430 results about "Magnetic field coupling" patented technology

The present invention relates to the field of defect detection technology, and in particular to an OLED screen defect detection method based on optical-magnetic multimodal fusion, comprising the following steps: S1: synchronous excitation and data acquisition based on pulsed current drive; S2: cross-modal spatial calibration and noise suppression; S3: polarization-magnetic field coupling feature extraction; S4: dynamic correlation decision-making and closed-loop feedback, including realizing defect classification determination through correlation analysis of multimodal data, and verifying the authenticity of defects through current overload testing. This method effectively solves the problems of ambient light interference, missed detection, high cost, low resolution, etc. existing in the prior art, has significant beneficial effects, can improve detection accuracy, efficiency and reliability, meet the needs of large-scale production lines, and can efficiently locate and reduce errors and redundant steps in the detection process.

According to the implantable magnetic suspension blood pump, an impeller is suspended in a containing cavity of a pump shell and can rotate around the central axis of the pump shell, and a motor comprises a motor stator assembly arranged in the pump shell and a rotor magnet array arranged on the impeller; the magnetic suspension device comprises an electromagnet arranged in the pump shell and a suspension magnet assembly arranged on the impeller. Active electromagnetic suspension force provided by the electromagnet and passive permanent magnet bias suspension force provided by the suspension magnet assembly act together to enable the impeller to maintain a balanced suspension state in the axial direction and the radial direction. The motor and the magnetic suspension device are independently controlled to effectively reduce the negative influence of low signal detection accuracy caused by magnetic field coupling, and the hybrid magnetic suspension structure reduces the power consumption of the magnetic suspension device; the arrangement mode of the electromagnet and the motor stator assembly enables the whole structure to be compact, and the size and the weight of the blood pump are reduced; the suspension position of the permanent magnet is accurately controlled by accurately controlling the gap and the position relation between the electromagnet and the suspension magnet assembly.

The invention discloses a numerical simulation research method for a high-performance hydrogen fuel cell based on magnetic-flow-thermal multi-physics field coupling. The method comprises the following steps: globally defining geometric dimensions and physical performance parameters of the fuel cell; constructing a high-performance hydrogen fuel cell three-dimensional model with permanent magnets arranged at the cathode and anode, and creating a geometric domain; defining a magnetic field coupling equation expression; adding material attributes and physical fields, selecting a solution domain for each physical field, and setting boundary conditions and parameters according to a control equation of the added physical field; grid division is carried out on the constructed three-dimensional model, a domain probe is added, and grid independence verification is carried out; research steps are determined, steady-state calculation is carried out on the coupled model, post-processing is carried out on result data, and a state curve or image is obtained. A numerical simulation method is utilized, a coupling model of the hydrogen fuel cell, multiphase flow, solid and fluid heat transfer and the magnetic field is constructed, the action and influence mechanism of the magnetic field on other physical fields is researched, and the performance of the fuel cell is effectively improved.

The invention relates to the field of servo motor parameter optimization, in particular to a magnetic field simulation and parameter optimization method and system for a permanent magnet servo motor rotor. The method comprises the following steps: acquiring a rotor global magnetic field monitoring curve in the operation process of a servo motor rotor, and constructing a global magnetic field accurate compensation model; performing regional magnetic circuit structure analysis on the global magnetic field accurate compensation model, performing dynamic magnetic field logic mapping modeling, and constructing a real-time regional magnetic field logic map; performing magnetic field state change analysis on the global magnetic field accurate compensation model, performing multi-node change track correlation analysis, and constructing a multi-node magnetic field coupling dependency network; and performing short-term magnetic field evolution prediction based on the multi-node magnetic field coupling dependency network, and performing comprehensive electromagnetic performance evaluation to obtain an electromagnetic performance evaluation report. According to the method, the sudden change of the magnetic field is accurately and quickly identified, so that the magnetic field parameters are iteratively adjusted and optimized, and the service life and the performance of the servo motor are improved.

The invention relates to an anti-offset wireless charging coupler for an underwater vehicle, which solves the problem that the multi-dimensional offset charging efficiency is reduced due to ocean current by adopting the collaborative design of a grouped serial-wound transmitting end and a geometric adaptive receiving end. The transmitting end is formed by connecting an outer ring winding and an inner ring winding in series, the outer ring provides wide-area magnetic field coverage, the inner ring strengthens the local magnetic field intensity, and the ferrite array is combined to suppress magnetic leakage to cope with horizontal and rotary offset; the receiving end adopts a curved surface type structure and fits the geometric contour of an aircraft shell, interference of a rotation offset delta phi on a magnetic field is limited through optimal design of a coverage angle theta, and magnetic flux is concentrated by a ferrite array on the back side to improve the coupling efficiency. The system does not need complex mechanical adjustment, realizes energy transmission through magnetic field coupling, keeps stable efficiency in seawater, fresh water and air environments, has the advantages of compact structure, high offset resistance, wide medium adaptability and high expandability, and remarkably improves the reliability and cruising ability of wireless charging of the underwater vehicle.

According to the implantable magnetic suspension blood pump structure, an impeller is suspended in a containing cavity of a pump shell and can rotate around the central axis of the pump shell, and blood is sucked in from an inlet and discharged from an outlet; the motor comprises a motor stator assembly arranged in the pump shell and a rotor magnet array arranged on the impeller. The magnetic suspension device comprises an electromagnet arranged in the pump shell and a suspension magnet assembly arranged on the impeller, and electromagnetic suspension force provided by the electromagnet and passive permanent magnet bias suspension force provided by the suspension magnet assembly jointly maintain suspension balance of the impeller. The motor and the magnetic suspension device are independently controlled, so that the negative influence of low signal detection accuracy caused by magnetic field coupling is effectively reduced; the hybrid magnetic suspension structure reduces power consumption of the magnetic suspension device; the arrangement positions of the motor stator assembly and the electromagnet enable the blood pump to be compact in structure and reduce the size and weight; the gap and the position of the electromagnet and the suspension magnet assembly are accurately controlled, accurate control over the suspension position of the permanent magnet is achieved, and the pumping efficiency and stability of the blood pump are improved.

The utility model provides a slender pipe fitting clamp tool used for electromagnetic field coupling processing, and belongs to the technical field of electromagnetic field coupling test equipment. Comprising two electromagnetic clamping ends used for being powered on to achieve electromagnetic conduction, a movable supporting device is connected to one sides of the two electromagnetic clamping ends in a sliding mode in the axial direction of a first clamping channel, a clamping assembly used for fixing a pipe fitting is arranged on the movable supporting device, and the first auxiliary supporting device is arranged on the sides, away from the movable supporting device, of the two electromagnetic clamping ends. The support is used for supporting pipe fittings. The movable supporting device and the second auxiliary supporting device are located on the two sides of the electromagnetic clamping end correspondingly, the problem that clamping is difficult in the electromagnetic coupling treatment process of pipe fittings / rod pieces with large length-diameter ratios is solved, pipe fitting / rod piece parts with different sizes can be clamped and fixed, and the effect of stably clamping the pipe fittings is achieved.

The invention relates to an aluminum bar permanent magnetic induction heating method for extruding an aluminum alloy profile, which mainly solves the problem of poor heating uniformity of an aluminum bar heated by electromagnetic induction in the prior art, and comprises the following steps of: a, placing the aluminum bar on a conveying mechanism for conveying, pushing the aluminum bar into a conveying channel of a heating mechanism through a pushing mechanism, and heating the aluminum bar in the conveying channel; the aluminum bar is arranged in a composite magnetic field generated by the permanent magnet assembly; b, a gradient magnetic field is formed through alternate arrangement of permanent magnet polarities of the permanent magnet assembly, meanwhile, the electromagnet generates a high-frequency alternating magnetic field through alternating current, eddy current is excited on the surface of the aluminum bar through the magnetic field coupling effect, conduction type heating from outside to inside is achieved, and the electromagnet is independently controlled through a sub-power source of the power source system; local magnetic field compensation is realized through independent current control, and the compensation range is + / -0.3 T; c, the temperature of the aluminum bar is detected through an infrared temperature sensor and fed back to a control system, and the distance between the permanent magnet unit and the aluminum bar is dynamically adjusted.

The magnetic suspension blood pump is high in integration level, small in magnetic field coupling degree and high in regulation and control precision and comprises a pump shell, an impeller, a motor unit and a magnetic suspension unit, and the axial suspension state of the impeller is jointly maintained through the magnetic acting force between an electromagnet assembly and a suspension magnet assembly and the magnetic acting force between a motor stator assembly and a motor rotor magnet; the repulsive force of the static magnetic ring array and the movable magnetic ring array maintains the radial suspension state of the impeller. The magnetic suspension unit and the motor unit are arranged at the upper end and the lower end of the impeller respectively, the distance between the magnetic suspension unit and the motor unit is increased in space, the magnetic coupling effect between the magnetic suspension unit and the motor unit is greatly reduced, control difficulty is remarkably reduced through independent control of the magnetic suspension unit and the motor unit, and system stability is improved. The special structural design improves the space utilization rate, reduces the size of the pump body, disperses a heat source and reduces the heat dissipation pressure; the bias magnetic field provided by the suspension magnet provides open-loop magnetic force in the axial direction, the closed-loop control force needing to be provided by the electromagnet assembly is greatly reduced, and the purposes of saving energy and reducing consumption are achieved.

The invention relates to the technical field of microelectronics, and discloses a processing method of a passive chip for magnetic field energy collection, which comprises the following steps: S1, providing a chip with a flexible substrate, and depositing a first dielectric layer on the surface of the substrate to isolate the substrate from a coil; s2, forming a three-dimensional spiral coil structure on the dielectric layer by adopting a three-dimensional micro-nano processing technology, wherein the coils are stacked layer by layer in an asymmetric spiral form along a direction perpendicular to the substrate; and S3, in the forming process of the coil, a multi-wire-harness cross arrangement design is used, so that the inductance increment of a unit area is maximized. Through the design of the three-dimensional spiral coils and the asymmetric coils, the limitation of a traditional planar coil structure on magnetic field coupling and induction efficiency is broken through, the three-dimensional spiral coils are arranged in a multi-layer mode in the vertical direction, magnetic flux coupling between the coils is tighter, and the inductance value and the induced electromotive force are remarkably improved.

The invention discloses a load capacity evaluation method for a new energy delivery transformer, particularly relates to the technical field of safe operation of power equipment, and is used for solving the problem that a safe load boundary is not accurate due to the fact that an existing evaluation method neglects an accumulated degradation effect of frequent actions of an on-load tap-changer on heat dissipation performance. The method comprises the following steps: constructing an interval time sequence by recording an action timestamp of an on-load tap-changer in real time, generating a permutation entropy value based on phase-space reconstruction, and triggering heat dissipation degradation evaluation; winding distributed optical fiber temperature and leakage magnetic field three-dimensional data are synchronously obtained, and a temperature-magnetic field coupling network is constructed to extract structural characteristic parameters to generate a heat dissipation degradation evaluation value; converting the evaluation value into a heat dissipation coefficient correction factor, dynamically correcting transformer thermal circuit model parameters in combination with real-time load current, and generating a safety load boundary in an adaptive degradation state; and finally outputting a load capacity evaluation result containing the corrected boundary. And dynamic correlation evaluation of the heat dissipation performance degradation and the safety load capacity of the transformer is realized.

The invention relates to the technical field of particle size analysis, solves the technical problem of signal distortion in rodlike abrasive dust particle size monitoring in a high-intensity magnetic field environment, and particularly relates to an inverse Fourier transform particle cross detection method and system for a laser particle analyzer, and the method comprises the following steps: collecting an original scattered light intensity signal and magnetic field intensity data; calculating a magnetic field change gradient based on the magnetic field intensity data; calculating a predicted phase offset used for eliminating signal distortion caused by rotating speed abrupt change by using the magnetic field change gradient; and identifying an oscillation risk period based on the magnetic field change gradient and a preset risk determination threshold. The method breaks through the hypothesis of a traditional Mie theory on spherical particles, establishes a scattering kernel function of the rod-shaped particles based on a T matrix theory, introduces a magnetic field coupling term, and quantifies the influence of a magnetic field on particle orientation and scattering signals. The situation that single particles are misjudged as multi-size mixed particles due to scattering double-peak artifacts caused by directional arrangement of the rod-shaped particles in a high-intensity magnetic field is avoided, and the particle size inversion precision is remarkably improved.

The invention relates to the technical field of air purification, and discloses a negative oxygen ion generator and a method thereof.The negative oxygen ion generator comprises an external shell used for providing installation positions for related parts; the power supply input module is mounted in the external shell, is internally provided with a filtering unit, and is used for receiving external direct current; the direct current and alternating current inversion module is electrically connected with the output end of the power supply input module, is internally provided with a switch assembly and is used for converting the direct current into high-frequency alternating current; a primary winding, a secondary winding and a feedback winding are arranged in the boosting transformer. A boosting transformer is arranged between a direct current and alternating current inversion module and a high-voltage double-voltage rectification module, so that the voltage is effectively boosted, more importantly, the magnetic field coupling characteristics of a primary winding and a secondary winding are utilized, reliable electrical isolation is constructed, and a physical path from a high-voltage side circuit to a low-voltage side circuit is blocked.

The invention relates to the technical field of alternating-current and direct-current power distribution, in particular to a flexible power distribution transformer for an alternating-current and direct-current power distribution network and installation equipment, and discloses the flexible power distribution transformer for the alternating-current and direct-current power distribution network. And the high-voltage side coil, the alternating-current low-voltage side coil, the direct-current low-voltage side coil and the direct-current low-voltage side coil with adjustable turns are connected with a series power module for voltage compensation and a parallel power module for current compensation. The beneficial effects of the invention are that a principle of magnetic field coupling balance of multiple power supplies in a magnetic loop is adopted to achieve the purpose of energy flow and interaction control in different directions, and the flexible adjustment of voltage and current at the low-voltage end of the transformer and the convenient access and interaction of the direct-current power supply and the direct-current load are realized; and the requirements of power distribution network voltage bidirectional cross-border treatment, current-related electric energy quality treatment and convenient access and interaction of a direct-current power supply and a load in novel power system application are met.

The invention relates to a physical field coupling simulation analysis method and device of a circuit breaker, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring distributed conductivity in an arc extinguish chamber of the circuit breaker; according to the distributed conductivity and an electric field finite element equation, an electric field distribution value in the circuit breaker arc extinguish chamber is obtained through calculation; calculating a current density distribution value in the arc extinguish chamber of the circuit breaker based on the electric field distribution value; substituting the current density distribution value into an axisymmetric magnetic field equation, and performing electric field and magnetic field coupling; substituting the port boundary voltage and the port current of the arcing area of the circuit breaker into the circuit matrix equation, and carrying out electric field and circuit bidirectional coupling; the electric field finite element equation, the axial symmetry magnetic field equation and the circuit matrix equation are combined, and the potential distribution value and the magnetic field distribution value of the arcing area of the circuit breaker and the port boundary voltage and the port current of the equivalent resistor are obtained through solving. By adopting the method, the simulation analysis efficiency and precision of the circuit breaker arc extinguish chamber can be improved.

The invention belongs to the technical field of integrated die casting, and relates to an integrated die casting forming method and system based on multi-magnetic-field coupling. The method comprises the steps that S1, metal raw materials are subjected to smelting, degassing modification and deslagging standing, and a metal melt is obtained; s2, in the inert gas environment, electromagnetic stirring is conducted on the metal melt; s3, the mold is subjected to mold heating, heat preservation and pressure maintaining, vacuumizing and release agent spraying; s4, the metal melt is pressed into a mold cavity for mold filling and solidification, a coupling magnetic field is applied to the metal melt, and an integrated die casting is obtained; wherein the coupling magnetic field covers a mold cavity and is used for improving the flowability of a metal melt during mold filling, inhibiting turbulent flow and refining the structure of the metal melt after solidification; the coupling magnetic field comprises a direct-current magnetic field and a pulsed magnetic field, the direct-current magnetic field penetrates through the metal melt from bottom to top, and the pulsed magnetic field penetrates through the metal melt from the side of the mold cavity. By means of the method, the high-quality integrated die casting can be manufactured.

The invention relates to the technical field of magnetic material injection molding, and discloses an injection molding magnetic powder orientation optimization method and system based on rheology-magnetic field coupling. The method comprises the following steps: deploying a distributed sensing network at key positions of a mold runner and a mold cavity, and synchronously capturing dynamic viscosity change gradient and magnetic field intensity space distribution of a melt in real time in a filling process. The captured data are input into a multi-physics field coupling simulation engine based on micromechanics, an instantaneous orientation vector field of the magnetic powder in the cavity is obtained through calculation, then an orientation order degree topological graph is constructed through tensor analysis and an image algorithm, and a weak orientation area and the boundary of the weak orientation area are accurately recognized. And finally generating a composite regulation and control instruction of the magnetic field and the injection parameters according to an identification result. According to the method, online diagnosis and active compensation regulation and control of the orientation state of the magnetic powder can be realized, and the orientation uniformity and consistency of the injection molding magnet are improved.

Devices, systems and methods for magnetic field coupling, as described herein, optimize magnetic coupling between transducers generating and detecting quasistatic magnetic fields by translating the generated and detected magnetic fields into a common frame of reference, such as the Earth's gravitational field. In general, a receiving device has knowledge of the strength and direction of a quasistatic magnetic field generated by a transmitting device, which allows the generated magnetic field to be measured and interpreted by the receiving device in the context of the common frame of reference. Such devices, systems, and methods may use magnetic coupling, for example, for proximity detection and / or for communication between devices. Magnetic coupling may be used for proximity detection, for example, by detecting a magnetic field having a defined magnetic field range and / or by measuring magnetic field strength and / or direction and determining distance and / or location.

The invention discloses a radiation structure, a quantum sensing system, a radiation assembly and a quantum sensing measurement method, and the radiation structure comprises a feed part which is suitable for sleeving the outer side of an objective lens and is covered with a microstrip line, and the microstrip line can generate a magnetic field; the coupling piece is suitable for being arranged at the top of the objective lens in the thickness direction of the radiation structure, the coupling piece comprises a first coupling piece body and a second coupling piece body, the first coupling piece body and the second coupling piece body jointly define a plurality of arc-shaped gaps arranged at intervals in the circumferential direction and jointly define a light hole, and the light hole is suitable for being arranged corresponding to the NV color center; and microwaves radiated by the coupling piece are used for exciting NV color center electron spin transition. Therefore, by arranging the feed piece on the outer side of the objective lens in a sleeving mode, the thickness of the radiation structure located between the objective lens and the bearing piece can be small (equal to or even smaller than 0.1 mm), the requirement for the freedom degree of distance adjustment between the objective lens and the bearing piece can be met, and a clear view can be found conveniently; a plurality of arc-shaped gaps which are distributed at intervals in the circumferential direction are defined by the coupling piece, and the coupling piece can form a strong alternating magnetic field under the influence of a magnetic field so as to provide microwave power meeting requirements.

The invention relates to the technical field of medical instruments, in particular to an electromagnetic needleless injector which comprises a shell, a nozzle assembly, a liquid storage assembly, a driving assembly and an intelligent control system. Firstly, a series excitation linear motor is adopted to replace a traditional needleless injector driven by a spring, and the problems that driving force is limited and elasticity is attenuated due to the spring are effectively solved. According to the series excitation linear motor, through excitation magnetic field coupling between the stator coil and the rotor coil in the motor, the rotor directly drives the plunger rod to do linear motion in the axial direction so as to complete injection, the structure is simpler, the direct drive type connection structure is adopted, the stability is higher, and force transmission is more accurate. In addition, an intelligent control system integrated in the needleless injector enables the needleless injector to be more intelligent, control precision is higher, operation is more convenient, the needleless injector can be wirelessly connected with a breeding cloud management system, rapid, accurate and painless injection of live pigs and other animals can be achieved, and breeding efficiency and injection safety are improved.

A three-phase wireless electric energy transmission device disclosed by the present invention comprises a three-phase inverter, a three-phase switch capacitor, a coil magnetic field coupling structure and a rectifier, the coil magnetic field coupling structure comprises a primary coil and a secondary coil which are arranged in mirror symmetry, the primary coil is provided with two layers, each layer comprises a three-phase coil, each phase coil occupies a 120-degree angle range of the circumference, and the rectifier is connected with the primary coil and the secondary coil. The two layers of coils form a staggered angle, each phase of switched capacitor of the three-phase switched capacitor comprises a first capacitor branch and a second capacitor branch which are arranged in parallel, the first capacitor branch is provided with a first capacitor, and the second capacitor branch comprises a second capacitor and a switch module which are arranged in series; the switch module adjusts the equivalent capacitance value of the second capacitor branch through the duty ratio and adjusts the transmission power of the three-phase wireless power transmission device. The invention further discloses a load power adjusting method of the three-phase wireless power transmission device, the transmission efficiency can be kept unchanged within the adjusting range, and soft switching can be achieved within the adjusting range.

The present invention relates to the field of magnetic material preparation and heat treatment technology, specifically a method for widening the heat treatment process window of a high magnetic permeability nanocrystalline strip. By gradient composition design and pulsed magnetic field coupling heat treatment, the initial magnetic permeability of the strip exceeds 220,000 and the heat treatment temperature range is widened to 400°C-600°C; the alloy composition is Fe73.5%, Cu1%, Nb3%, Si13.5%, B8.5%, Co0.5%, and during heat treatment, the temperature is first raised to 450°C at 15°C / min and a 0.8T pulsed magnetic field is applied to keep the temperature, and then the temperature is raised to 550°C for keeping the temperature, crystallizing to generate α-Fe(Si) nanocrystals and Co-B amorphous interface phase, with Co distributed in the form of solid solution. This method widens the heat treatment temperature range, improves the initial magnetic permeability of the strip, improves toughness to meet automated production, and reduces costs using existing equipment; the prepared strip has high magnetic permeability and good stability, is suitable for a variety of scenarios, and has good economic and social benefits.

The invention relates to the technical field of rare noble metal extraction, and discloses a multi-magnetic-field coupling rapid separation and extraction system and device for rare noble metals, and the system comprises a magnetic field activation module which is used for starting a liquid level controller to detect the liquid level height in a silicon carbide container; the distribution and intensity of a magnetic field in the molten metal are monitored in real time, and the induction intensity and frequency are dynamically adjusted; the metal droplet extraction simulation module is used for acquiring real-time data, constructing a metal droplet extraction model, and inputting the real-time data into the metal droplet extraction model for simulation to obtain optimal adjustment parameters; the optimal adjustment parameter module is used for adjusting coil current, magnetic induction intensity and frequency data parameters based on the optimal adjustment parameters; and analyzing the volume ratio of the precious metal liquid drops in the metal liquid, and if the volume ratio does not reach the standard, readjusting the metal liquid drop extraction model. Closed-loop control is formed, efficient and accurate separation of rare and precious metal liquid drops is achieved, and the automation level and stability of the whole extraction process are improved.

Techniques for a wirelessly powered remote switch are disclosed. A power-receive unit receives wireless power when coupled to a power-transmit unit via a magnetic field. The power-receive unit includes one or more input mechanisms that, when actuated, close a switch to enable electric current to flow through an electrical component and a timer. Closing the switch causes an impedance shift at a coil of the power-receive unit based on an impedance of the electrical component according to a frequency defined by the timer. The frequency is detectable by the power-transmit unit to trigger a function.

The invention discloses an annular underwater magnetofluid thruster modeling method, and relates to the technical field of underwater thrusters. In order to solve the problems that in the prior art, modeling is mainly carried out on parts of an aero-engine, the performance of a propeller can be affected in an underwater environment, and performance changes of the propeller under different working conditions are difficult to effectively predict due to the influence of a fluid-magnetic field coupling effect. According to the method, through refined hydrodynamic modeling, magnetic field analysis and fluid-magnetic field coupling processes, performance prediction and optimization of the propeller in a complex underwater environment are realized, and influence factors such as corrosion, wear and complex hydrodynamic characteristics can be effectively coped with; according to the method, accurate prediction and optimization of key performance parameters such as thrust and efficiency under different working conditions are ensured, the precision and reliability of the model are further improved through experimental verification and feedback optimization, and the dynamic response analysis and multi-working-condition performance evaluation requirements of the underwater propeller in actual engineering application are met.

The invention relates to the technical field of permanent magnet motors, in particular to a double-rotor hybrid excitation magnetic flux switching permanent magnet motor with double-C staggered teeth and magnetic flux leakage control, which comprises an outer rotor, a middle stator and an inner rotor, the middle stator is arranged between the outer rotor and the inner rotor, a plurality of first salient poles are uniformly distributed on the outer rotor, and a plurality of second salient poles are uniformly distributed on the inner rotor. A plurality of second salient poles are uniformly distributed on the inner rotor; the middle stator comprises m double-C staggered tooth type iron cores, m rectangular leakage magnetic iron cores, n tangentially magnetized I-type permanent magnets, an armature winding, a first set of excitation windings and a second set of excitation windings. The advantages of compact structure and high working efficiency of a double-rotor magnetic flux switching permanent magnet motor are reserved, an air-gap magnetic field is smooth and adjustable by adding the electro-magnetic winding, the problem of magnetic field coupling when the inner motor and the outer motor work simultaneously is effectively solved, the speed regulation range when the inner motor and the outer motor work independently is widened to a certain extent, and the service life of the motor is prolonged. Meanwhile, the leakage magnetic iron core is added, so that the problems of strong permanent magnetic potential and difficulty in flux weakening are solved.

The invention discloses an anti-offset wireless charging system magnetic coupling mechanism and an optimization design method. A transmitting end of the magnetic coupling mechanism adopts a coil of a bipolar reverse high anti-offset structure, and a receiving end adopts a circular plane spiral coil to reduce the weight of a vehicle-mounted end energy pickup mechanism; the transmitting end bipolar reverse high-anti-offset structure is formed by winding uninterrupted litz wires, an outer ring coil and an inner ring coil are located on the same plane and concentric, and the manufacturing directions are opposite, so that the bipolar reverse characteristic is formed. The transmitting end bipolar reverse high anti-offset structure coil also adopts an anti-offset particle swarm optimization design method considering receiving end plane movement mutual inductance smoothness and coil wire length, and under the condition of considering the transmitting end coil wire length, the magnetic field coupling uniformity in the 360-degree plane movement process of the receiving end is improved. The magnetic coupling mechanism provided by the invention has good anti-offset performance, and still has stable magnetic field coupling characteristics in a large-range moving process of a receiving end.

Disclosed in the present invention are a multi-cell digital light processing printer and printing method based on "light field-magnetic field" coupling control. According to the present invention, a magnetic field generating device is coupled to a stereolithography device, and a magnetic field is used for controlling material change of microspheres carrying different cells and having different magnetic contents in a container, so that the material change process and the printing process are carried out in parallel, thereby improving the printing efficiency; and a single container is used for contactless material change, so that cross contamination is reduced, and a multi-cell biological structure can be manufactured in a high-precision, high-efficiency and high-cell-viability manner.

The invention relates to the technical field of electric signal transmission, and discloses a magnetic field coupling electric signal transmission method, system and device, a medium and a product, and the method comprises the steps: building transmission models of a receiving end and a transmitting end; and detecting the pipe wall barrier thickness of the to-be-transmitted target, substituting the pipe wall barrier thickness into the transmission model, and obtaining preset coil turns of the receiving end and the transmitting end. And determining the coil turns of the receiving end and the transmitting end according to the preset coil turns. And acquiring magnetic field signal intensity between the receiving end and the transmitting end, and determining whether to adjust current intensity between the receiving end and the transmitting end according to the magnetic field signal intensity and preset magnetic field signal intensity. According to the invention, by dynamically adjusting the coil turns and the current intensity of the receiving end and the transmitting end, the optimization of signal transmission is ensured, so that the transmission efficiency and the transmission stability are improved.

The invention relates to the technical field of target sputtering, in particular to laser and glow plasma magnetron sputtering equipment and method.The laser and glow plasma magnetron sputtering equipment is characterized in that a target is in a hollow cylindrical shape and transversely connected to a target support in a sleeving mode, a base frame is transmission shafts arranged in the width direction in a sputtering cavity, and a base material is conveyed along the multiple sets of transmission shafts; a magnet assembly is arranged at the top end in the target support and used for forming a glow plasma area on the outer side of a target material, laser beams emitted by the laser irradiation assembly irradiate the reflector assembly, the reflector assembly rotates in different directions so that the laser beams can be reflected to the glow plasma area, cooperative sputter coating is achieved, and the target material is coated with the glow plasma area. Different forms of coating effects are achieved through mutual influence and interaction of laser beams and glow plasmas or sputtered target material atoms, the laser and the magnetic field are coupled, the sputtering voltage can be reduced, the temperature of a base material can be reduced, damage of sputtering ions to a substrate film layer can be reduced, the battery efficiency can be improved, and the film forming quality can be improved.