40 results about "Electromagnetism" patented technology

The invention provides an electromagnetic field prediction method and device and electronic equipment, and relates to the technical field of electromagnetic field solving. The method comprises the following steps: acquiring historical electromagnetic original data in a field-line coupling scene, preprocessing the historical electromagnetic original data, inputting the preprocessed historical electromagnetic original data into an LSTM-PINN model, and outputting a physical field quantity mapping result; wherein the physical field quantity comprises an electric field component and a magnetic field component; setting a weighted loss function, and performing optimization training on the LSTM-PINN model based on a physical field quantity mapping result and an error of a real physical field quantity corresponding to historical electromagnetic original data to obtain a trained electromagnetic field prediction model; wherein the weighted loss function comprises a data loss function, a physical residual loss function, an initial condition loss function and a boundary condition loss function; and inputting real-time electromagnetic original data into the trained electromagnetic field prediction model to obtain a spatio-temporal distribution electromagnetic field prediction result. The method can effectively extract the spatial distribution features and the time sequence features at the same time, and is suitable for a complex field-line coupling problem.

The invention belongs to the technical field of geological engineering monitoring and multi-physics field intelligent sensing, and discloses a separation grouting slurry migration monitoring method and system, and the method comprises the steps: constructing an acoustics-optics-electricity-electromagnetism multi-physics field coupling monitoring system; a grouting hole and a monitoring drilling hole array are arranged in a target stratum, a distributed optical fiber sensor, a drilling hole ultrasonic imager, a resistivity measuring device and a transient electromagnetic detection device are installed, and a three-dimensional monitoring network is formed; synchronously acquiring sound field, light field, electric field and magnetic field data; four-field monitoring data and overlying strata multi-parameter observation data are fused, a coal seam mining three-dimensional overlying strata separation model is constructed, and a slurry diffusion three-dimensional visualization model is generated through numerical simulation; and based on the four-field monitoring response difference of the separation space before and after grouting, in combination with a monitoring frequency domain correction model of multiple indexes of grout diffusion, the diffusion range, compactness and filling effect of the grouting grout are evaluated, and abnormal early warning is triggered.

The invention discloses a microwave device multi-physics field optimization method taking electromagnetism as a center based on a feature assistance and proxy model. The method comprises the steps of setting initial values of geometric design variables and multi-physics field design variables; the multi-physical field response with electromagnetism as the core responds at the solution point {xg, xm}, multiple pieces of parallel multi-physical field data are generated, and f represents the frequency; according to the multi-physics field data, constructing a feature-assisted multi-physics field agent model based on a neural network transfer function, and calculating a gradient optimization derivative of the feature-assisted multi-physics field agent model; and on the basis of the gradient optimization derivative and the optimization feature auxiliary multi-physics field agent model, obtaining an optimal solution of the variable. According to the method, the robustness and optimization design efficiency of a microwave device multi-physics field optimization algorithm taking electromagnetism as a core are improved.

The present disclosure provides systems and methods for detecting and mapping a subsurface object. The system includes a set of transmitters configured to emit a primary electromagnetic field, a set of receivers spatially separated from the transmitter and configured to detect a secondary magnetic field generated by the subsurface object in response to the primary electromagnetic field, and a processor operably connected to the transmitter and the receivers. The processor is configured to control the transmitter to generate the primary electromagnetic field, generate a data signal based on the secondary magnetic field detected by the receivers, and analyze the data signal to determine characteristics of the subsurface object based on the processed signal.

The invention discloses a pyrolytic particle detection device, which relates to the technical field of fire detection and comprises an air pump, a heating cavity, a conducting electromagnetic valve, a refrigeration cavity, a laser detection cavity, an exhaust electromagnetic valve, a weak photoelectric pulse signal processing unit, a comprehensive control and data processing unit and an RS485 communication unit. The sucking pump, the heating cavity, the conduction electromagnetic valve, the refrigeration cavity, the laser detection cavity and the exhaust electromagnetic valve are sequentially connected through 8 mm silica gel air pipes to form a complete air path system; the invention provides a pyrolytic particle detection device which can accurately detect pyrolytic particles in air in real time, can digitally display the content of the detected pyrolytic particles, can avoid interference of environmental factors such as dust, water mist, strong light and electromagnetism, and provides an effective detection device for extremely early warning of a fire hazard. And sufficient favorable time for several hours is provided to control combustion conditions, so that event expansion is avoided.

The utility model relates to an electromagnetic field fresh-keeping cabinet, which belongs to the field of fresh-keeping cabinets and comprises a refrigerating box. The mounting assembly is arranged on the upper surface of the refrigeration box in a communicating manner; the electromagnetic mechanism is arranged on the inner side of the mounting assembly; the loading assembly is detachably arranged on the inner side of the mounting assembly and comprises a loading box which is detachably arranged on the inner side of the mounting assembly; the two connecting plates are respectively arranged on the left side and the right side of the charging box; and the two handles are respectively arranged on the upper surfaces of the two connecting plates. According to the electromagnetic field fresh-keeping cabinet, electromagnetism in the fresh-keeping cabinet can be monitored through the arranged electromagnetic mechanism, so that the use safety of the electromagnetic field fresh-keeping cabinet is guaranteed, meanwhile, under the action of the loading assembly, meat food can be rapidly taken out of the mounting box, and therefore workers can rapidly clean the interior of the mounting box; and under the action of a shielding plate, electromagnetism can be blocked, so that the use safety of the electromagnetic field fresh-keeping cabinet is improved.

The application discloses a magnetic moment comparator device and a measuring method. The magnetic moment of a current-carrying standard coil is proportional to the magnetic field generated at a fixed distance on the axis, and according to the principle of equivalence between the magnetic dipole layer and the current-carrying coil in electromagnetism, the magnetic moment of the magnetic sample at the same position can be measured by the current-carrying standard coil when the spatial magnetic field can be accurately measured. The application designs a magnetic moment comparator in a magnetic shielding cylinder, uses an atomic magnetometer to measure the absolute magnetic field with high sensitivity, places a current-carrying standard coil at a distance r0 on one side of the atomic chamber along the background magnetic field direction, and the axis is parallel to the background magnetic field direction; the magnetic moment direction of the magnetic sample is parallel to the background magnetic field direction, when the magnetic sample is moved to the position of the atomic chamber at a distance r0 on the other side of the atomic chamber by a sample transmission rod, the current flowing into the standard coil is changed in real time under the condition that the background magnetic field remains unchanged, and then the magnetic moment of the magnetic sample is equal in size and opposite in direction to the magnetic moment of the current-carrying standard coil.

The anti-magnetic cable comprises a cable core, the side surface of the cable core is fixedly connected with an insulating layer, the side surface of the insulating layer is fixedly connected with an anti-magnetic layer, and the side surface of the anti-magnetic layer is fixedly connected with an outer sheath; the side surface of the magnetic ring is fixedly connected with a connecting rod, the side surface of the connecting rod is in threaded connection with an extension rod, the end, away from the connecting rod, of the extension rod is rotationally connected with a rotating block, the inner side face of the rotating block is in threaded connection with a threaded rod, and one end of the threaded rod is fixedly connected with a connecting block. Through the components, the antimagnetic layer can be used for isolating electromagnetism, converting electromagnetic radiation into heat and improving the anti-interference effect, the insulating layer with good heat insulation performance is used for protecting the internal cable core, the heat generated by the antimagnetic layer is effectively isolated, the influence on the cable core is avoided, the magnetic ring can be used for inhibiting electromagnetic interference, and the anti-interference effect is improved. And the extendable extension rod is arranged between the two groups of magnetic rings, so that a certain distance is kept between the cables, and mutual interference is prevented.

The utility model discloses a magnetoresistive sensor with a conductive slip ring and a measurement experiment instrument of a geomagnetic field, which comprises a fixed working plate with an angle, a limiting ring is fixed on the lower wall surface of the working plate, a locking nut is arranged on the limiting ring, a fastening jackscrew is arranged on the locking nut, a ring groove is arranged on the working plate, and the conductive slip ring is arranged in the ring groove. A ring groove is formed in the working plate, a rotating steel ball is installed in the ring groove, a coil rotating table is installed in the working plate, and the coil rotating table is in lap joint with the rotating steel ball. A magnetoresistive sensor with a conductive slip ring and an experimental instrument for measuring a geomagnetic field are suitable for one of experimental instruments for measuring a weak magnetic field in an electromagnetic physical experiment of higher hospital science, and a precise angle measuring device of the instrument adopts the conductive slip ring, so that the instrument can rotate by 360 degrees without hindrance during angle measurement, and a measuring wire is not cut off; and the measurement is more convenient.

The utility model discloses a miniaturized high isolation degree coupler relates to the field of coupler, including the casing and the magnetic core, the lateral wall of casing adopts recessed structure to set up, the magnetic core sets up at the recessed position department of casing's lateral wall, the lateral wall of casing and be located the recessed position department is equipped with the protection isolation cover that will the magnetic core block, the protection isolation cover includes the upper cover body and lower cover body of magnetic adsorption setting, the inside of upper cover body and the inside of lower cover body all are equipped with the shielding layer. The utility model discloses have high isolation degree structure, avoid the interference that the outside world's electromagnetism causes to the magnetic core, avoid signal crosstalk and the phenomenon of error code simultaneously, thereby make the coupler can be accurately detected, in addition, have good heat conduction performance, improve the stability of coupler use.

The invention relates to the cross technical field of computational electromagnetism and precision permanent magnet device design, in particular to a method for improving the nonuniformity of a magnetic disk space magnetic field, and aims to solve the problems that a method for improving the uniformity of a magnetic field in the prior art is low in optimization efficiency and difficult to break through the uniformity bottleneck caused by angular harmonic waves and a structural coupling effect. According to the scheme, the method comprises the steps that an accurate finite element model containing seven circles of fan-shaped magnets, a parallel magnetic disk, an eddy current disk and an iron support is established in Opera3D, and meshing and solving are carried out; in the first stage, the structural height of the iron stand is optimized through parameterized scanning, and the optimal height parameter is determined; and in the second stage, on the basis of the optimal iron stand height, the outermost two circles of the magnetic disk are set as NdFeB. The non-uniformity deviation (delta B) of the magnetic field of the target spherical area can be reduced by 13%, and the method is suitable for high-precision scenes such as nuclear magnetic resonance and synchrotron radiation light sources and has the advantages of being efficient in design and high in repeatability.

The invention belongs to the technical field of electromagnetism experiment teaching instruments, and particularly relates to a demonstration experiment device and method for verifying the Biot-Savart law. The device is reasonable in design, the geomagnetic field serves as a reference magnetic field, indirect measurement of the magnetic induction intensity around the current-carrying wire is achieved by measuring the deflection angle of the magnetic needle under the action of the current-carrying wire according to the vector superposition principle of the magnetic field, a traditional measurement mode depending on a Hall sensor or a fluxmeter is replaced, and the measurement accuracy is improved. A measurement basis is provided for a verification experiment of the Biot-Savart law; the device is structurally composed of an angle positioning bottom plate, a current-carrying wire assembly and a magnetic needle measuring assembly, the relative magnetic induction intensity is obtained through visual angle reading, and data calculation is achieved in combination with the magnetic field vector superposition relation. By measuring the relationship between the magnetic induction intensity on the symmetry axis of the current-carrying bent conductor and the vertical distance, the current magnitude and the bending angle, experimental verification demonstration of the Biot-Savart law is realized.

The invention relates to the technical field of coal mine safety mining and roof disaster prevention and control, and discloses a roof directional long drill hole hydraulic fracturing multi-parameter effect discrimination method, which comprises the following steps of: firstly, constructing a multi-element heterogeneous integrated comprehensive discrimination system, and arranging micro-seismic, transient electromagnetic, drill hole peeping, bracket resistance and other monitoring units; acquiring surrounding rock background data before fracturing; real-time dynamic monitoring is carried out by utilizing pressure flow, reverse water and micro-shock during fracturing; carrying out static comparison and judgment by utilizing transient electromagnetism and peeping after fracturing; and the pressure relief effect is verified through support resistance and micro-seismic data in the stoping stage. And finally, performing cross validation from the dimensions of fracturing radius, pressure relief effect and water injection effectiveness based on multi-parameter data. According to the method, double-time-period accurate monitoring during fracturing and recovery is achieved, the limitation of single-means evaluation is overcome, and the comprehensiveness and accuracy of roof fracturing effect judgment are improved.

The invention belongs to the technical field of nuclear medicine and electromagnetism crossing, and particularly relates to a rapid scanning magnet for proton beam homogenization of a boron neutron capture therapy system based on a high-current cyclotron, which comprises a magnet yoke and a magnet exciting coil, wherein the magnet yoke is made of ferrite, the height of the air gap is determined by matching according to the outer diameter of the beam vacuum tube, and the proton beam vacuum tube is a large-diameter beam channel determined by taking the inner diameter of the proton beam vacuum tube as a target to meet the requirements of proton beam scanning targeting, beam halo expansion and collimation error; the two groups of excitation coils are respectively arranged on two opposite magnetic pole surfaces in the magnetic window and are positioned on the two sides of the air gap; the proportion of the magnetic pole face width and the air gap height of the magnet yoke and the size and the space layout of the magnet exciting coil meet the condition that the integral field uniformity deviation in a good field area is smaller than 1%. The problems of high temperature rise, slow magnetic field response and integral field uniformity degradation caused by an eddy current effect of a scanning magnet under a rapid excitation condition in an existing BNCT system can be solved.

The invention discloses an anti-interference differential polarimeter, which belongs to the technical field of optical measurement instruments, organically combines magneto-optical modulation with a polarization difference method for the first time, solves the problem of weak optical rotation signal detection in an open environment, has a lower glucose solution measurement limit of 0.020 g / mL, has greatly improved anti-interference capability compared with a traditional polarimeter, and has a wide application prospect. For solutions with different concentrations, the average error is maintained at a lower level of 3.25%, not only can light source fluctuation and ambient light interference be overcome and stable measurement be realized, but also subjective judgment of human eyes can be eliminated and objective quantitative reading can be realized. According to the invention, accurate measurement of a glucose solution in a range of 0.020-0.400 g / mL can be realized, automatic data acquisition and real-time concentration display are realized, and the system integrates electromagnetism, optics and information science, can be used as an ideal platform for college physical experiment and common physical experiment teaching, and has a wide application prospect. The method can also be popularized to measurement of physical quantities such as magneto-optical Kerr effect, weak magnetic field and micro displacement, and is wide in application prospect.

The application discloses a ferromagnetic material suspension locking method of a static permanent magnetic array. It relates to the technical field of mechanics and electromagnetism. The method comprises the following steps: determining the structure and size of a certain number of magnetic units and composing a ring-shaped magnetic array, the centroids of all the magnetic units are in the same plane and are uniformly distributed along the circumference; the polar directions of adjacent magnetic units are alternately directed to the center direction and the circumferential tangent direction, when a plurality of magnetic units are arranged clockwise along the ring-shaped magnetic array, each magnetic unit is counterclockwise rotated by a fixed angle in the plane of the ring-shaped magnetic array compared with the previous magnetic unit, a magnetic array of an axisymmetric composite magnetic field is formed, and a magnetic array ring with the suspension locking characteristic is obtained. The application can be used for the rapid docking between large mass bodies, for example, the application of the application to the docking of a space station can avoid complex attitude adjustment, and even if deviated, the application can be quickly locked.

The utility model discloses a random drive device, including the casing, is equipped with the installation cavity and the rolling cavity, random drive subassembly, including electromagnetic drive part, magnetic rolling part and magnetic driven part, electromagnetic drive part installs in the installation cavity, magnetic rolling part installs in the rolling cavity, and magnetic driven part is used for connecting with the object to be driven, electromagnetic drive part is used for electromagnetism drive magnetic rolling part and rolls in the rolling cavity, and the rolling of magnetic rolling part can drive magnetic driven part swing through magnetic force, to drive the object to be driven swing. Because random drive device is equipped with random drive subassembly, and electromagnetic drive part can drive magnetic rolling part rolls through the magnetic field of electromagnetism, and then can drive the object to be driven swing, and magnetic rolling part rolls in the rolling cavity, and the freedom degree of movement is high, and the randomness is high, can drive the object to be driven swing more randomly, improve the reality of flame simulation piece movement, and then improve the ornamental.

The invention discloses a combined advanced detection method based on borehole transient electromagnetism and direct-current resistivity, and the method comprises the steps: laying an advanced borehole in a tunnel face in a tunneling direction, carrying out the collection of borehole transient electromagnetic data, and carrying out the inversion, and obtaining a borehole transient electromagnetic inversion result; according to an inversion result and a corresponding estimation method, calculating to obtain Gaussian variation models in three main axis directions, and expanding the Gaussian variation models to any direction; then, the Gaussian variation model in any direction is substituted into a covariance calculation formula, a covariance value between any two grid units in the area needing to be detected is obtained through calculation, and a covariance constraint matrix is assembled; and finally, introducing the matrix as a regularization item into an inversion objective function of direct-current resistivity advanced detection to realize covariance constrained direct-current resistivity inversion, so that the inversion stability and the inversion imaging precision of the direct-current resistivity advanced detection are remarkably improved, and the method is suitable for scenes such as tunnel face or coal mine underground tunneling advanced detection and the like.

The application discloses a method for adjusting the depth of a magnetic well in the process of evaporation cooling by means of an electric field, comprising the following steps: Step 1: preparation of a molecular state, wherein a molecule is prepared in an IBr molecular hyperfine level X 1 Σ state (J=0, G=2.5, F=4) |4, -4> state; Step 2: preparation of a magnetic well, wherein a set of anti-Helmholtz coils are used, equal current is passed through the coils in opposite directions, the magnetic field is equal to zero at the midpoint of the two coil axes, and an approximately linearly changing magnetic field is generated along the axis direction on both sides of the midpoint, at this time, the magnetic field distribution along the axis direction is similar to a magnetic well; Step 3: adjustment of the depth of the well, wherein two electrodes are placed on the sides of the two coils, direct current is passed through the electrodes, and the depth of the well is changed by adjusting the electric field intensity. In the process of molecular evaporation cooling, the method combines electromagnetism, quickly changes the depth of the magnetic well by adjusting the electric field intensity, achieves the purpose of evaporation cooling, and obtains cold molecules with a higher concentration.

The invention relates to the technical field of ring main units, discloses an electromagnetic shielding and heat dissipation integrated ring main unit, and aims to solve the problems of interference of external electromagnetism on electrical devices in the ring main unit and waste caused by direct discharge of environment-friendly gas. Through the arrangement of the heat dissipation mechanism, when the temperature in the electrical cavity reaches a certain value, the upper piston plates in the left cavity and the right cavity move in opposite directions, so that environment-friendly gas with certain heat in the electrical cavity is sucked into the heat dissipation cavity, low-temperature environment-friendly gas in the heat dissipation cavity enters the electrical cavity, and through the action, the heat dissipation efficiency is improved. And meanwhile, the cabinet body is made of stainless steel plates, and the stainless steel plates are high in conductivity and can generate strong reflection loss, so that external high-frequency electromagnetic radiation is effectively blocked, and an electromagnetic shielding function is further realized.

This invention belongs to the field of computational electromagnetics, specifically a method for transforming a one-dimensional axial magnetic field into a three-dimensional axisymmetric magnetic field. This invention uses two variable-step-size, four-point numerical differential calculations followed by averaging to approximate the first derivative at the point to be calculated. This avoids the problem that calculating four points once might not improve accuracy, and also avoids the overly complex formula of directly using five points. Furthermore, by using the approximate value of the first derivative at known coordinates combined with Spline curve fitting to estimate the approximate value of the first derivative at the point z to be calculated, the problem of error superposition is effectively avoided, resulting in a higher accuracy for the radial component B of the calculated three-dimensional axisymmetric magnetic field. r The results are closer to the theoretical values. This invention effectively solves the problems of low accuracy and error accumulation in the transformation from one-dimensional axial magnetic field to three-dimensional magnetic field, and provides strong support for magnetic field loading in the design of devices such as vacuum electronic devices, ion sources, and particle accelerators.

The application belongs to the field of electromagnetism, and particularly relates to a kind of time domain finite difference method open field simulation high-order perfectly matched layer implementation method and system, aims at solving how to avoid the problem of cascade solution and parameter coupling in PML under the same algorithm consumption as existing high-order PML. The method comprises: constructing PML tensor, the inverse of which is the weighted sum of the inverses of multiple complex frequency shift PML sub-tensors; constructing PML auxiliary variables based on PML tensor and Maxwell equations, including electric field component coupling auxiliary variables and magnetic field component coupling auxiliary variables; updating PML auxiliary variables using recursive convolution method or auxiliary differential equation method, and updating electric field intensity components and magnetic field intensity components according to the updated PML auxiliary variables. The time domain finite difference method open field simulation high-order PML implementation method and system provided in the application effectively overcome the defects of existing high-order PML cascade solution complexity and parameter coupling under the same algorithm consumption.

The utility model relates to the technical field of FFC (Flexible Flat Cable) production, in particular to an anti-electromagnetic interference test structure of an FFC. The utility model relates to an anti-electromagnetic interference test structure of an FFC (Flexible Flat Cable). The anti-electromagnetic interference test structure comprises an anti-electromagnetic cabinet body; the cabinet door is rotationally connected to one side of the cabinet body through a rotating shaft; the detection assembly is used for detecting electromagnetism, the detection assembly comprises a first EMI monitoring sensor and a second EMI monitoring sensor, the first EMI monitoring sensor is arranged on the outer side of the cabinet body, and the second EMI monitoring sensor is arranged on the inner side of the cabinet body. The beneficial effects of the utility model are that by adopting the anti-electromagnetic interference cabinet body, the influence of external electromagnetic waves is effectively shielded, it is ensured that the external electromagnetic interference does not interfere with the accuracy of a test result when an anti-electromagnetic interference test is carried out on the FFC, the reliability of the test is improved, the external electromagnetic interference is effectively shielded, and the test reliability is improved. And meanwhile, electromagnetic waves generated in the cabinet body can be inhibited.

The utility model belongs to the technical field of display, and particularly relates to a display module and a display device.The display module comprises a display assembly and a shielding layer, the display assembly comprises a display area and a non-display area and is suitable for the display area to display at least part of preset target visual information, and the shielding layer covers the display area and at least part of the non-display area; the electromagnetic shielding module is suitable for intensifying electromagnetic shielding of a first space where the display assembly is located; the electromagnetic shielding function of the display module can be enhanced, and the influence of electromagnetic radiation of the display module and external electromagnetism on normal operation of the display module can be reduced; according to the method, the multiple display modules are spliced, so that the side faces of the display modules abut against one another, the display areas of the multiple display modules are coplanar, the area image of the corresponding area is displayed through the display area of each display module, and the complete preset target image is presented through splicing of the multiple corresponding area images.

The invention belongs to the technical field of digital design of Roots blowers, and particularly relates to a digital design method of a Roots blower based on multi-physics field coupling simulation. The method comprises the following steps: firstly, establishing a multi-scale parametric geometric modeling system comprising a rotor, a shell, a wallboard, an oil tank, a hub and a base, constructing aerodynamic, structural mechanics, electromagnetism and thermal numerical models on the basis of a geometric model, and defining interface conditions of aerodynamic load and structural deformation, electromagnetic loss and temperature distribution, and structural modal and acoustic boundary; and data transmission and iterative calculation among multiple physical fields are realized. An iteration method is adopted to ensure convergence of a nonlinear coupling relation, a performance database is established, input parameters, aerodynamic efficiency, structural stress, electromagnetic loss, temperature distribution and noise distribution are correspondingly stored to generate a parameter set, finally, a digital design file is verified and output through a virtual prototype, and the complete process from modeling, calculation, optimization to verification is achieved.

The invention relates to the technical field of transformer substations, and discloses a method, a system, equipment and a medium for designing a core bearing module of a transformer substation monitoring terminal under an electric red-hong system, and the method comprises the steps: collecting the electromagnetic interference intensity, the mechanical vibration acceleration, the physical length of a twisted pair, the vibration frequency and the environment illumination intensity of a transformer substation site; calculating the transmission delay of the control signal and the imaging definition of the image acquisition unit based on the parameters; when the imaging definition is lower than a preset threshold value, optimizing a light supplementing parameter by combining the transmission delay and the environment illumination intensity, and synchronously adjusting a shielding structure and a vibration reduction structure of the twisted pair; through a multi-parameter linkage feedback mechanism, the structure self-adaptive optimization of the core bearing module under the condition of coupling of strong electromagnetism, vibration and low illumination is realized, the synchronism, definition and stability of a monitoring picture are guaranteed, and the high-quality video input requirement of an electric red-eng system for AI image analysis is met.

The present application relates to the technical field of fault prediction, in particular to a kind of meteorological disaster fault analysis method and system of electric power equipment, comprising the following steps: obtaining the real-time wind speed, wind direction and air pressure data acting on transmission line and insulator string, calculating the tension vector and spatial displacement of transmission line under wind load, generating the real-time swing coordinates of the line, and substituting the X-axis, Y-axis and Z-axis components of the real-time swing coordinates of the line into the spatial position analytical matrix.In the present application, the air breakdown voltage threshold under the current environment is calculated by combining real-time air pressure data and applying the Bashen law ionization formula, the grid operating phase voltage is compared with the dynamic physical threshold by difference, the multi-physical field coupling diagnosis logic is constructed by fusing meteorology, mechanics, electromagnetism and insulation physics, the real-time and accuracy of transmission line windage discharge fault diagnosis under complex environment such as strong wind are improved, and the limitation that single electrical quantity monitoring is difficult to represent environment-induced fault is overcome.

The application discloses a kind of magnetic field devices based on capacitance, comprising: high voltage power supply module of charging to the discharge module of capacitor, after charging, the pulse signal of pulse generator device generates and controls the discharge process of capacitor charging and discharging module, waveform conditioning and protection module, electric signal monitoring and matching module, current commutation module, the magnetic field generation module of the corresponding magnetic field signal of the pulse excitation formed by capacitor discharge.The amplitude of capacitor charging voltage and the pulse width of trigger pulse control pulse signal characteristics, and then control the strength and duration of magnetic field signal, the device can realize controllable intensity high, time domain characteristics good magnetic field signal, while realizing the protection of device, signal monitoring and magnetic field direction change and other functions, solve the problem that current in electromagnetism related experiment is difficult to obtain stable superhigh superfast magnetic field, can provide various types of magnetic field signal, carry out various magnetism and spin electronics research experiment.

The utility model discloses an integrated electromagnetism science popularization teaching aid, which is characterized by comprising a transparent box body, a base arranged in the box body and an electrical module arranged on the box body, the electricity module comprises a Tesla coil arranged on the upper portion of the box body, a kite arranged in the box body, a metal wire connected with the kite and a first bulb arranged on the base and connected and conducted with the metal wire. A whole set of electromagnetism experiments including the electricity module, the magnetism module, the electricity-to-magnetism module and the magnetism-to-electricity module are integrated in the transparent box body, the integrated arrangement is small in occupied space and convenient to carry and store, operation of the whole set of electromagnetism experiments is facilitated, a platform for exploring the electromagnetic world in an omnibearing and multi-angle mode is provided for students, and the teaching experience of the students is improved. The teaching aid is not only suitable for high school physics teaching, but also is an ideal choice for science popularization exhibition and scientific education activities, and students can personally experience charm of electromagnetism and stimulate interests of exploring scientific secrete through elaborately designed experiment content and situation simulation.