25 results about "Ampere" patented technology

The invention relates to an unbalance constraint-based ampere-turn adjuster and a coordination system thereof, which comprise an execution coil group, an execution controller, a first detection module and a communication module, generate a corresponding matching strategy according to a matching request, analyze a response magnetic field waveform to generate a relative position coordinate, and send the relative position coordinate to the execution controller. A deviation evaluation algorithm is configured for calculating a deviation vector corresponding to the actually measured magnetic field deviation, and when the deviation vector meets a static correction condition, a static correction strategy is executed to generate a deviation allocation instruction so as to adjust a control signal of a corresponding target ampere-turn adjuster; and when the deviation vector meets a dynamic correction condition, executing a dynamic correction strategy to generate a position correction instruction so as to correct the relative position coordinates corresponding to the target ampere-turn adjuster. Through introduction of the magnetic field distribution sub-model and the feedback execution sub-system, the efficiency and precision of magnetic field adjustment are further improved, and accurate adjustment is realized in a complex magnetic field environment.

The utility model relates to an experimental device for verifying the Ampere force law, which comprises a direct-current power supply, a high-power resistor, two metal electrodes respectively serving as a positive electrode and a negative electrode, a bracket, a precise length measuring tool, two opposite magnets, a container filled with conductive liquid and a high-precision electronic scale, the direct-current power supply is used for providing a power supply in an experiment; the high-power resistor is used for limiting the maximum current in the circuit and preventing the circuit from being short-circuited due to over-low loop resistance; the two metal electrodes which are respectively used as a positive electrode and a negative electrode are used for providing current for the conductive liquid which is used as a current carrier and conducting the whole circuit; the metal electrode is electrically connected with the high-precision direct-current power supply and the high-power resistor; the two opposite magnets are used for providing a magnetic field; the container filled with the conducting liquid is used for containing the conducting liquid serving as a current carrier and bearing Ampere force borne by the conducting liquid in a magnetic field.

The invention discloses a processing method and device based on current density, a storage medium and electronic equipment. Relates to the field of electronic information, and the method comprises the steps: collecting the magnetic field data of a target device, and the target device comprises a crimping type device; based on the Ampere's law, reconstructing the magnetic field data to obtain the current density of the target device; and analyzing the current density to obtain current distribution data of the target device. According to the invention, the technical problem that the damage degree of the crimping type IGBT device is high because the current distribution data can be measured only by destroying the tube shell of the crimping type IGBT device in the prior art is solved.

The invention relates to the technical field of power electronic component manufacturing and advanced composite material application, in particular to a 3D inductor based on the Ampere's law and a method thereof. The three-dimensional precise interlocking winding comprises a functional composite framework, a three-dimensional precise interlocking winding and a magnetic core assembly, according to the system, a framework is formed by compositing a heat-conducting insulating substrate and soft magnetic powder, and air gaps between winding layers are physically filled through step-shaped positioning ribs; the core is that a low-thermal-resistance export path is established by utilizing the high heat conduction characteristic of the framework, and a heat conduction mode is converted from coil-to-air to coil-to-framework; the gradient difference between the core temperature and the surface temperature in the coil is effectively reduced through the embedded heat dissipation array, the heat dissipation problem under the high power density is solved, and the device performance is remarkably improved.

Various Freight left hand rules (motor rules), right hand rules (engine rules), Ampere rules 1, Ampere rules 2 (right hand spiral rules), Lorentz forces, Ampere forces and the like exist in the fields of electrotechnics, electromagnetics, optics and the like and are used for judging current, magnetic fields and acting force directions. And memory disorder of students and technicians is easily caused. The electronic magnetic pole and the spinning direction (figure 1 in the specification) are marked by using an electronic spinning right-hand rule expression method, and all the rules and forces can be replaced and unified. And three breakthrough discoveries are caused: (1) an electron magnetic pole and a spinning direction rule are caused; and (2) the electromagnetic field is the expansion, static and retraction type expression of the electronic ring. And (3) the expansion type electronic ring has the characteristics of electromagnetic wave (including light wave) particles, fluctuation, electromagnetism, quantum and the like, and solves the optical hundred-year competition problem. And more electronic equipment and products can be developed according to the'electron spin right hand rule '.

The utility model relates to the technical field of electrical measurement, and discloses a novel mutual inductor volt-ampere characteristic tester which comprises a tester body, a fixed base is arranged on the side surface of the tester body, and the upper side and the lower side of the two ends of the fixed base extend outwards and are provided with bolt insertion holes. And the outer surface of the tester body is provided with a screw hole corresponding to the size of the interior of the bolt insertion hole, and the limiting lantern ring of which the position can be adjusted is arranged, so that the tail end of a wire is clamped in wire clamping grooves formed in the upper side and the lower side of the limiting lantern ring in the middle of the winding column after the wire is wound; the head end and the tail end of the wire are fixed through the three limiting lantern rings, the head end and the tail end of the wire can be limited after the wire is wound, then the sealing baffles are inserted into the two corresponding limiting clamping grooves to seal the opening of the storage box, the arranged limiting lantern rings can prevent the two ends of the wire from loosening after the wire is wound, and a good fixing effect can be achieved.

The present invention discloses a T-type Halbach plug-in axial flux motor and an analytical method thereof. The motor structure is a double-stator single rotor, and a plug-in T-type Halbach magnetic pole array is provided between the rotor and each stator, and the magnetic pole array includes a plurality of magnetic poles. In the method, a subdomain model method is first used to divide the motor into three subdomains, and the magnetization intensity components of different subdomains are respectively given to establish a double Fourier decomposition expression of the total magnetization intensity. Secondly, according to the Poisson equation and the Laplace equation in a three-dimensional coordinate system, the separation of variables method is used to calculate the general solution expression of the scalar magnetic potential of each subdomain. Then, according to the interface connection condition of the Ampere circuit law and the flux continuity principle, the unknown coefficients in the scalar magnetic potential are solved, and based on the relationship between the magnetic field intensity and the magnetic flux density and the scalar magnetic potential, the general expressions of the magnetic field intensity and the magnetic flux density are calculated. Then, the Carter coefficient is introduced to correct the magnetic flux density to obtain the corrected magnetic flux density expression.

The invention discloses a rotating ball device for teaching, and relates to the technical field of teaching aids. The device comprises a driving assembly, the top of the driving assembly is fixedly connected with a ball assembly, and the surface of the ball assembly is bonded with an index line assembly through an adhesive. Directional rotation of the sphere is achieved through the driving assembly, the spiral relation between the current direction and the magnetic induction line in the ampere rule can be dynamically presented in combination with the spherical surface index line assembly and the internal magnet structure, and when the electrified copper rail generates annular current, an observer can observe the annular current through the center window of the transparent sphere. The law that the direction of a magnetic induction line of a sphere center changes along with current can be visually seen, the sphere rotates in cooperation with the sphere, three-dimensional spiral linkage of current-magnetic induction line is clearly shown, in Lorentz force teaching, when an external magnet is close to the surface of the sphere, spherical surface motion charge identification is in real-time linkage with the rotation direction of the sphere, and the teaching efficiency is improved. And the charge movement direction, the magnetic field direction and the stress direction are dynamically associated in a space vector form.

This invention discloses a method and system for preventing electrode breakage in refining furnaces using quantitative bottom blowing of hot slag with low current, belonging to the field of metallurgical technology. The method includes: pouring circulating hot slag at a temperature not lower than 1450℃ into the ladle to soften the crusted slag layer; quantitatively adjusting the bottom blowing argon flow rate, extracting the argon pore opening diameter using a visual sensor and establishing a calculation model to maintain liquid level stability; switching the electrode raising and lowering to manual mode, setting a low arc-starting current of 10000 amperes, and using a laser reference to control the three-phase electrode flatness error within ±5mm; acquiring electrical and acoustic signals at a period of not less than 100 milliseconds to construct a multi-dimensional model to determine successful arc ignition; after stabilization, increasing the power at a preset slope and switching back to automatic mode. Through hot slag modification, quantitative bottom blowing, low-current arc ignition, and multi-dimensional monitoring, the risk of electrode breakage in the early stages of arc ignition is significantly reduced, improving the safety and stability of the refining process.

The invention discloses a long continuous current discharge simulation device with independently controllable current magnitude and duration, mainly comprising a high-voltage arc starting unit (1) and a continuous discharge unit (2), and also comprising a capacitance control system (3), a charging voltage control system (4), a time-delay circuit breaking system (5) and control software connected to the continuous discharge unit (2). The high-voltage arc starting unit (1) of the device can ignite an arc in an instant (tens of microseconds), and then the continuous discharge unit (2) can maintain the arc for a long time (arc current of 100 to 300 amperes, duration of 100 to 500 milliseconds). The capacitance control system (3) and the charging voltage control system (4) of the device can control the discharge current magnitude; the time-delay circuit breaking system (5) can control the discharge duration. The invention can independently control the current magnitude and duration in simulating long continuous current discharge, and is used to carry out research on lightning ignition of forest combustibles.

This application provides a modeling method and system for predicting the core loss of a high-frequency transformer, comprising: measuring the magnetic properties of the core material at different frequencies based on an experimental platform, and obtaining the magnetization curve and loss density curve of the core material according to Ampere's circuital law; inputting the magnetization curve into a constructed geometric model, setting excitation and boundary conditions, establishing a finite element model and performing finite element simulation analysis to obtain the loss density distribution and magnetic flux density distribution within the high-frequency transformer core; and constructing a loss model by introducing a gradient coefficient and the average value of the loss density, the magnitude of the magnetic field strength gradient, and the average value of the magnitude of the magnetic field strength gradient obtained from the finite element model, to predict the core loss. This application provides important basis for material selection, geometric structure optimization, and thermal design of high-frequency transformers, helping to shorten the R&D cycle, reduce trial production costs, and improve the overall performance of high-frequency transformers.

The present invention discloses a method and a storage medium for measuring the phase current of a three-core cable based on a tweezer-shaped Hall array. The method includes: setting six measurement points on the surface and periphery of the three-core cable to establish a theoretical magnetic field sensing model of the three-core cable; according to the theoretical magnetic field sensing model of the three-core cable, using Ampere's circuital law to deduce the transfer function between the phase current of the three-core cable and the magnetic induction intensities at the six measurement points, and obtaining a non-linear overdetermined system of equations; acquiring the magnetic induction intensity measurement data at the six measurement points, and constructing an objective function based on the magnetic induction intensity measurement data and the non-linear overdetermined system of equations; using a differential evolution algorithm to perform optimization calculation on the objective function to obtain the phase current values of each phase of the three-core cable. The present invention can achieve accurate measurement of the phase current of the three-core cable through the tweezer-shaped Hall array and the differential evolution algorithm.

The utility model discloses an anti-drop AMP wire clamp, which relates to the technical field of AMP wire clamps and comprises a wire clamp shell, an insertion extrusion assembly is arranged in the middle of the inner side of the wire clamp shell, electric power circuits are arranged on the left side and the right side in the wire clamp shell, and the electric power circuits can pass through the wire clamp shell left and right. According to the utility model, the extrusion degree can be accurately controlled by rotating the control disc, wires of different specifications can be adapted, the applicability of the device is improved, the contact area with the wire clamp shell is enlarged by the threaded insertion column, the friction force is increased, and the return is prevented, so that the connection stability of the wire clamp is improved, and the continuous and stable power supply of an electric power circuit is ensured; extra supporting force can be provided through two springs when the thread insertion column is screwed in through the supporting assembly, so that the thread insertion column is tightly attached to the thread groove, looseness caused by external factors such as vibration is effectively resisted, and the stability of the overall structure of the wire clamp is enhanced.

The invention provides a 3D inductor design management method based on the Ampere's law, and relates to the technical field of data processing, and the method comprises the steps: building a magnetic field calculation model, mapping current data and geometric data to the magnetic field calculation model, forming a matrix structure, obtaining an original calculation matrix, carrying out the expansion according to a preset step length, obtaining an expansion matrix, and carrying out the calculation of the expansion matrix; the expansion matrix is normalized according to the calculated magnetic flux equilibrium value, a normalized matrix is obtained, an iterative link is established, an iterative matrix calculation electric field regulation value is obtained, the iterative matrix is decomposed according to the normalized matrix, a decomposition matrix is obtained, sub-matrixes of the decomposition matrix are correspondingly associated with geometric data, and a parameter mapping set is obtained; and carrying out constraint processing on the parameter mapping set, judging whether a convergence result meets a preset design condition or not, obtaining inductor design management data, and carrying out resource allocation and cooperative control on a design process. According to the method, resource and collaborative management of the 3D inductor design process is realized through matrix modeling.

The invention discloses a permanent magnet wind driven generator inductance parameter identification method based on a JA model and data fusion, and the method comprises the following steps: decomposing the magnetization intensity of a ferromagnetic material into a reversible component and an irreversible component, deducing the nonlinear relation between inductance and current through combining the Ampere loop law, introducing a cross saturation coefficient to correct the inter-axis coupling effect, and identifying the inductance parameter of the permanent magnet wind driven generator. Establishing an inductance basic model in a magnetic saturation state; integrating the influences of current, temperature and frequency to form a composite inductance model; establishing a state equation based on the voltage equation and the flux linkage equation; dynamic prediction and updating of states and parameters are realized through extended Kalman filtering, parameter correction is driven by using flux linkage errors in combination with a model reference adaptive system, and finally, weights are adjusted based on disturbance errors of rotational inertia and friction coefficients, so that fusion identification is realized. According to the invention, through physical mechanism modeling and multi-field coupling correction, high-precision tracking of inductance parameters under a wide working condition is realized, and the identification precision and generalization ability of a magnetic saturation region are significantly improved.

The present application provides a kind of available ampere-hour management method and system of group vehicle.First, a first available ampere-hour and a second available ampere-hour corresponding to a first electric vehicle and a second electric vehicle in a group are provided in a remote server.During a certain billing period, the first used ampere-hour of the corresponding first electric vehicle and the second used ampere-hour of the corresponding second electric vehicle are continuously received by a network.Then, it is judged whether the first used ampere-hour exceeds the first available ampere-hour, and whether the second used ampere-hour exceeds the second available ampere-hour.When the first used ampere-hour exceeds the first available ampere-hour and the second used ampere-hour does not exceed the second available ampere-hour, the second available ampere-hour is deducted by the part of the first used ampere-hour exceeding the first available ampere-hour.

The application discloses a permanent magnet wind generator inductance parameter identification method based on JA model and data fusion, comprising the following steps: decomposing the magnetization intensity of ferromagnetic material into reversible component and irreversible component, deducing the nonlinear relationship between inductance and current in combination with Ampere loop law, introducing cross saturation coefficient to correct the inter-axis coupling effect, and establishing an inductance basic model under magnetic saturation state; integrating the influences of current, temperature and frequency to form a composite inductance model; establishing a state equation based on a voltage equation and a flux linkage equation; realizing dynamic prediction and update of state and parameters through extended Kalman filtering, combining a model reference adaptive system to drive parameter correction by using flux linkage error, and finally adjusting weights based on disturbance error of rotational inertia and friction coefficient to realize fusion identification. Through physical mechanism modeling and multi-field coupling correction, the application realizes high-precision tracking of inductance parameters under wide working conditions, and significantly improves the identification precision and generalization ability in the magnetic saturation region.

This utility model relates to the field of rotary joint technology, specifically to a high-sealing rotary joint, comprising: a fixed shell, a rotating shaft tube rotatably connected to the inner wall of the fixed shell, an airtight groove formed on the inner wall of the fixed shell, and a sealing gasket fixedly connected to the outer wall of the rotating shaft tube. The sealing gasket is made of a modified material with added permanent magnet powder. This utility model includes a detection component inside the sealing gasket. When the diameter of the sealing gasket decreases due to wear, the circumference of the strain gauge increases under the elastic action of the sealing gasket. The resistance of the strain gauge changes with stretching. According to the principle of strain effect, when the strain gauge is stretched, its length increases and its cross-sectional area decreases. According to the law of resistance, the resistance of the strain gauge increases, and the current through the strain gauge decreases. After the PLC controller detects the current change, it increases the current flowing into the electromagnetic coil. The magnetic field strength generated by the electromagnetic coil is proportional to the current flowing into the coil, according to Ampere's law.

The utility model discloses an ampoule bottle bottom sealing machine, which relates to the technical field of ampoule bottle heat sealing and comprises a heat sealing machine main body. A rotating disc is arranged at the bottom of the inner surface of the heat sealing machine body, a water tank is installed on the upper surface of the rotating disc, sliding guide rails are arranged on the two sides of the inner surface of the water tank, a containing disc is slidably installed on the outer surfaces of the sliding guide rails, a containing block is arranged on the upper surface of the inner wall of the water tank, and a waterproof motor is installed on the surface of the containing block. Compared with an existing common ampoule bottle heat sealing machine, according to the ampoule bottle bottom sealing machine, through the arrangement of the threaded rod, the threaded rod can drive the containing disc to conduct spiral transmission according to the length of an ampoule bottle, the height of the containing disc is adjusted, the containing disc can be placed in the containing disc, the containing disc can be placed in the containing disc, and the sealing effect is good. Ampere bottles with different heights can be used, the placing stability of the ampere bottles is ensured, and the ampere bottles can be normally sealed by using a heat sealing machine.

This invention relates to a process for preparing highly efficient activated oxygen under low-temperature conditions. The preparation process is carried out in an ozone generator, which includes a shell containing a cooling plate and an electrode plate. A heat exchange channel is formed within the cooling plate. A high-voltage wire and a high-voltage electrode are fixedly mounted on the electrode plate, forming an air gap between them. A slide rail is fixed to the shell, with its axis skewed from the axis of the air gap's transmission direction. The electrode plate slides on the slide rail. A magnetic attraction mechanism is provided on the shell, with the high-voltage wire located within the magnetic field of the mechanism. The axes of the magnetic attraction mechanism, the high-voltage wire, and the slide rail intersect or are skewed. Based on Ampere's law, this invention uses the high-voltage alternating current within the magnetic attraction mechanism and the high-voltage wire to drive the electrode plate to reciprocate within the magnetic field. This causes the high-voltage electrode to reciprocate across the flow cross-section of the air gap, thereby uniformly ionizing the oxygen within the air gap into ozone. This process is simple, efficient, safe, and reliable.

This invention discloses a wide-range current measurement dynamic compensation method and system for excitation system testing, belonging to the technical field of excitation system technology. This invention acquires the temperature of key chips in the signal conditioning module in real time, dynamically calculates zero-point offset and actual gain based on factory calibration parameters, performs digital filtering and noise reduction on the acquired voltage signal, and uses a single-iteration approximation method to complete initial current estimation and nonlinear correction, achieving full-range dynamic error compensation. The system includes a signal conditioning and acquisition module, a temperature acquisition module, a dynamic compensation processor, and an output module. This invention overcomes the shortcomings of traditional testing devices such as manual range switching, static calibration lag, and low accuracy at low currents. It can achieve continuous high-precision measurement over a wide range from milliamperes to tens of amperes, effectively suppressing temperature drift, noise, and nonlinear errors, significantly improving testing efficiency and stability, and is suitable for on-site maintenance and commissioning of hydropower station excitation systems.

The utility model discloses a handheld device for amorphous iron core volt-ampere testing, which comprises a handheld amorphous iron core volt-ampere testing instrument, the outer wall of the handheld amorphous iron core volt-ampere testing instrument is fixedly connected with a wedging plate, the inner wall of the wedging plate is provided with a clamping groove, and the inner wall of the clamping groove is connected with a bearing long block in a clamping manner. According to the handheld equipment for the amorphous iron core volt-ampere test, the handheld amorphous iron core volt-ampere test instrument can be conveniently clamped and fixed when the handheld equipment for the amorphous iron core volt-ampere test is idle through mutual cooperative use of the handheld amorphous iron core volt-ampere test instrument, a wedging plate, a clamping groove, a bearing long block, a limiting plate, a transverse strip plate, a fixing block and a positioning block; according to the handheld amorphous iron core volt-ampere testing instrument, the clamping and fixing effect is more stable, a user clamps a wedging plate on the outer wall of the handheld amorphous iron core volt-ampere testing instrument into a bearing long block through a clamping groove by rotating a limiting plate, the fixing effect is achieved, and the use requirements of people can be met.

This invention relates to the field of power electronic component manufacturing and advanced composite material application technology, specifically a 3D inductor based on Ampere's law and its method; it includes a functional composite skeleton, a 3D precision interlocking winding, and a magnetic core assembly; the system uses a thermally conductive insulating matrix and soft magnetic powder composite molded skeleton, and physically fills the air gap between winding layers through stepped positioning ribs; its core is to utilize the high thermal conductivity of the skeleton to establish a low thermal resistance heat dissipation path, changing the heat conduction mode from coil to air to coil directly to the skeleton; this invention effectively reduces the temperature gradient difference between the core temperature and the surface temperature inside the coil through an embedded heat dissipation array, solving the heat dissipation problem under high power density and significantly improving device performance.

The portable harmless electrolytic treatment device for the photosensitive waste liquid comprises a liquid tank, a power supply, a variable resistor and a combined ampere-voltage meter, the liquid tank is used for containing a waste fixing solution and placing an anode plate and a cathode plate which are partially immersed in the waste fixing solution, the anode plate and the cathode plate can be conducted when being electrified, and the combined ampere-voltage meter is connected with the power supply. Silver in the waste fixing solution is recycled through the negative plate; the variable resistor can adjust the power supply voltage of the power supply and adjust the break-over voltage or current of the anode plate and the cathode plate to be smaller than or equal to a threshold value; the combined ampere-voltmeter can measure and display the numerical values of the current power supply voltage and current, silver ions are recycled through the negative plate, and the cost is saved.

The utility model discloses an oscillation device for detecting the sealing performance of an ampoule bottle, which comprises a base, the four ends above the base are fixedly connected with sliding rods, the sliding rods are connected with a movable frame in a sliding manner, the two ends above the base are fixedly connected with rotating seats, the interiors of the rotating seats are rotatably connected with rotating shafts, and the rotating shafts are connected with the movable frame in a sliding manner. The two ends of the rotating shaft are fixedly connected with rotating discs, and the rotating shaft is fixedly connected with a first gear. According to the ampere bottle supporting device, the motor, the first gear, the second gear, the rotating shaft, the rotating discs and the connecting rod are arranged, so that the movable frame can be driven to slide on the sliding rods, and a worker places an ampere bottle in the two supporting assemblies; according to the ampere bottle vibration device, rapid vibration operation can be achieved through the vibration assembly on the lower portion, meanwhile, the adjustable arc-shaped clamping assembly is arranged in the supporting assembly, the ampere bottle can be stably clamped, it is guaranteed that the ampere bottle cannot fly out in the vibration process, and the vibration effect of the ampere bottle vibration device is greatly improved.