39 results about "Linear coupling" patented technology

An apparatus comprises: a first layer (451); a second layer (452) over the first layer (451), wherein the second layer (452) comprises a magnetic material; a third layer (453) over the second layer (452); a first winding with a first shape in the first layer (451), wherein the first winding is electrically conductive; and a second winding with a second shape in the third layer (453), wherein the second winding is electrically conductive, and wherein the second shape is an inverse of the first shape.

The present application relates to a kind of pre-tensioned steel wire rope lateral impact response calculation method considering geometric and friction nonlinear coupling.First, the linear tensile constitutive model of pre-tensioned steel wire rope is constructed, Von Kármán large deflection theory is introduced, and the geometric hardening relationship of the nonlinear growth of axial tension with lateral deflection is established;Subsequently, a bilinear bending stiffness model is constructed to calculate the critical anti-sliding torque that evolves dynamically with tension;Based on the principle of energy conservation and Rayleigh-Ritz method, the system total potential energy functional of axial tensile potential energy and nonlinear bending potential energy is constructed, and the maximum impact deflection and tension response of the steel wire rope are obtained by solving the energy residual equation, the maximum response is substituted back into the constitutive equation, and the maximum nominal stress of the midspan cross section, the maximum axial tension and the extension length of the internal slip zone are calculated.The present application has very high calculation efficiency compared with full-size finite element simulation, and is suitable for the rapid design and safety evaluation of steel wire rope protection system.

Systems and methods for a datacenter cooling system are disclosed. In at least one embodiment, a quick disconnect (QD) adapter can be associated with a mating rotational coupler of a rack-mounted coolant distribution unit (CDU) by a rotational action on a rotational coupler of a first side of a QD adapter and can be associated with a mating QD coupler of at least one cooling loop by a linear action on a linear coupler of a second side a QD adapter.

The invention discloses a rock permeability prediction method, a medium, equipment and a product, and relates to the technical field of permeability prediction.The method comprises the steps that multi-dimensional logging characteristics are obtained; constructing a Pearson's correlation coefficient matrix thermodynamic diagram to quantify the linear coupling strength of the multi-dimensional logging characteristics and the permeability, obtaining the correlation coefficient of the logging characteristics and the permeability of each dimension, screening the logging characteristics from the multi-dimensional logging characteristics according to the correlation coefficient, and constructing a characteristic matrix; building a parallel permeability model and a vertical permeability model based on a table prior data fitting network, training the parallel permeability model by using the feature matrix, splicing the parallel permeability predicted by the trained parallel permeability model as a new feature to the feature matrix, and training the vertical permeability model by using the spliced feature matrix; and predicting the rock permeability by using the trained parallel permeability model and vertical permeability model. The method can solve the problems that an existing method has high requirements for data quantity and quality and is weak in model generalization ability.

The application discloses a method for realizing optical wave and terahertz near-zero refractive index based on a nonlinear mixed waveguide, and steps are as follows: thin film lithium niobate is selected as a nonlinear material to process a mixed waveguide; a one-dimensional corrugated waveguide is used on the mixed waveguide to show a Dirac point-like dispersion characteristic at a Gamma point; an average nonlinear coupling coefficient of the mixed waveguide is calculated, and the quality factor of the zero-refractive-index waveguide is optimized by adjusting the thickness and period of the thin film lithium niobate; hollow rectangular metal waveguides are arranged around the thin film lithium niobate waveguide, and are used for guiding the propagation of terahertz waves and enhancing the nonlinear interaction in the difference frequency process; and the near-zero refractive index of various terahertz frequencies is realized by changing the width of the hollow rectangular metal waveguide. By jointly designing the nonlinear mixed waveguide of the terahertz and optical wave near-zero refractive index, the problems of phase mismatch and weak nonlinear interaction of the conversion of the optical wave to the terahertz wave are solved, so that the efficient conversion of the optical wave to the terahertz wave across the wave band is realized through on-chip optical difference frequency.

The invention discloses a staggered inductive coupling feeding ultrahigh-frequency tag antenna attached to a metal surface, which belongs to the technical field of tag antennas and comprises a dielectric substrate, a conductive layer printed on the dielectric substrate and a tag IC (integrated circuit) chip arranged on the conductive layer. The conductive layer comprises a linear feed unit and a linear coupling unit; the linear feed unit comprises two mutually symmetrical horizontal feed strip lines and first vertical open-circuit stubs respectively arranged on the outer sides of the two horizontal feed strip lines; the tag IC chip is arranged at the central position of the inner side of the two horizontal feed strip lines; the linear coupling unit comprises two mutually symmetrical horizontal coupling strip lines, second vertical open-circuit stubs arranged on the inner sides of the two horizontal coupling strip lines respectively, two coupling broadband lines connected with the two horizontal coupling strip lines, and two rectangular defects etched in the coupling broadband lines respectively. The problems that the scheme is complex and the cost is high when an ultrahigh-frequency tag antenna overcomes a metal structure are solved.

This invention relates to the field of non-electric variable regulation technology and discloses a method for regulating reaction parameters in the production of semiconductor-grade electronic hydrofluoric acid. The method includes: acquiring temperature and mass flow rate data of the reaction system; extracting the transient phase difference between the temperature and flow rate differential signals using phase difference tracking logic to characterize the nonlinear physical resistance fluctuations of the fluid; dynamically scheduling the nonlinear coupling coefficient based on the temperature deviation to identify the system error state; correcting the reaction enthalpy change coefficient using the transient phase difference, determining the feedforward compensation control quantity and superimposing it with the feedback control quantity, and outputting control commands for the fluid regulation actuator. This invention achieves compensation for fluid resistance through high-frequency signal phase decoupling, and, combined with an error state-based adaptive switching mechanism, improves the anti-disturbance stability and steady-state convergence accuracy of the purification process.

The invention discloses a polling attitude control method and device for a double-layer coaxial eight-rotor unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicle polling. The device consists of a double-layer coaxial eight-rotor aircraft body structure, a power system, a flight controller and a redundant attitude sensor module, and is constructed by adopting a symmetrically distributed double-layer coaxial eight-rotor architecture. The characteristics of high stability and strong power output of the traditional eight rotors are reserved, and the characteristics of maneuverability, flexibility and quick response of a miniaturized unmanned aerial vehicle are achieved. A litsea rotundifolia algorithm improved by a target function, an optimization allocation strategy and a hyper-parameter constraint strategy is introduced into the flight controller, and optimization adjustment is performed on HOD, CFO and MCC hyper-parameters of a model compensation controller, so that the compensation capability of an attitude controller on system nonlinear coupling and external disturbance is enhanced. The redundant attitude sensor module integrates double attitude sensors and outputs attitude data cooperatively and complementarily. The attitude response and control precision of unmanned aerial vehicle inspection in a complex environment is improved.

The invention discloses a radio frequency relay optimization design method fusing big language model priori knowledge and Kriging-IAGA. The method comprises the following steps: firstly, screening out key structure parameters and material parameters which influence insertion loss through HFSS simulation and single factor analysis; then constructing a sample library by using a method of combining single factor analysis with an orthogonal experiment, and establishing a high-precision Kriging agent model; further introducing an improved IAGA to carry out multi-parameter collaborative global optimization, and adopting an HFSS to regularly check and correct the proxy model; lLM is further introduced to serve as a process constraint device, an electromagnetic performance-process implementation dual evaluation system is constructed, semantic scoring is conducted on manufacturability of an optimal solution through the LLM, and a fitness function is corrected. According to the method, the problems of long simulation period, difficulty in processing nonlinear coupling in an orthogonal test and the like in the traditional relay optimization design are solved, the insertion loss of a high frequency band is effectively reduced, and the consistency and radio frequency performance of a product are improved.

The application relates to a bearing radial clearance state monitoring method and device in a gear-shaft-bearing system. The method comprises the following steps: arranging an acceleration sensor at a position close to the bearing of a gear box of a gear-shaft-bearing-box fourteen-degree-of-freedom nonlinear coupling vibration system, continuously collecting vibration time domain signals of the system at different running moments, carrying out detrending and filtering processing on the vibration time domain signals, and obtaining pretreated signals; carrying out discrete Fourier transform on the pretreated signals, obtaining modulation signal bispectrum based on traditional bispectrum expansion; carrying out carrier frequency normalization processing on the modulation signal bispectrum, obtaining nine groups of MSB-SE amplitudes, superimposing the nine groups of MSB-SE amplitudes on (1, 2, 3) x GMF on (1, 2, 3) x BPFO, obtaining MSB-SE comprehensive indexes of each moment for monitoring the bearing radial clearance, drawing a curve of the indexes changing with running time, and determining a bearing radial clearance monitoring result. The accurate and online monitoring of the bearing radial clearance is realized.

The invention relates to the technical field of dam safety monitoring, and discloses a dam displacement detection method based on a sensing system. A two-dimensional rectangular coordinate system is established on an upstream inclined plane, two-channel reflection FBGs are arranged according to row and column intervals, and the sensitive direction is consistent with a bus; according to the reference working condition, dual-channel initial wavelengths are collected, and strain and temperature sensitivity coefficients are calibrated; in the monitoring period, real-time wavelength is obtained, relative drift is calculated, and axial strain and temperature change of each node are obtained based on dual-channel linear coupling decoupling; the axial displacement is converted according to the strain and the effective pasting length; performing normalized weight interpolation on node coordinates and displacement, constructing a two-dimensional displacement field and solving a spatial derivative; identifying abnormity according to a gradient modulus and an uncertainty threshold value; and packaging and uploading node displacement, abnormal coordinates and interpolation parameters according to a period to form a time sequence file.

This invention discloses a multi-axis random load fatigue damage prediction method incorporating a cross-attention mechanism. The method includes a data processing stage: acquiring multi-axis random load signals and preprocessing them; aligning load signals from different axes according to time steps to obtain multi-axis time-series data segments; converting the preprocessed multi-axis time-series data segments into a high-dimensional feature representation that can be processed by the model; inputting the high-dimensional features into a Transformer encoder and introducing a cross-attention mechanism; the Transformer encoder ultimately outputs multi-axis fused time-series features; and inputting the S3 multi-axis fused time-series features into a fully connected layer to obtain fatigue damage. By introducing a cross-attention mechanism to dynamically model the coupling relationship between multi-axis loads, the method can automatically learn the contribution weights of different load components to fatigue damage, achieving high-precision prediction of fatigue damage under multi-axis random load conditions. This avoids information loss and can characterize the temporal nonlinear coupling effect, thereby significantly improving prediction accuracy and generalization ability.

The application relates to a low-profile dual-polarized waveguide slot array antenna unit, belonging to the technical field of dual-polarized antennas, and solves the problems of high profile and large weight of the dual-polarized antennas in the prior art. The low-profile dual-polarized waveguide slot array antenna unit is arranged in sequence from top to bottom as follows: radiation slots, a resonant cavity, cross coupling slots, a first feeding waveguide, a linear coupling slot and a second feeding waveguide; the radiation slots are arranged above the resonant cavity; the radiation slots are shared by four and form a 2*2 array. The antenna unit has the advantages of low profile, wide working bandwidth and high radiation efficiency.

The utility model discloses a linear coupler, which relates to the technical field of couplings and comprises a first shaft sleeve component, a second shaft sleeve component, two connecting blocks, a connecting component and a screw rod, the second shaft sleeve component is arranged in the linear extension direction of the first shaft sleeve component, and the two connecting blocks are respectively clamped at the opposite ends of the first shaft sleeve component and the second shaft sleeve component. The connecting assembly is meshed between the first shaft sleeve assembly and the second shaft sleeve assembly and used for linear deviation compensation of the coupler, and the multiple screws are used for connecting the two connecting blocks with the first shaft sleeve assembly and the second shaft sleeve assembly. Through the arrangement mode that the first shaft sleeve assembly, the second shaft sleeve assembly and the connecting assembly are matched, installation and maintenance of the rotating shaft are facilitated, axial and radial deviation are effectively absorbed, elastic deviation compensation is achieved, vibration is reduced, slippage among the first shaft sleeve assembly, the second shaft sleeve assembly and the connecting assembly can be achieved, and operation is stable; the use stability of the coupler is improved.

The invention relates to a multi-axial fatigue prediction method and medium based on non-linear coupling of normal and shear strain energy, and the method comprises the steps: calculating the normal strain and tangential strain of each group of experimental results at each angle under a loaded condition by using the fatigue experimental results of a to-be-predicted material, finding out the plane where the maximum shear strain amplitude of the maximum normal strain is located, and calculating the maximum shear strain amplitude of the maximum normal strain; taking as a critical surface; calculating each stress-strain component on the critical surface; acquiring material and shear performance parameters of a to-be-predicted material, and predicting by adopting the fatigue prediction model in combination with each stress-strain component; the model building process comprises the following steps: performing nonlinear coupling on normal strain energy and shear strain energy, obtaining a fatigue damage parameter by combining an average normal stress correction coefficient and an average tangential stress sensitivity coefficient, and obtaining a fatigue prediction model by combining the fatigue damage parameter with a fatigue damage equation in a shear form. Compared with the prior art, the method has the advantages of being high in fatigue life prediction precision, suitable for proportional and non-proportional loading, high in safety and the like.

A distributed MPC control method for an arrayed wave energy conversion device comprises the following steps that a centralized motion model and a state space model of a whole WEC array are established, and the linear coupling relation of all subsystems among the state, control input and wave exciting force is determined; establishing a coupling influence model containing adjacent subsystems and a subsystem partition model; each subsystem takes global energy maximization as a common target, and introduces local control input and local displacement constraint conditions to carry out local optimization; an iterative algorithm is adopted to coordinate control input of each subsystem, and iterative solution and information interaction are realized; s4, a plurality of sampling moments are set, the step S4 is repeated at each sampling moment, control input is updated in real time, each subsystem is converged to a feasible and appropriate optimal solution at each sampling moment, and it is ensured that the device adapts to wave change and array interaction.

The invention provides a three-dimensional nonlinear magnetic material equivalent circuit model and a test method, and is applied to the technical field of power electronics. According to the model, a current source module applies bias current and excitation current to a nonlinear coupling packaging module; a plurality of node ports of the nonlinear coupling packaging module are connected with physical coupling nodes of a plurality of nonlinear coupling devices; the mapping sub-module maps the plurality of physical coupling nodes and the plurality of nonlinear coupling devices, constructs an analog nonlinear coupling circuit according to a connection coupling relation between the linear damping module and the plurality of nonlinear coupling devices, and responds to an applied bias current and an excitation current, so that the nonlinear coupling circuit is simulated. The analog nonlinear inductance unit is coupled to generate an analog induced voltage, and the analog induced voltage is applied to the linear damping module and other analog nonlinear devices through a plurality of node ports to reproduce a magnetic domain rotation coupling effect and an anisotropic hysteresis effect; the linear damping module responds to the analog induced voltage and reproduces a damping effect in combination with the analog nonlinear resistor unit.

The invention discloses a bandwidth limited system T-S fuzzy sliding mode control method based on an adaptive WTOD protocol, and belongs to the technical field of industrial control and intelligent manufacturing. The method comprises the following steps: establishing a T-S fuzzy networked system model containing time-varying and time-lag; designing a self-adaptive WTOD transmission protocol integrated with a uniform quantization mechanism; constructing a fuzzy sliding mode controller based on the available system state information; giving out discrimination conditions for ensuring that the indexes of the T-S fuzzy networked system are bounded and the sliding mode surface is reachable in an inequality group form; converting an inequality group discrimination condition containing linear coupling into a minimization problem by adopting cone complementary linearization; and optimizing the final upper bound of the closed-loop system state and the upper bound of the sliding mode surface reaching neighborhood based on a particle swarm algorithm. According to the method, the cooperative improvement of the control performance and the communication efficiency is ensured, and a verifiable and easy-to-implement unified analysis and design framework is provided for the bandwidth-limited networked nonlinear system.

The invention discloses a TDOA / FDOA passive positioning method based on an alternating direction multiplier method. The method comprises the following steps: firstly, carrying out initial estimation on a target position and speed by utilizing a weighted least square method; then, performing first-order Taylor expansion on the nonlinear geometric constraint at the initial point, and reconstructing an original non-convex optimization problem into a constraint weighted least square model with linear coupling constraint; finally, an ADMM framework is introduced, and efficient decoupling solution of position and speed variables is achieved by alternately updating the target position, the speed and the Lagrange multiplier. The system, the device and the medium are used for realizing the TDOA / FDOA passive positioning method based on the alternating direction multiplier method. According to the method, the problem that traditional nonlinear optimization is prone to falling into local optimum is effectively solved, the positioning precision is remarkably improved, meanwhile, the calculation complexity is greatly reduced, and the robustness and the real-time performance of the algorithm under the conditions of low signal-to-noise ratio and complex observation are enhanced.

The invention discloses a multi-dimensional force decoupling method for nonlinear coupling error modeling, and belongs to the field of intelligent sensor signal processing. Aiming at the problems of large inter-dimensional coupling nonlinear error, asymmetry in positive and negative directions, poor repeatability and the like of a multi-dimensional force sensor, a three-step method of'precision screening-segmented variable-order fitting-positive and negative matrix 'is provided. The method comprises the following steps of: firstly, preferably selecting a calibration matrix by taking the minimum linearity, hysteresis and repeatability error mode length as a criterion; a coupling curve is fitted through 1-k-order polynomials in a segmented mode, the maximum decision coefficient is adjusted to determine the optimal order and coefficient, an endpoint method linear coefficient is adopted for a main channel, and a positive and negative correction matrix is constructed; during decoupling, corresponding row elements are dynamically selected according to output voltage symbols to form a decoupling matrix, and coupling errors are deducted in real time. The method can meet the high-precision force control requirements of robots, aerospace and the like, is small in calculation amount, and is easy to realize in an embedded manner.

The application relates to the technical field of pole group installation, and discloses a storage battery pole group plug side plate compacting device which comprises a rack and further comprises a guide groove one arranged on the rack, five guide blocks arranged in the guide groove one in sequence along the length direction of the guide groove one, the guide block close to one end of the guide groove one being fixed on the rack, the other four guide blocks being all slidingly connected in the guide groove one, a telescopic part two being fixed on the side wall of the rack, the telescopic end of the telescopic part two being connected with the guide block close to the other end of the guide groove one, every two adjacent guide blocks being connected through a linear coupling assembly, the linear coupling assembly comprising a connecting rod, a sliding block being fixed on one end of the connecting rod, and the other end of the connecting rod being fixed on one end of one of the two adjacent guide blocks. The five linkage guide blocks are driven by the telescopic part two, a plurality of groups of extrusion plates are synchronously contracted, the compacting of the pole group plug side plates and the pole groups in a plurality of installation grooves is completed at one time, the production rhythm is greatly shortened, and the large-scale manufacturing demand is met.

The invention relates to the technical field of vibration noise control, in particular to a tunable multimode acoustic superstructure based on magneto-rheological nonlinear coupling, which comprises a superstructure main body which comprises a top plate, a bottom plate and a three-stage coaxial resonator, and the three-stage coaxial resonator is connected with the top plate to form a cantilever so as to process vibration noise in different frequency ranges; the magnetorheological rubber module is laid on the cantilever, and the shear modulus of the cantilever is continuously adjusted through the external magnetic field intensity; the magnetic control module comprises a stepping motor and two permanent magnets, the stepping motor and the permanent magnets are arranged on the bottom plate, and the magnetic pole distance between the two permanent magnets is adjusted through the stepping motor so as to adjust external magnetic field intensity distribution. Therefore, the problem that accurate regulation, control and optimization of vibration in different frequency ranges are difficult to realize by a related acoustic superstructure is solved.

The invention relates to the field of polymer synthesis, and discloses a conjugated diene polymer with a multi-arm star-shaped structure as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) in the presence of an inert solvent and a lithium-containing initiator, carrying out polymerization reaction on a conjugated diene monomer and a monovinyl aromatic hydrocarbon monomer to obtain a product system; and (2) carrying out coupling reaction on the product system and an additive containing a mixed coupling agent to obtain the conjugated diene polymer with a multi-arm star-shaped structure, wherein the mixed coupling agent comprises a star-shaped coupling agent and a linear coupling agent. The prepared conjugated diene polymer is high in molecular weight and wide in molecular weight distribution, the number-average molecular weight of the solution polymerized styrene-butadiene rubber prepared by the method is 150,000-24,000 g / mol, the molecular weight is in trimodal distribution, the molecular weight distribution is 1.6-2, and the solution polymerized styrene-butadiene rubber has improved processability and higher vulcanized rubber strength.

This invention discloses a joint control method and system for a multi-degree-of-freedom robot, belonging to the field of industrial robot control technology. The method includes: installing sensor groups on M joints of a target multi-degree-of-freedom robot, and simultaneously setting up vision sensors; collecting joint operation data from the M joints through the sensor groups to obtain a global image of the robot; estimating joint states based on the M joint operation data and the global image; decomposing motion paths and generating fuzzy control solutions for the M joint position and state information by combining the robot's working environment map and task requirements; introducing a reinforcement learning mechanism to optimize the control strategy of the target multi-degree-of-freedom robot based on the control parameters of the M joints, and determining the control commands for the M joints to control the robot's operation. This application solves the technical problems of traditional multi-degree-of-freedom robot joint control relying on a single sensor, which easily leads to error accumulation, weak dynamic adaptability, and difficulty in achieving high-precision control due to nonlinear coupling of joints.

The application discloses a paper aircraft wing length and wing width collaborative regulation hovering time control method, relates to the field of aircraft control technology, and comprises the following steps: establishing a wing nonlinear collaborative model, pre-storing material parameters and defining the coupling relationship between the wing length, the wing width and the SMA temperature; collecting multiple source data such as flight height, SMA temperature, wing stress and attitude angle in real time; calculating air density according to the height and the attitude, and calculating the theoretically optimal wing length and wing width in combination with stress feedback calculation; comparing the theoretically optimal value with the real-time value to generate a control deviation signal of the wing length and the wing width; inversely solving the required SMA driving current through a decoupling matrix and a PID algorithm; driving SMA deformation by applying the current, and updating the nonlinear coupling factor in the model online. The application can dynamically adjust the wing shape to match the current aerodynamic demand according to the airflow change in the flight process by driving the wing length and the wing width to collaboratively deform, combining the wing type optimization algorithm of the nonlinear coupling model and the real-time stress feedback.

Resonator cell based on the principle of a Helmholtz resonator, consisting of 1.1 a resonance cavity and 1.2 an opening for coupling to a surrounding medium (13), characterized in that 1.3 the annular resonance cavity (1) is essentially toroidal and has a centrally arranged cone element (2), 1.4 wherein an axially extending gap (4) is formed between the resonance cavity (1) and the central cone element (2), which causes a non-linear coupling between pressure and suction fields, 1.5 wherein the standing wave (12) generated in the resonance cavity (1) is not reflected in the cavity, but propagates stably into the surrounding medium (13) via the gap coupling, 1.6 wherein periodic pressure changes in the gap area result in a continuous energy transfer into the medium (13), so that a free, self-stabilizing vortex and vibration field with a defined axial end is formed (17), 1.7 which enables directed coupling without an external reflector.

The application discloses a high-voltage connector fault prediction method, relates to the technical field of fault prediction, and solves the technical problems of incomplete fault mechanism coverage caused by the lack of multi-dimensional sensitive features, inaccurate thermoelectric coupling effect capture, unable to compensate signal transmission delay, lack of dynamic compensation mechanism, and low practicability of prediction results; the interference of environmental vibration is eliminated by extracting the resonance frequency offset of the vibration signal through FFT transformation; a temperature change rate correction term is introduced into the temperature resistance coupling coefficient; the linear coupling features output by the bivariate LSTM and the nonlinear coupling features extracted by the KPLS are combined to construct a thermoelectric coupling feature set, and full-stage coverage of the thermoelectric coupling effect is realized. The improved Transformer model quickly adapts to a new scene through small sample transfer learning. Based on the dynamic compensation coefficient output by the fusion features, the signal transmission delay under the conditions of rapid temperature change and electromagnetic interference can be corrected in real time.

The utility model provides a strip line filter. The strip line filter comprises a top-layer PCB, a middle-layer PCB and a bottom-layer PCB, micro-strip lines are laid on the bottom layer PCB and the middle layer PCB. The microstrip line of the bottom PCB comprises a bottom input straight-through line and a bottom output straight-through line which are located at the two ends of the bottom PCB in the length direction respectively and extend from the ends to the middle. The microstrip line of the middle-layer PCB comprises a middle input straight-through line and a middle output straight-through line which are located at the two ends of the middle-layer PCB in the length direction respectively and extend towards the middle from the positions away from the ends by a preset distance, and a pair of L-shaped coupling lines symmetrically arranged between the middle input straight-through line and the middle output straight-through line. The plurality of linear coupling lines are arranged between the L-shaped coupling lines in a staggered and spaced manner; and the L-shaped coupling line and the linear coupling line form a coupling part. According to the strip line filter, the environmental restriction of a microstrip filter is eliminated, the strip line filter has a high rectangular coefficient, and higher suppression degree is realized under the same volume.

This invention relates to the field of solid-state microwave source thermal management technology, specifically a multi-mode cooling control method and system for solid-state microwave sources. The invention acquires multi-dimensional operating parameters of the solid-state microwave source in real time, constructs a nonlinear coupling model of microwave power and junction temperature, and outputs the thermal load state using a power-temperature transfer function matrix. Then, it obtains predictive information for cooling control through unsteady-state heat conduction differential equations, proactively acquiring information such as junction temperature change trends and instantaneous thermal overshoot judgment values. This avoids the delay defects of traditional cooling responses, improves the foresight of thermal management, and ensures stable operation of the solid-state microwave source. Furthermore, based on the predictive information for cooling control, it performs matching analysis to output a cooling strategy library, classifies the thermal load level according to the estimated cooling power demand, and achieves multi-mode adaptive switching between air cooling, liquid cooling, and phase change cooling. Simultaneously, it dynamically adjusts the cooling mode according to the thermal gradient distribution, optimizing cooling resource utilization and reducing energy waste.

A triaxial atom magnetometer full-band decoupling method based on a complex transfer matrix aims to solve the problems in the existing triaxial SERF atom magnetometer decoupling technology, comprehensively considers amplitude and phase coupling information and realizes full-band and high-precision triaxial magnetic field decoupling measurement, and is characterized by comprising the following steps: modeling a triaxial SERF atom magnetometer measurement system into a linear system; a complex transfer matrix representing amplitude and phase linear coupling characteristics among three axes in a full frequency band is obtained through calibration, a measured three-axis response signal is converted by using an inverse matrix of the complex transfer matrix in measurement, and a three-axis magnetic field after full frequency band decoupling is solved. On the premise of considering complete phase information for the first time, three-axis complete decoupling measurement is realized, dependence on magnetic field compensation is remarkably reduced, and a universal solution is provided for high-precision full-band vector magnetic field measurement.