8 results about "Resonance tuning" patented technology

The invention discloses a GPU chip phonon positioning vortex self-repairing cooling control method and system, and relates to the technical field of intelligent chip thermal management, and the method comprises the steps: analyzing a GPU chip design file, constructing a GPU chip digital twin, solving GPU chip deformation field distribution through a thermal-force coupling equation, and generating a dynamic deformation feature template library; applying an alternating magnetic field to induce quantum vortex in a magnetic fluid cooling environment, and performing feature face method dimension reduction calculation on the GPU chip surface image based on the dynamic deformation feature template library to generate a defect feature weight vector; and performing quantum resonance tuning detection according to the defect feature weight vector, and amplifying the phonon signal intensity of the defect area of the GPU chip through a phonon-magnetic field frequency matching equation to generate a submicron precision defect coordinate. According to the method, submicron precision defect coordinates are generated through quantum resonance tuning detection, and high-precision positioning of the local defect area of the GPU chip is achieved.

This application relates to a dual-interface smart card that integrates a highly optimized antenna system and chipcard module to support both contact and contactless operations. The design addresses challenges in electromagnetic coupling, resonance tuning, and compliance with industry standards like EMV, ensuring robust performance across various chip types. The antenna system features a combination of three coils and a capacitive element, enabling efficient energy transfer and communication with external readers while maintaining a compact and durable structure. The application further incorporates precise adjustments to wire parameters, resonant frequency, and quality factor, enhancing coupling efficiency and operational reliability. [Fig. 11]

Methods and devices including implantable micro-sensors used to detect tissue-dissolved inert gas and to detect microbubble formation to avoid Caisson disease are described. The disclosed methods and devices are based on measuring the refractive index changes in hydrophobic liquids after absorbing an inert gas such as nitrogen. The changes in the refractive index are based on implementing one of an interferometry, optical microcavity resonance shift, a photonic crystal resonance, a beam deflection, a resonance tuning or detuning, an amplitude change, or an intensity change method.

This invention discloses a vibration reduction method for constant stiffness railway tracks. This method, while ensuring the absolute constancy of the track stiffness, utilizes the resonance principle to achieve effective vibration reduction through vibration absorbers, completely changing the traditional vibration reduction method that reduces track stiffness through a mass-spring system. In this method, vibration absorbers are pre-embedded in the track bed and foundation. Precise resonance tuning achieves the absorption and dissipation of vibration energy in specific frequency bands. The spring stiffness of the vibration absorber is calculated based on its own mass and the frequency band requiring vibration reduction, according to the formula for a single-degree-of-freedom undamped spring-mass system. A precise track-vibration absorber system model is established using a computer for dynamic simulation calculations to predict the system's vibration reduction performance. Based on the feedback information from the calculation results, the vibration absorber parameters and arrangement scheme are readjusted, and simulation calculations are performed again. Through iterative optimization, the vibration reduction requirements are met.

The invention discloses an FLNG-LNGC combined operation platform passive vibration reduction system based on anti-resonance tuning. The system comprises a main hydraulic conversion unit, a hydrostatic pressure sensing variable stiffness unit, a pressure sensitive type variable inerter unit and a differential type clearance fluid capture damping unit. The main hydraulic conversion unit converts vertical motion of the hull into hydraulic circuit fluid flow. The hydrostatic pressure sensing variable stiffness unit adjusts the loop stiffness through external water pressure. The pressure-sensitive deformation inerter unit compresses a fluid channel through external water pressure to reduce the sectional area, so that the fluid inertia coefficient is remarkably increased along with increase of draught. According to the method, the parameter evolution relation that the fluid inertia coefficient growth rate is larger than the rigidity growth rate is constructed, so that the inherent frequency of the system is automatically reduced along with the increase of the draught, the frequency drift caused by the increase of the loading capacity of the FLNG is passively tracked, the interstitial resonance is effectively inhibited, external energy sources are not needed, and the environmental adaptability is high.

A solid state optical cavity may include a first mirror and a second mirror providing reflective surfaces for light to reflect back and forth within the cavity to create a standing wave at a resonant frequency. A thin film lithium niobate layer may be deposited between the first mirror and the second mirror. The thin film lithium niobate layer may be configured to be electrically tunable to optically select the resonant frequency.

This application relates to a vibration exciter capable of striking motion, comprising a housing assembly, a coil assembly, a mover assembly, and at least one elastic body. The coil assembly includes a frame fixed within the housing assembly and at least one electromagnetic coil fixed to the frame. The mover assembly includes at least one mass block and a magnetic assembly fixedly connected to the mass block. The magnetic assembly is composed of at least two magnets and at least one soft magnet arranged alternately in the direction of motion, with a soft magnet sandwiched between adjacent magnets, and the two magnetic poles of two adjacent magnets facing the same soft magnet having opposite polarities. This application enhances the magnetic circuit driving force through the alternating arrangement of multiple magnets and soft magnets, and achieves large-displacement reciprocating motion by combining it with elastic body resonance tuning. It transforms the high-frequency, small-amplitude vibration of traditional vibration exciters into low-frequency, large-displacement striking motion, achieving a biomimetic simulation of the effect of human hand striking.

The application relates to the technical field of magnetic suspension, and discloses a magnetic bearing wireless power supply resonance tuning and energy efficiency optimization method, which comprises the following steps: acquiring magnetic bearing parameters; dynamically predicting a model to calculate a coupling coefficient at a future time; obtaining a resonance frequency after feedforward tuning; solving an efficiency optimization function to obtain optimal transmission power and working frequency; calculating magnetic bearing current; solving optimal weight coefficients of a system stability function; generating and applying a control sequence to adjust a resonance element and a magnetic bearing; through the establishment of a dynamic prediction model, the application can accurately predict the change rule of the coupling coefficient in the future control period, the resonance element parameters are adjusted in advance through a coupling coefficient compensation mechanism, the resonance misadjustment problem caused by coupling changes in a high-speed rotating system is effectively solved, a multi-target coordinated decision mechanism is constructed, and the comprehensive balance of energy efficiency optimization, control precision and system stability is realized.