magnet plates are arranged on the carrying tables. A third telescopic rotating motor is arranged at the rear end of one magnet plate, a vertical guide rail groove and a transverse guide rail groove are formed in one magnet plate, and the control module is connected with all the motors. According to the invention, the high gradient magnetic field advantage of the panel Halbach array is utilized, the precise control capability of the motor is combined, the automatic uniform field and gradient field conversion function of the device is utilized, and a microscope with an image acquisition function is matched, so that the degree of phagocytosis of magnetic particles by cells is automatically observed, and multiple sets of magnetic field devices do not need to be additionally arranged; the cell activity can be effectively protected, and the magnetic field application requirements in the fields of biomedical detection, analysis detection and the like are met.

The application discloses a method and a program product for automatically generating a three-dimensional geological finite element model, which determines a horizontal reference surface based on the maximum height difference of the ground surface, determines a first grid size and a second grid size based on a shear wave velocity, and then comprehensively determines the number of ground surface part grids and divides hexahedral units; according to the first grid size, equally divides a base part into horizontal slices with the same height, and determines the grid size of the horizontal slices in combination with a corrected minimum shear wave velocity; according to the grid size and thickness requirement, combines adjacent horizontal slices to obtain a final rock layer division scheme, and then comprehensively determines the number of rock layer grids and divides the rock layer into hexahedral units; and according to the three-dimensional center coordinates of each hexahedral unit, compares the three-dimensional center coordinates with an original geological model, and sets the stratum category of the hexahedral unit. The application greatly reduces the modeling time and cost of a three-dimensional non-uniform field finite element model of a complex terrain, has high grid quality, and is beneficial to the application of the three-dimensional geological model in the simulation and analysis of earthquake disasters.

The application provides a lightning protection device current leakage detection method and system. First, the equivalent uniform field response signal corresponding to the rotating electromagnetic field at different rotating moments is determined, and the surface of the lightning protection device is divided into multiple current detection blocks. The field strength coupling relationship between the surface of the lightning protection device and the detection probe in the detection probe array is determined from the equivalent uniform field response signal corresponding to the rotating moment. The density inversion field of the current on the surface of the lightning protection device at the rotating moment is determined through the field strength coupling relationship combined with the frequency domain characteristics of the equivalent uniform field response signal corresponding to the rotating moment. The current density topology of the lightning protection device leakage current is generated based on all the density inversion fields, and then the leakage current position of the lightning protection device is located from the current density abnormal area in the current density topology. The application can reduce the influence of the complex geometric structure of the lightning protection device on the spatial positioning of the surface leakage current.

The present invention discloses an RFID antenna and ticket card with non-uniform field strength, wherein the RFID antenna includes a flat PCB antenna, wherein the PCB antenna is provided with high-permeability ferrite in the central area above and / or below the PCB antenna, and low-permeability ferrite with a lower permeability than the high-permeability ferrite is provided on the outer side of the central area. The present invention uses materials of different sizes of magnetic permeability to guide magnetic lines of force and control the intensity of the magnetic field distribution, so that within a unit area, the token ticket card can obtain more magnetic field energy, thereby ensuring the antenna's reading success rate and reading effect for small tickets. Therefore, the present invention can meet the needs of small-area tickets while taking into account the reading of standard tickets.

The invention relates to a flexible leaky-wave antenna for uniform and efficient radio frequency transmission in ultrahigh field MRI, which comprises a double-layer dielectric substrate, a transmission line, an isolation pad and an LWA structure layer, the double-layer dielectric substrate comprises a first dielectric substrate and a second dielectric substrate, the transmission line comprises a first copper layer, the first copper layer is laid on the upper surface of the first dielectric substrate, and the isolation pad is laid on the upper surface of the second dielectric substrate. An isolation pad is arranged between the first dielectric substrate and the second dielectric substrate to form spaced arrangement of the double-layer dielectric substrates, the LWA structure layer comprises a second copper layer, six annular grooves with the same size are formed in the LWA structure layer at equal intervals, discs are embedded in the six annular grooves, and the LWA structure layer is arranged below the isolation pad and attached to the second dielectric substrate. And a flexible layer made of a segmented high-dielectric flexible material is arranged below the second dielectric substrate. The invention further comprises an antenna design method. According to the invention, the transmission efficiency of the LWA and the distribution uniformity of the B1 + field are improved, the flexible design fits the human body, and the signal intensity is improved.

A conductive coil assembly for a magnetic resonance imaging (MRI) system includes a substrate. The conductive coil assembly also includes a first hollow conductor coil. The conductive coil assembly further includes a second hollow conductor coil. The first hollow conductor coil and the second hollow conductor coil are both disposed on the substrate relative to each other in an interleaved spiral pattern. Respective interiors of both the first hollow conductor coil and the second hollow conductor coil are configured to receive and to circulate a coolant to cool the conductive coil assembly.

The invention discloses a method and a device for calibrating a vector alternating magnetometer. The method mainly comprises the following steps of: placing the calibrated alternating magnetometer in a uniform field of a standard alternating magnetic field; establishing a relation equation set between the three-axis output of the calibrated magnetometer under the ideal condition and the three-axis output under the actual condition; the three-axis output values of the calibrated magnetometer under various attitudes are collected, the positive and negative directions of the three-axis output values are judged at the same time, unknown numbers in an equation set are fitted by adopting a least square method, and the unknown numbers comprise three-axis magnetoelectric conversion coefficients, orthogonality, zero offset and other parameters of the vector magnetometer. According to the method, the orthogonal degree measurement level and measurement efficiency of the alternating magnetometer can be effectively improved, and key parameters such as a magnetoelectric conversion coefficient, the orthogonal degree and zero offset can be obtained at the same time; compared with accurate measuring equipment such as a non-magnetic rotary table, the polyhedral measuring clamp is low in processing cost, small in required space, simple to operate and easy to operate.

The present invention discloses a dual Helmholtz control device for dynamic magnetic field compensation, comprising: a reverse Helmholtz coil, a forward Helmholtz coil, a fluxgate sensor, a uniform field compensation module, and a gradient compensation module; the reverse Helmholtz coil and the forward Helmholtz coil are parallel and opposite to each other, and are used to generate an induced magnetic field; the fluxgate sensor is used to convert the magnetic induction intensity of the induced magnetic field into a voltage signal; the uniform field compensation module is used to provide a gradient magnetic field for the reverse Helmholtz coil to cancel the non-uniform term in the geomagnetic field; the gradient compensation module is used to make the forward Helmholtz coil generate a corresponding bias uniform magnetic field to cancel the uniform term in the geomagnetic field. The dual Helmholtz coil structure adopted by the present invention compensates the uniform term and the non-uniform term in the geomagnetic field while reducing the size of the shielding device, and can provide an extremely weak magnetic environment with a large uniform area.

A conductive coil assembly for a magnetic resonance imaging (MRI) system includes a substrate. The conductive coil assembly also includes a first hollow conductor coil. The conductive coil assembly further includes a second hollow conductor coil. The first hollow conductor coil and the second hollow conductor coil are both disposed on the substrate relative to each other in an interleaved spiral pattern. Respective interiors of both the first hollow conductor coil and the second hollow conductor coil are configured to receive and to circulate a coolant to cool the conductive coil assembly.

The invention relates to the technical field of micro-droplet analysis, in particular to a positive and negative micro-droplet screening and online analysis device with an external electric field, comprising: a pneumatic atomization generation module comprising an aerosol generator and a carrier gas pressure regulation assembly; the electric field screening module comprises a deflection tube and an ultra-low noise high-voltage generator, and the deflection tube is embedded into a conducting layer in the inner side area of the tube wall to form an asymmetric electric field area; a sample inlet of the mass spectrum detection module is connected with the tail end of the deflection tube. By arranging the deflection tube and the asymmetric electric field, efficient screening of positive / negative electric micro-droplets is achieved, differential deflection tracks of the micro-droplets in a non-uniform field are utilized, micro-droplets with opposite electric properties are directly removed, and multi-stage separation operation steps are simplified; the three modules are integrally connected in series, so that the whole-course closed transmission of the micro-droplets from generation, screening to analysis is realized, the micro-droplets are ensured to enter the mass spectrum without loss, and the problems of sample adsorption and volatilization loss caused by traditional offline separation are solved.

The invention discloses a uniform field generating coil cooling configuration and lead routing. A conductive coil assembly for a magnetic resonance imaging (MRI) system includes a substrate. The conductive coil assembly also includes a first hollow conductor coil. The conductive coil assembly also includes a second hollow conductor coil. The first hollow conductor coil and the second hollow conductor coil are both disposed on the substrate in a staggered spiral pattern relative to each other. Respective interiors of both the first hollow conductor coil and the second hollow conductor coil are configured to receive a coolant and to circulate the coolant to cool the conductive coil assembly.

The invention discloses a double-layer spherical self-shielding uniform field coil and a design method, and relates to the field of electromagnetic design. The problems that due to the line width of an existing spherical coil, as the number of turns increases, the actually-machined coil can not meet spherical distribution constraint possibly, and consequently the actual result does not conform to theoretical analysis are solved. The method comprises the following steps: on the basis of a constructed double-layer spherical self-shielding uniform field coil, the magnitude of a magnetic field generated by an ith pair of coils in a space (x, y, z) is calculated according to the Bios-Savart law, and the magnetic field of the double-layer spherical self-shielding uniform field coil is obtained by accumulating the magnetic fields of the coils; describing the uniformity of the magnetic field through a relative error, describing the self-shielding effect of the coil through a ratio, and setting a non-uniform error and an attenuation coefficient constant threshold; a constrained nonlinear multi-objective optimization problem is constructed and is further converted into a single-objective optimization problem through a weighting mode, and optimization calculation is carried out based on a genetic algorithm.

The invention discloses an infrared thermal imaging array real-time optimization method based on an AI model, relates to the technical field of infrared imaging optimization, and is used for solving the problem that a real-time image optimization path is not clear. According to the method, a frame-level state vector and a region-level feature set are used as input, a region-level module activation mask is dynamically generated, exposure time, a dynamic range mapping curve and a confidence coefficient identifier are output through an AI model, parameter gating and backspacing are carried out under the constraints of a frame rate, delay and power consumption, and a region-level module activation mask is obtained. Non-uniformity correction, motion compensation space-time noise reduction and detail enhancement are selectively executed according to regions, a processing path and an image quality index are recorded, then non-interrupted self-supervised fine tuning is triggered under an approximate field-averaging condition, a fixed pattern noise template and related parameters are updated, and the image quality is improved. Therefore, key area priority and low-value area early exit are realized, redundancy calculation is reduced, infrared imaging contrast and dynamic range utilization rate are improved, and temperature measurement consistency and long-term stability in multiple scenes are enhanced.

The invention discloses a miniaturized kilowatt-level optical isolator based on an innovative magnetic circuit, and relates to the field of passive optical devices. The isolator comprises a first collimator, a second collimator, a first polarizing beam splitter, a second polarizing beam splitter, a third polarizing beam splitter, a fourth polarizing beam splitter, a first optical rotation assembly, a second optical rotation assembly, a first light absorption device, a second light absorption device and a shell. Aiming at a thermally induced birefringence compensation scheme adopting double magneto-optical crystals and a quartz optical rotation sheet, the core of the invention lies in innovation of a permanent magnet structure in an optical rotation assembly: two discrete magnetic field peak regions are constructed on an optical axis by adopting a multi-ring nesting and specific magnetizing design. On the basis, a magnetic field strategy distributed according to needs is provided, the two magneto-optical crystals are arranged at the peak value of the magnetic field to enhance the Faraday effect, and meanwhile the quartz optical rotation piece is made to avoid the middle area. The design is different from a traditional uniform field scheme, and by means of accurate distribution of magnetic energy, device miniaturization and magnetic energy efficiency improvement are achieved while high isolation and kilowatt-level power bearing are guaranteed.

The invention discloses a complex noise scene concrete defect fine identification method comprising the following steps: firstly, using an arbitrary feature extraction network to generate an initial class activation graph, and completing preliminary positioning of a defect area; secondly, performing binarization processing on the initial class activation graph to generate an initial segmentation result which is used for describing a rough contour of the defect; then, a unitary potential energy model and a binary potential energy model are constructed based on a dense conditional random field, and the boundary and internal consistency of the defect area are optimized, so that the segmentation refinement degree is improved; and finally, optimizing hyper-parameters of a dense conditional random field in combination with a hedera helix algorithm, and generating a final high-precision segmentation result through uniform field variation reasoning. Through organic combination of the deep learning technology and the probability model, the detection precision and boundary definition of the concrete structure defects are improved, efficient and accurate defect identification in a complex noise environment is realized, and a reliable technical guarantee is provided for automatic detection of the concrete structure defects.

The application discloses a kind of based on edge computing's mine roadway deformation data real-time analysis system, it is related to intelligent sensing and data analysis fusion technical field, including data acquisition module, roadway deformation initial data is collected by sensor, adopts finite element analysis method to simulate deformation field evolution process, obtain non-uniform field distribution characteristics and potential blind area redundant position, feature extraction module, from non-uniform field distribution characteristics extraction key stress distribution parameter, if parameter exceeds preset threshold, then mark as risk concentration area, determine monitoring position candidate set, signal quality evaluation module, for monitoring position candidate set, obtain the signal-to-noise ratio and integrity data quality index of sensor signal, priority grouping is carried out to monitoring point by clustering algorithm, obtain dynamic priority evaluation result;The based on edge computing's mine roadway deformation data real-time analysis system, realizes the intelligent, real-time and high reliability of mine roadway deformation monitoring.

The provided is a signal saturation method for achieving spatial selection under a non-uniform field, and a medium. The method includes: setting a corresponding magnetization preparation module based on a distance between a target saturation region and a surface coil under a non-uniform field (S1); transmitting, by the surface coil, a first main pulse sequence, or sequentially transmitting a first magnetization preparation module and a first main pulse sequence, to acquire a first echo signal, and storing the first echo signal as a first dataset (S2); sequentially transmitting, by the surface coil, a second magnetization preparation module and a second main pulse sequence to acquire a second echo signal, and storing the second echo signal as a second dataset (S3); and processing the first dataset and the second dataset to saturate a signal in the target saturation region, thereby achieving spatial selection (S4).

The invention relates to the technical field of electromagnetic excitation, discloses an array electromagnetic excitation system capable of adaptively adjusting spatial magnetic field intensity, and aims to solve the problems of non-uniform field distribution, inflexible parameter regulation and control and weak scene adaptability of a traditional electromagnetic excitation system. According to the system, a technical system of'multi-parameter independent regulation and control-adaptive power matching-reconfigurable array collaborative optimization 'is constructed, a distributed intelligent control architecture of'DDS + FPGA + AI algorithms' is adopted, and independent adjustment of electromagnetic parameters of an excitation source is realized in combination with a frequency-band power amplification and dynamic impedance matching technology; a reconfigurable coil array driven by piezoelectricity is matched with a multi-physical field monitoring closed loop of a Hall sensor array and a temperature / stress sensor, and the distribution uniformity of an electromagnetic field is adjusted in combination with a field-structure collaborative optimization algorithm. According to the invention, the energy transmission efficiency and scene adaptability can be improved, and high-precision adjustment of electromagnetic excitation is realized.

This invention discloses a full-domain transmission system and control method based on synchronous coupling of power frequency magnetic field and strong and weak current signals, belonging to the field of power and communication convergence technology. The system adopts a strong-master, weak-slave transmission paradigm, using power frequency strong current as the sole synchronization reference, with weak current signals following the power frequency magnetic field for synchronous coupling transmission. The core carrier is a five-layer coaxial cable, consisting of, from the inside out, a strong current conductive core, a low-conductivity uniform field multifunctional metal composite layer, an inner insulating medium, a weak current conductive layer, and an outer insulating sheath. The composite layer enhances the power frequency magnetic field and provides electromagnetic isolation, while the insulation structure ensures complete electrical isolation between strong and weak currents. The system is divided into a three-level architecture: central control level, hub level, and terminal level, covering the entire link from the power grid backbone to community distribution and home access. The home terminal uses a wall panel with an integrated wireless module for seamless roaming throughout the house. A dual-path current anomaly monitoring and automatic isolation unit is deployed hierarchically throughout the entire link, distinguishing between equipment surges and leakage faults, enabling early warning of weak current anomalies and hierarchical isolation of strong current faults. In home scenarios, precise isolation and power outage can be achieved in a single room. This system can be smoothly expanded from home scenarios to the national power grid, relying on the existing power grid to build a backup communication network, with simple wiring, high security, and low overall cost.

Disclosed methods include placing a semiconductor wafer containing MRAM devices into a first magnetic field that has a magnitude sufficient to magnetically polarize MRAM bits and has a substantially uniform field strength and direction over the entire area of the wafer. The method further includes placing the wafer in a second magnetic field having an opposite field direction, a substantially uniform field strength and direction over the entire area of the wafer, and magnitude less than a design threshold for MRAM bit magnetization reversal. The method further includes determining a presence of malfunctioning MRAM bits by determining that such malfunctioning MRAM bits have a magnetic polarization that was reversed due to exposure to the second magnetic field. Malfunctioning MRAM bits may further be characterized by electrically reading data bits, or by using a chip probe to read one or more of voltage, current, resistances, etc., of the MRAM devices.

The application relates to a high-resolution magnetic particle three-dimensional imaging system, which comprises a magnetic ring structure and a solenoid coil located at the center of the magnetic ring structure; the magnetic ring structure comprises a zero-pole and a dipole located at the outer ring of the zero-pole, the zero-pole comprises an outer zero-pole and an inner zero-pole, and the dipole comprises an outer dipole and an inner dipole; the solenoid coil comprises an excitation coil and a receiving coil, the excitation coil is nested at the periphery of the receiving coil, and the excitation coil and the receiving coil are both three-section solenoid coils; and the zero-pole and the dipole are both composed of multiple permanent magnets. The magnetic particle three-dimensional imaging system uses two zero-poles and two dipoles as gradient fields and uniform fields, uses a three-section two-end compensation solenoid coil as an excitation field, uses a gradient receiving coil to receive a magnetic particle response signal, can effectively realize a high gradient value and a large uniform field, thereby realizing three-dimensional imaging and increasing an imaging field of view.

The present invention discloses a multi-source heterogeneous information fusion detection device and method for fatigue cracks in steel box girders, which relates to the field of bridge engineering technology. It comprises: a signal generator, a power amplification module, a uniform field magnetization module, an array magnetic sensor module, a data acquisition card, an infrared thermal imaging module, a visible light imaging module and a detection terminal computer. The present invention integrates electromagnetic two-dimensional images and infrared and visible light imaging results, and has higher reliability than traditional eddy current and visual methods for measuring fatigue cracks in steel box girders; the uniform field magnetization module structure is optimized according to the geometric characteristics of the steel box girder, while improving the local magnetic flux, it avoids the formation of the interval uniform heating field to block the field of view of the infrared and visible light imaging modules; a multi-source heterogeneous information fusion detection method is established, which can be applied to the defect identification of the surface of steel box girders in complex situations.

The application discloses a kind of based on flat Halbach array's magnetophoresis device and method, two push rod type linear stepping motors in device are set in guide rail two ends by L type push rod, L type push rod top is equipped with stage, the telescopic rotary motor is respectively arranged on the stage, telescopic rotary motor vertically connects magnet plate, third telescopic rotary motor is arranged in rear end of one of magnet plate, vertical guide rail groove and horizontal guide rail groove are equipped on one of magnet plate, control module is connected with each motor.The application utilizes the high gradient magnetic field advantage of flat Halbach array, combines the accurate control ability of motor, utilizes the automatic uniform field and gradient field conversion function of device, cooperates with the microscope with image acquisition function, realizes the observation of degree of automatic cell phagocytosis magnetic particle, does not need to additionally equip multiple sets of magnetic field device, it is convenient to operate and can effectively protect cell activity, adapts biomedical detection, analysis detection and other multi-field magnetic field application needs.

According to the biplane DC-RF compound field driving coil system for the optical pump magnetometer, the complexity, noise and volume of the system are reduced and the measurement sensitivity and integration degree are improved by unifying the geometric configuration and differential parameters of the biplane, and particularly, the high-frequency magnetic field distortion and frequency dispersion effect in a magnetic shielding environment are optimized. Specifically, the problems of insufficient magnetic field uniformity, enhanced electromagnetic interference and RF magnetic field distortion in a large-volume area caused by non-uniform coil configuration in the traditional design are solved, so that the high uniformity of the magnetic field is realized, and the space utilization rate and the signal quality of a system are improved, and the system is characterized by comprising a standard coil unit and a radio frequency coil unit, the standard coil unit and the radio frequency coil unit both adopt a biplanar coil configuration after simulation optimization, the biplanar coil comprises a left planar coil and a right planar coil, and the left planar coil and the right planar coil are parallel, coaxially and symmetrically arranged on the two sides of a target area and used for generating and compensating a shimming magnetic field.