884 results about "Standing wave" patented technology

The invention relates to the technical field of new energy, in particular to a fan blade composite deicing system and method.The fan blade composite deicing system comprises a sensing layer, a decision-making layer, an execution layer and a feedback layer, and the decision-making layer comprises a graph neural network ice type recognition module, a CFD-icing coupling simulation module, a health management module and an energy consumption scheduling algorithm unit; the execution layer comprises a control unit and an execution unit, the control unit comprises a dynamic partition heating controller and a self-adaptive vibration controller, and the execution unit comprises an electric heating system and a vibration deicing system; compared with the prior art that a single deicing mode is usually adopted, and the adaptability to different ice type physical characteristics is poor, the scheme adopts a differential execution strategy, and partition electric heating control is carried out on different chord length areas of the blade based on the ice type recognition result; and high-frequency piezoelectric standing wave vibration is adopted for glaze ice, low-frequency eccentric wheel vibration is adopted for glaze ice, and the beneficial effects that the deicing efficiency is remarkably improved, invalid energy consumption is reduced, and damage to blades is reduced are achieved.

The invention relates to the technical field of structural health monitoring, and particularly discloses a library body health monitoring and early warning system based on heterogeneous multi-source data fusion, and the system obtains library wall strain, environment wind load and three-dimensional deformation data in real time through a multi-source data collection module; high-risk, transitional and stable areas are divided by utilizing a space gridding layered mapping module and combining library body structure features, and risk sensitivity is improved through dynamic weight adjustment; the cross-frequency-domain association feature extraction module constructs a space-time-frequency domain feature matrix, fuses strain spectrum, wind load harmonic and deformation curvature data, and verifies feature credibility in combination with an adversarial generative network; the resonance risk dynamic identification module judges a resonance hot spot based on energy transfer path analysis and a modal cloud picture standing wave node line; and the closed-loop early warning module realizes graded early warning and strategy adaptive adjustment through encryption scanning, digital twin model iteration and dynamic threshold optimization.

The invention relates to the technical field of hemispherical harmonic oscillator assembly, in particular to a welding method and device for an assembled hemispherical harmonic oscillator, and the device comprises a vibration welding platform and a clamping assembly located above the vibration welding platform; the vibration welding platform is used for bearing the sensitive base and providing a thermal field and a vibration field needed by welding, and the clamping assembly is used for clamping the center shaft and sending the center shaft into a center hole of the base. A heating unit and a composite vibration ultrasonic transducer are arranged in the platform, and the platform is configured to apply high-frequency vibration formed by superposition of vertical longitudinal waves and horizontal torsional waves to the base. The high-frequency vibration thixotropic effect is used for reducing the viscosity of the molten solder, the ultrasonic cavitation effect is used for forcibly discharging bubbles at the bottom of the blind hole, and the sound radiation pressure generated by the vibration standing wave field is used for driving the center shaft to achieve friction-free self-centering in the hole. According to the device, the problems of air bolt pseudo soldering and rigid assembly clamping stagnation in the traditional process are solved, and the assembly coaxiality and the connection strength of the harmonic oscillator are remarkably improved.

The invention relates to an aluminum pipe local conduction regulation and control method, system and device based on dynamic electromagnetic field modulation and a medium, and the method comprises the steps: driving an electromagnetic coupling array to scan a target conduction region of an aluminum pipe, so as to construct a three-dimensional dynamic electromagnetic model; analyzing and generating a multi-band excitation parameter combination in a bandwidth constraint range according to the target conductivity gradient parameter; the method comprises the following steps: driving an electromagnetic coupling array by a multi-band excitation parameter combination, collecting an electromagnetic response spectrum of a target conductive area in real time, extracting an eddy current characteristic component set, calculating an obtained phase compensation amount, and dynamically adjusting an excitation phase difference and a power ratio of the electromagnetic coupling array to form a controllable standing wave interference field; and solving the Lyapunov function gradient difference between the node distribution characteristics of the standing wave interference field and the predicted value of the three-dimensional dynamic electromagnetic model so as to iteratively update the multi-band excitation parameter combination. According to the invention, high-precision dynamic regulation and control of the conductivity gradient of the aluminum tube are realized, the energy consumption is effectively reduced, and the stability of a standing wave interference field is enhanced.

The invention is suitable for the technical field of communication, and particularly relates to a method for detecting mismatched harmonic waves of a power amplifier. The method comprises the steps that a first power detection unit is connected with a coupler through a control unit, the standing-wave ratio of a to-be-detected power amplifier chip is adjusted to be 1: 1 through a tuner, and the power of an input signal of a vector signal generator is adjusted till the target power of the to-be-detected power amplifier chip is reached; the second power detection unit is connected with the coupler through the control unit, the output standing-wave ratio of the to-be-detected power amplifier chip is adjusted to a preset specific value through the tuner, and when the tuner modulates phases at intervals of preset degrees, the harmonic power of the to-be-detected power amplifier chip in each phase is recorded through the second power detection unit. Compared with the prior art, the method can accurately test and evaluate the harmonic wave of the to-be-tested power amplifier chip under the mismatched standing wave condition, thereby evaluating the harmonic wave index of the to-be-tested power amplifier chip.

The invention provides a TF-SAW resonator, a preparation method thereof and a filter, and relates to the technical field of semiconductors. The interdigital electrode comprises piston structures, sub-bus bars, metal bumps and recesses, the piston structures are positioned at two ends of the acoustic part, it can be understood that the piston structures are arranged at the tail end areas of the acoustic part on the electrode finger bars, and larger sound velocity difference is realized by changing the sound velocity of the tail end areas; therefore, the transverse mode is reflected in different directions to avoid energy dissipation caused by resonance; according to the TF-SAW resonator, the sub bus bars, the metal bumps and the recesses are arranged on a propagation path of a transverse mode, clutter interference is eliminated by causing sound velocity difference, so that clutter mode interference is inhibited to the greatest extent, the Q value is improved, the insertion loss flatness in a passband is improved, the performance of standing waves in the passband is improved, the insertion loss is improved and the like, and the performance of the TF-SAW resonator is further improved.

The invention relates to the technical field of heat dissipation, in particular to a standing wave heat dissipation device and system, and the device comprises an active film and a passive film which are oppositely arranged. A standing wave cavity is arranged between the active film and the passive film. The cavity wall of the standing wave cavity is provided with an air flow hole channel. The active film and the passive film can vibrate in opposite directions at the same frequency, form standing waves in the standing wave cavity, continuously extrude gas in the cavity and present a surge state, so that the air in the standing wave cavity is continuously compressed and extruded from inside to outside to form an inside-outside pressure difference, and the gas in the standing wave cavity is repeatedly extruded to pass through the gas flow hole channel; and the air flow is jetted to the outside of the standing wave cavity at a high speed in a surge state to form a continuous constant high-speed air flow. When the standing wave heat dissipation device provided by the invention is used for heat dissipation, the active film and the passive film are subjected to reverse same-frequency vibration to form standing wave extrusion airflow, and compared with single vibration film vibration extrusion airflow, the airflow is faster, the efficiency is higher, and the heat dissipation effect is better.

The invention provides a double-constraint radial transduction ultrasonic motor, which comprises an annular rotor and a plurality of stators distributed in the annular rotor in an annular array, and is characterized in that each stator comprises a metal elastomer, a left fixing hole, a right fixing hole, a left piezoelectric ceramic, a right piezoelectric ceramic and an elastic blade group for forming pre-pressure on the annular rotor, the working vibration mode of the stator is first-order standing wave type bending vibration, the left fixing hole and the right fixing hole are formed in the metal elastic body and are formed in the two wave node positions of the first-order standing wave type bending vibration respectively, namely, the amplitude is zero during vibration, and the elastic blade set comprises a left-end elastic blade, a middle elastic blade and a right-end elastic blade. The vibration asymmetry of the metal elastomer can be effectively improved, the structural rigidity of the motor can be improved, the output torque of the motor can be improved, the energy transmission efficiency and the driving capacity can be improved, and the overall performance of the motor can be remarkably improved.

By producing the proper wave interference using superimposed angularly separate waves that overlap with the proper time-phase relationship (called “Time-Correlated Standing-wave Interference”), wave energy is amplified (by “Coherent Intensity Amplification”) and teleported to precise locations. For instance, in one application, energy is teleported to one or more areas within a living body for such therapeutic applications as destroying cancer cells or plaques within arteries. A system implementing this technique creates amplified constructive interference at one or more selected disease locations, while producing destructive interference at surrounding locations. In this application example, the technique allows energy to be “teleported” to tumor cells, plaques, or other diseased cells, for instance, to destroy them, while surrounding healthy cells receive virtually no energy, obviating collateral damage from the treatment. The same method can be used to diagnose disease by detecting energy teleported to different locations.

The embodiment of the invention relates to the technical field of electronic equipment, and provides an anti-interference structure, a shell assembly and electronic equipment, the anti-interference structure comprises an antenna, a camera module and a conductive part, and the conductive part is located in a space between the antenna and the camera module. Electromagnetic waves radiated by the antenna can excite a first standing wave propagating along a first direction on the conductive part, the first standing wave comprises a first electric field, the first electric field can enable the conductive part to generate a first current conducted along the first direction towards one side of the first standing wave, and the anti-interference structure comprises a first conduction loss part; the first conduction loss part is located on the side, facing the first standing wave, of the conductive part, and the first conduction loss part is made of a current loss material; or the material of the part, facing one side of the first standing wave, of the conductive part is a current loss material. According to the anti-interference structure, the shell assembly and the electronic equipment provided by the embodiment of the invention, the problem of interference of the first standing wave on the camera module is effectively improved.

The utility model relates to the technical field of cell culture, and discloses a chamber structure adaptive to Faraday wave assembly, which comprises a pore plate, N mounting grooves are formed in the top surface of the pore plate, and N is greater than or equal to 1; the N container bodies are arranged on the pore plate in a rectangular array mode or a central symmetry mode and correspondingly arranged in the N mounting grooves, a plurality of culture grooves used for cell assembly are sequentially formed in the container bodies in the longitudinal direction from the top face to the bottom face, and the widths of the culture grooves are gradually decreased. According to the device, internal cells or cell microspheres can be gathered into a sound potential well of a standing wave sound field under the action of acoustic pressure, gravity and buoyancy under the action of the sound field and are tightly arranged according to an expected pattern, and a culture solution is longitudinally stacked in a plurality of culture tanks of which the widths are gradually reduced; longitudinal shape limitation on the tissue structure is realized, and complex three-dimensional longitudinal arrangement is constructed through mutual combination of the two. Therefore, the requirement of constructing any multi-scale and complex cell structure is met. And forming a multi-layer structure.

The invention discloses an unmanned intelligent production line and method for an automobile fan, and the method comprises the steps: carrying out the low-speed rotation starting processing of a rotating blade entering a constant-pressure flow channel, obtaining the temperature rise time sequence data of a shearing heat layer in axial distribution through segmented pressurization and three-stage rotation speed increment, and building a reference temperature rise curve; carrying out differential processing on the wall surface temperature rise data in the blade speed increasing process, extracting a temperature rise curvature over-limit region and generating abnormal annulus coordinate data; determining a submillimeter wave oblique projection direction according to the abnormal coordinates, and performing refraction phase analysis processing on the echo signal to obtain a warping fingerprint parameter set including a refraction peak value, echo trailing, a slope change rate and a phase oscillation period; and activating acoustic sampling of a corresponding area, obtaining gas-acoustic resonance standing wave data, and performing cross validation with the warping fingerprint parameters to obtain a quantitative detection judgment result of the geometric defect of the blade. According to the scheme, high-precision online detection of the fan blade microdefects can be realized in an all-black factory environment.

A method for iteratively compensating for detection, drive, and phase errors in a dual-channel measurement and control system for a hemispherical resonant gyroscope belongs to the field of inertial technology. The present invention solves the problem that detection channel errors, drive channel errors, and signal phase delay errors can cause undesirable drift in the standing wave angular rate output by the gyroscope. The present invention effectively suppresses individual errors by performing iterative compensation through a compensation matrix, effectively reduces coupling interference between errors through the design of a compensation scheme, and ultimately achieves optimal compensation for the three errors. By iteratively compensating for detection, drive, and phase errors, the signal detection accuracy and excitation application accuracy of the rate-integrating hemispherical resonant gyroscope dual-channel measurement and control system are improved, effectively solving the problem of undesirable drift in the standing wave angular rate caused by gain, deflection error, and phase delay error generated in the detection channel and drive channel of the measurement and control system. The method of the present invention can be applied to error compensation in a dual-channel measurement and control system for a hemispherical resonant gyroscope.

The invention provides a TF-SAW resonator, a preparation method thereof and a filter, and relates to the technical field of semiconductors. The interdigital electrode comprises piston structures, sub bus bars and recesses, the piston structures are positioned at two ends of the acoustic part, it can be understood that the piston structures are arranged at the tail end areas of the acoustic part on the electrode finger strips, and larger sound velocity difference is realized by changing the sound velocity of the tail end areas; therefore, the transverse mode is reflected in different directions to avoid energy dissipation caused by resonance; on a propagation path of a transverse mode, sub-bus bars and recesses are sequentially arranged, clutter interference is eliminated by causing sound velocity difference, so that clutter mode interference is inhibited to the greatest extent, a Q value is improved, the performance of standing waves in a passband is improved, insertion loss is improved and the like, and the performance of the TF-SAW resonator is further improved.

A device and method for representing the foam porosity state of foamed lightweight soil with self-adjusting beams, and relates to the technical field of sound absorption coefficients measurement; the device includes a standing wave tube, a plurality of polyvinylidene fluoride piezoelectric films, a sensor, an exciter, a push-pull handle, an adjustable telescopic tube, a foamed lightweight soil detection material, a charge amplifier, a data memory, a data adapter, a signal generator, an adaptive power amplifier board, and a PC computer; the device of the invention has low cost, long service life, high measurement accuracy, relatively simple production process, and can be applied to different scenarios.

The invention discloses a valve body laser cutting device and method. The method comprises the steps that low-duty-ratio pulse scanning is conducted on the outer wall of a valve body to generate a guide groove with a surface tension gradient and corrugated textures; spraying inner and outer double-layer pulse airflow according to the characteristics of the guide groove, and respectively forming a periodic negative pressure cavity and positive pressure barriers on two sides at the bottom of the groove; spiral track continuous laser cutting is executed under the action of double-layer airflow, transverse ultrasonic waves forming a three-to-four resonance relation with inner-layer pulse airflow are applied, standing wave diversion is established on the surface of a molten pool, and a kerf penetrating through the wall thickness is obtained; when the kerfs are cut through, the airflow is synchronously switched into negative pressure suction, and ultrasonic waves are changed into traveling waves so as to remove residual molten drops; and low-power rapid scanning is conducted on the inner wall of the kerf through waste heat of the valve body, pulsating inert airflow is injected at the same time, and the residual film is alternately stripped through laminar flow and micro-turbulent flow. According to the scheme, under the condition that extra cooling or chemical treatment is not added, slag rewinding can be restrained.

The invention discloses a digital acoustic fluidic chip, a preparation method and a multi-dimensional sample processing method, the digital acoustic fluidic chip comprises an upper polar plate and a lower polar plate, and the upper polar plate comprises a glass layer, a coating layer and an upper hydrophobic layer which are arranged in sequence; the lower polar plate comprises a lower hydrophobic layer, a dielectric layer, an electrode layer and a substrate which are arranged in sequence; the electrode layer comprises an EWOD pin electrode, a driving electrode, a sound wave pin electrode and an interdigital transducer; the interdigital transducer comprises a sound field and electric field multiplexing module, a sound standing wave field and thermal field module, a focusing sound field and thermal field module and a sound vortex enrichment module; each driving electrode is connected with one EWOD pin electrode, the two sides of the sound field and electric field multiplexing module, the two sides of the sound standing wave field and thermal field module, the two sides of the focusing sound field and thermal field module and the two sides of the sound vortex enrichment module are all connected with the two sound wave pin electrodes, and one side of the sound field and electric field multiplexing module is further connected with one EWOD pin electrode. The method has the advantages of multi-dimensional sample treatment and high-flexibility treatment.

The invention introduces a Doppler radio direction finding system, which relates to the technical field of radio navigation and comprises an antenna array unit, a radio frequency switch matrix, a logic controller, a single-channel receiver and a signal processing unit. The logic controller drives the radio frequency switch matrix to alternately execute clockwise and anticlockwise antenna scanning actions in a single measurement period, and the signal processing unit respectively extracts phase slopes corresponding to forward and reverse scanning, generates an environment error component according to the sum of the two phase slopes and identifies a specific antenna oscillator at a standing wave node. The logic controller responds to the feedback instruction and physically skips the conduction operation on the specific antenna oscillator in the subsequent time sequence, the physical symmetry of positive and negative scanning and an environment feedback mechanism are utilized, environment standing wave interference is actively avoided on the premise that radio frequency channels are not increased, and qualitative change improvement of anti-multipath direction finding precision under a single-channel system is achieved.

The invention discloses an intelligent regulation and control method and system for the environmental comfort degree of a central air conditioner terminal, and relates to the technical field of air conditioner regulation and control. The intelligent regulation and control method comprises the following steps that a pressure fluctuation track generated by aerodynamic disturbance is collected in the operation process of a draught fan, and the pressure fluctuation track is converted into energy spectrum distribution in a time sequence; establishing dynamic energy representation of the fan frequency; based on dynamic energy representation of fan frequency, a sound vibration field is projected in a spatial range, excitation response of inherent frequency is synchronously recorded through a room structure sensing array, and instantaneous energy coupling fingerprints of a room structure are formed. Through dynamic energy characterization and structural response coupling analysis, real-time identification and quantitative control of the standing wave noise risk are realized, a phase drift mechanism is introduced at a risk critical point, a fan disturbance phase is actively adjusted, standing wave superposition is effectively blocked, and acoustic safety and operation stability of a tail end environment are improved.

The invention relates to the technical field of electromagnetic fields and microwaves, and discloses a broadband high-integration-level dual-circularly polarized antenna which comprises an ultra-wideband self-compensation structure plane radiation surface, an ultra-wideband special-shaped reflection cavity, an ultra-wideband impedance transformer and an ultra-wideband integrated dual-polarized feed network. Wherein the ultra-wide-band self-compensation structure plane radiation surface is arranged at the forward position of the ultra-wide-band special-shaped reflection cavity, and radiation of ultra-wide-band dual circularly polarized waves is executed; the ultra-wide-band special-shaped reflection cavity executes matching and forward reflection of ultra-wide-band backward electromagnetic waves; the ultra-wideband impedance transformer executes radio frequency connection and impedance conversion between the ultra-wideband self-compensation structure plane radiation surface and the ultra-wideband integrated dual-polarization feed network; the ultra-wideband integrated dual-polarization feed network performs conversion from an unbalanced signal to a balanced signal and formation of a dual-circularly polarized signal. Unification of directional diagrams, polarization, axial ratio and standing wave bandwidth of more than 15: 1 frequency multiplication can be realized, and the ultra-wideband dual-circular polarization antenna has the advantages of ultra-wideband, miniaturization, constant wave beam and dual-circular polarization.

The invention discloses a college dormitory noise multi-dimensional evaluation method based on psychoacoustic and sound field simulation, and belongs to the field of building environment and noise control. The objective of the invention is to solve the problem that an existing dormitory noise evaluation method is single in index and neglects subjective perception and spatial distribution heterogeneity. The method comprises the following steps: acquiring physical data and original audio of dormitory noise through multi-point synchronous acquisition; calculating loudness, sharpness, roughness, fluctuation intensity and comprehensive psychoacoustic annoyance (PA) by using a psychoacoustic model, and scientifically quantifying subjective interference of noise; meanwhile, sound field simulation is carried out based on the accurately established three-dimensional dormitory model, a sound pressure level distribution cloud picture is generated, and a standing wave phenomenon and a sound energy accumulation area are visually revealed; and finally, generating a targeted noise reduction optimization strategy by integrating subjective and objective and spatial analysis results. According to the method, full-chain diagnosis of physical characteristics-subjective perception-spatial distribution of dormitory noise is realized, and a scientific basis is provided for accurate and efficient noise treatment.

The utility model discloses a multi-junction VCSEL device, a VCSEL chip, a laser radar and a light source thereof. The multi-junction VCSEL device comprises: a substrate; the bottom reflecting mirror structure and the top reflecting mirror structure are sequentially arranged on the substrate; the resonant cavity structure comprises at least two active areas and at least one photoelectric limiting layer, the photoelectric limiting layer is arranged on one side, far away from the substrate, of the active areas, the photoelectric limiting layer is located at the wave trough of the standing wave, and the photoelectric limiting layer is used for limiting a light emitting area of the multi-junction VCSEL device; the at least one optical regulation and control layer is arranged adjacent to the photoelectric limiting layer, the optical regulation and control layer is configured to divide a light field in the resonant cavity structure into at least two sections, and the intensity of each section of the light field is different; and at least two multi-quantum well structures are arranged between the bottom reflecting mirror structure and the nearest optical regulation and control layer. According to the invention, the limiting factor of the photoelectric limiting layer can be greatly reduced, and meanwhile, the limiting factor of the active layer cannot be reduced too much.

The utility model discloses an oblique radiation ultrasonic beriberi symptom treatment device which comprises a container containing cavitation liquid, at least one group of ultrasonic transducers are installed outside the container in an oblique upward sound wave irradiation mode, and feet placed in the container are cleaned and nursed by utilizing the cavitation effect of ultrasonic waves in water. According to the beriberi symptom treatment device with the oblique radiation ultrasonic waves, the ultrasonic transducer assemblies are installed in an oblique upward sound wave irradiation mode, the sound wave superposition principle and the change of the sound propagation direction are utilized, a standing wave non-uniform sound field is avoided, the cavitation effect of the sound field is further enhanced in different areas, and therefore cleaning, sterilization and massage strengthening on the feet are achieved.

The invention belongs to the field of ferrous metallurgy, and particularly relates to a method for improving the quality of a continuous casting billet through ultrasonic waves. According to the method, a multi-directional focused ultrasonic field and solidification front edge dynamic regulation and control combined mode is adopted, and electromagnetic stirring phase difference control and cooperative control of a secondary cooling section (fan-shaped section) auxiliary ultrasonic vibrator are combined at the same time. Wherein the composite action mode of the longitudinal standing wave field and the transverse traveling wave field of the multidirectional focused ultrasonic wave field and the solidification front edge dynamic regulation and control mode act on the casting blank, so that the equiaxed crystal rate can be remarkably increased, and the combination of ultrasonic waves and electromagnetic stirring is beneficial to reducing the segregation degree of the casting blank; and the addition of nano aluminum oxide and magnesium oxide mixed particles in the casting powder is beneficial to improving sound wave conduction so as to reduce subcutaneous bubbles. The isometric crystal rate of the finally obtained continuous casting billet is increased to 30%-55%; the center segregation index of the finally obtained continuous casting billet is reduced to 1.05 or below; and the number of subcutaneous bubbles per square meter is less than 0.5.

The invention provides a film structure for a narrow-band filter, and belongs to the technical field of optical elements. The invention provides a membrane structure for a narrow-band filter. The membrane structure comprises repeated unit layers, each unit layer comprises a strong absorption layer and a space layer which are stacked in sequence; the strong absorption layer is a Ni layer, and the thickness of the strong absorption layer is 1.3 nm; the space layer is a Si layer, and the thickness of the space layer is 5.4 nm; the number of periodic layers of the repeated unit layers is 60. Based on the standing wave principle, the standing wave nodes are designed at the strong absorption layer Ni layer, the filter obtained by the film structure has high working wavelength transmissivity, narrow working bandwidth and high transmission intensity for extreme ultraviolet light, the signal-to-noise ratio of detection or detection equipment is greatly improved, and the close-range working effect can be ensured.

The invention relates to the technical field of wireless communication, and particularly discloses an ultra-wideband high-power dual-polarized horn antenna, which comprises a horn body with a ridge inside, a feed cavity arranged at the flange end of the horn body, and an N-type connector mounted on the feed cavity and connected with the ridge, the flange end of the horn body is of a quadrilateral structure; the radiation end of the horn body is of an octagonal structure, and a quadrangular structure is gradually transited into the octagonal structure in the radial direction of the octagonal structure. The antenna has the advantages of being wide in working frequency band, large in tolerance power (larger than 500 W), low in standing wave, capable of linearly increasing the gain along with the frequency and the like.

A massage device comprising one or more generators of mechanical vibrations with a rotary-vibration or eccentric mechanism or a piezoelectric element, a central control unit, several waveguides for transmitting the vibration action to the body surface, and one or more microcontrollers controlling the vibration parameters for each of the waveguides, characterized in that the waveguides have a fractal 3D structure.

The invention provides a hemispherical resonator gyro signal demodulation method under a high dynamic condition, which aims at the hemispherical resonator gyro signal detection problem under the high dynamic condition, establishes a vibration signal model in which a standing wave azimuth angle changes along with time, and adopts a least square method to identify and separate gyro vibration signals and corresponding errors. And a demodulation error introduced by the change rate of the standing wave azimuth angle under the high dynamic condition is compensated, so that the aim of improving the resolving and full-angle control precision of the gyroscope vibration signal under the high dynamic condition is fulfilled. Compared with the prior art, the technical scheme provided by the invention can solve the technical problem of overlarge signal demodulation error of the hemispherical resonator gyroscope under a high dynamic condition in the prior art.

The invention discloses a self-detection method, a radio frequency system, a radio frequency device and a storage medium, and belongs to the technical field of radio frequency. In the process that the radio frequency link outputs the radio frequency signal, the test channel is controlled to be conducted, and the directional coupler is controlled to be disconnected from the power detector, so that radio frequency power calibration is carried out through the programmable gain amplifier, the power detector and the digital logic control circuit; or, the test channel is controlled to be disconnected, and the directional coupler and the power detector are controlled to be connected, so that standing wave alarm processing is carried out. By controlling the connection and disconnection of the test channel and the directional coupler with the power detector, the purposes of power calibration in a power-on or transmitting power gap, real-time echo monitoring and standing wave alarm can be achieved.

The invention, which belongs to the microwave communication field, discloses a multi-physics-field coupling high-Q-value magnetoacoustic resonator comprising a YIG film, a GGG film substrate, a grounding electrode and a microstrip line. The YIG film generates ferromagnetic resonance under the action of an external magnetic field, the magnetoelastic effect of a YIG material is coupled with a standing wave thickness acoustic mode in a YIG-GGG heterostructure, and the mode combines the broadband adjustable characteristic of a magnetic resonance mode and the high-quality factor (Q value) characteristic of an acoustic resonance mode, so that the magnetoacoustic resonator simultaneously meets the broadband adjustable characteristic and the high-Q value characteristic; in the process, the YIG film plays a role of a transducer, the mode of the heterogeneous film and the microstrip line is adopted, an air gap of a magnetic circuit can be reduced, the size of a bias magnetic circuit is greatly reduced, and therefore the resonator is miniaturized.