31 results about "Ultrasonic transducer array" patented technology

The application discloses an ultrasonic imaging system for accurately collecting heart sections in any body position, which comprises a plurality of two-dimensional ultrasonic arrays randomly distributed in space, a multichannel ultrasonic signal collecting module and a three-dimensional ultrasonic imaging module; the plurality of two-dimensional ultrasonic arrays, the multichannel ultrasonic signal collecting module and the three-dimensional ultrasonic imaging module are sequentially connected; wherein the plurality of two-dimensional ultrasonic arrays comprises a plurality of ultrasonic transducer arrays forming sub-area line scanning or sub-area surface scanning or cross surface scanning; the application provides doctors with more detailed images, which is helpful for more accurately positioning and evaluating lesions; can solve the problems of difficulty in collecting correct imaging sections, imaging section changes in motion and the like in wearable ultrasonic heart imaging; is not only suitable for the heart, but also suitable for the brain, the liver, the kidney, the urinary bladder, the abdominal aorta, the inferior vena cava and the like human tissues and parts.

The application discloses a kind of array synergic excitation ultrasonic probe battery defect imaging and intervention method and device, the method includes using high-frequency ultrasonic array to soft package battery is scanned, obtains the echo signal data of the soft package battery;According to the echo signal data generation the defect thermodynamic diagram of the soft package battery, according to the defect thermodynamic diagram determines the position and range of the soft package battery defect region;According to the position and range of the defect region, using low-frequency ultrasonic transducer array to the soft package battery is synergic excited, to carry out directional ultrasonic intervention to the defect region.The imaging and positioning of battery internal defect are realized by high-frequency ultrasonic array, and based on positioning result, using low-frequency high-power multi-transducer array to battery is synergic intervened, forms detection and repair closed-loop control mechanism, improves the pertinence and effectiveness of defect intervention, to reduce the damage risk to battery structure.

The application relates to a kind of distributed ultrasonic wind field detection methods based on multi-unmanned aerial vehicle cooperation, belong to low-altitude meteorological detection field, method includes: multi-source high-precision space-time datum acquisition;Each unmanned aerial vehicle node is launched by its ultrasonic transducer array and executes the composite modulation emission and echo demodulation of detection signal to obtain accurate sound wave round trip propagation time;Link length is weighted and fused calibration, and the spatial direction vector under non-orthogonal topology is reconstructed;Kinematics projection elimination and rotor flow field distortion compensation are carried out to extract pure aerodynamic wind field information;By constructing non-orthogonal observation matrix, the horizontal wind field component of the to-be-measured meteorological airspace is solved;Original solving vector is subjected to time domain filtering processing, and stable wind direction and wind speed information is output.The application eliminates the influence of carrier motion and mechanical vibration on acoustic measurement and adapts flexible detection topology, so that high-precision, multi-point correlation real-time stable monitoring of low-altitude area wind field is realized.

This application relates to the field of fluid transport equipment technology and discloses a high-pressure adaptive diaphragm metering pump system based on real-time feedback of diaphragm deformation. The system includes a controller, a servo drive motor, a piston cylinder, and a pump head. An ultrasonic transducer array and temperature / pressure sensors are arranged within the hydraulic oil chamber, and a cleaning component and a direct-acting high-frequency solenoid valve are installed within the flow channel. The controller receives sensor data to dynamically correct the sound velocity, calculates the actual deflection volume and real-time deformation rate of the diaphragm, and then performs closed-loop displacement estimation and adjusts the motor operating frequency. The system combines motor encoder data to normalize the deformation rate to determine the micro-blockage state of the check valve. Upon detection of blockage, the motor is controlled to enter a pressure-holding mode and the solenoid valve is opened, releasing high-pressure hydraulic oil to drive the cleaning component to clean the check valve. After cleaning, volume compensation is performed through integral calculation. This invention achieves adaptive closed-loop control of displacement and online cleaning and maintenance of the equipment.

The present description relates to a biometric device (100) comprising at least: - an array of ultrasonic transducers, each of the ultrasonic transducers comprising a first electrode and a second electrode (110, 112) forming a capacitance at least in a standby mode of the biometric device; - a wake-up circuit (126) configured to detect, when the biometric device is in the standby mode, a change in a value of a total capacitance formed by at least some of the ultrasonic transducers.

This utility model relates to the field of marine biofouling prevention technology and discloses a snap-ring type ultrasonic anti-marine biofouling device for ship main seawater pipes. It includes an intelligent monitoring cabinet and an ultrasonic transducer array. The intelligent monitoring cabinet is electrically connected to the ultrasonic transducer array via a main power transmission cable. This device solves the problem of large-area installation of seawater pipes without damaging the pipe structure, even in situations where space below deck is limited and movement is difficult. By using a discrete oscillator to drive the snap-ring to vibrate at high frequency, it excites higher-order bending modes in the seawater pipe, achieving a wide-range ultrasonic vibration effect to realize the three-dimensional anti-marine biofouling purpose. The snap-ring features good fit to the main seawater pipe, reliability, and durability, and is easy to install. It can be deployed before or after the main seawater pipe is assembled on the ship, allowing installation on both new and old ships. The distributed transducer array improves the ability to apply electrical power and the sound field coverage.

This disclosure relates to porous matrices for acoustic impedance matching and improved touch sensing and fingerprint imaging. The invention discloses the use of acoustic impedance matching to improve the accuracy of ultrasonic touch sensing and fingerprint imaging. Acoustic impedance mismatch between the ultrasonic transducer array and the sensing plate can be reduced to maximize energy transfer and minimize parasitic reflections. Reduction of acoustic impedance mismatch can be achieved using: (i) a composite epoxy resin having a higher acoustic impedance than epoxy resin alone; (ii) one or more matching layers having an acoustic impedance approximately equal to the geometric mean of the acoustic impedance of the sensing plate and the acoustic impedance of the transducer array; (iii) holes or perforations in the sensing plate; or (iv) a geometry formed in the sensing plate. Furthermore, an absorbent layer can be used to suppress parasitic reflections.

The utility model provides a kind of flexible ultrasonic transceiver, including body and control box assembled on body;Control box bottom has via hole and body inside intercommunication, surface assembly has control button and pilot lamp;Body appearance is flat, outer layer is made of packaging material with good flexibility and biocompatibility, inside encapsulated ultrasonic transducer array layer and electrode lead-out layer;Ultrasonic transducer array layer is a kind of flexible film type ultrasonic transducer array based on polymer film;Electrode lead-out layer is a piece of flexible printed circuit FPC, there are lead end and outgoing terminal pad on it, and the wiring of connecting both. The flexible ultrasonic transceiver proposed by the utility model has the advantages of flexible bendable, light and thin portable, simple production process, etc., and has broad application prospect in nondestructive testing, wearable device, biomedical and other fields.

The application discloses an energy-saving purification and precision filtration processing method of recycled silica gel materials, and relates to the technical field of high polymer material recycling. After waste silica gel is melted and plasticized, the waste silica gel is sequentially subjected to two purification procedures of ultrasonic field auxiliary dynamic self-cleaning step-by-step filtration and low-temperature vacuum membrane distillation ring removal, and waste heat generated in the two procedures is reversely transported to a front-end preheating plasticizing procedure through a closed heat-conducting fluid loop. A differential pressure feedforward composite control algorithm is used in the filtration procedure, a differential pressure change rate is used as a feedforward trigger signal to adaptively adjust the power and frequency of an ultrasonic transducer array, white carbon black secondary agglomerates are dispersed in situ, and the filter screen is flushed, so that continuous filtration is realized without shutdown. In the ring removal procedure, D3 to D6 cyclic siloxanes are targetedly removed in a vacuum environment of not more than 1 kPa at 130 DEG C to 160 DEG C by using oil-repellent modified PTFE hollow fiber membranes, the residual amount of D4 / D5 can be reduced to below 0.1 wt%, and secondary thermal degradation is inhibited.

The present application relates to the field of intelligent detection, specifically to a vertical jump explosive force measuring method and device based on ultrasonic ranging and electrostatic detection, the method comprising: arranging an ultrasonic transducer array capable of measuring the vertical jump height of a human body; a test person stands in the ultrasonic transducer array to perform a vertical jump test, and a TDOA-based positioning method is used to measure the vertical jump height of the human body; an electrostatic detector is used to collect electrostatic signals during the vertical jump of the human body, and the take-off time and landing time of the human body are obtained according to the electrostatic signals, and then the jump time is obtained; the electrostatic detector and the ultrasonic transducer array are synchronously sampled; after the vertical jump process of the test person is completed, the vertical jump explosive force of the human body is calculated according to the vertical jump height of the human body measured by the ultrasonic transducer array and the jump time measured by the electrostatic detector. The present application combines ultrasonic ranging technology and electrostatic detection technology, has low cost, strong environmental adaptability, and is convenient to measure; and the non-contact detection method improves the comfort during testing and the results are more accurate.

Provided is an ultrasonic endoscope having, at a distal end portion, an ultrasonic transducer array in which a plurality of ultrasonic transducers are arranged; a shield cable having a plurality of signal lines and a plurality of shield members made of metal disposed outside the signal lines; a wiring portion having a plurality of connection portions that respectively electrically connect the plurality of signal lines to the plurality of ultrasonic transducers; a ground line portion that is electrically connected to the plurality of shield members and has thermal conductivity; a sheet-shaped first thermal conductive member disposed on a side surface of the ultrasonic transducer array; and a second thermal conductive member that thermally connects the first thermal conductive member to the ground line portion. Thus, an ultrasonic endoscope that can improve the accuracy of diagnosis in ultrasonic diagnosis is provided.

The application provides a brain-computer interface device control method and system and a brain-computer interface device, and relates to the field of brain-computer interface control.The power supply unit in the brain-computer interface device converts the periodic vibration deformation corresponding to the heartbeat or respiration of a target user into electric energy through the piezoelectric ceramic arranged therein, thereby realizing self-powered supply of the brain-computer interface device.In addition, the brain-computer interface device can perform multi-channel synchronous acquisition on the brain signals of the target user through the ultrasonic transducer array contained therein, and can accurately extract and feed back the brain signals of the deep brain region, thereby solving the problems of low safety, poor power supply convenience and insufficient signal accuracy of the existing brain-computer interface device.

This invention provides a method for repairing concrete defects in bridge construction, belonging to the field of bridge construction technology. The invention constructs an upper-layer model aimed at maximizing dimensionless density and a lower-layer model aimed at maximizing dimensionless seepage expulsion efficiency, coupled with an interface filling rate to form a two-layer game model to determine the graded grouting pressure sequence and pulse grouting time interval. A hydrophilic epoxy-polyurethane composite grouting material is injected into the cracks, incorporating microcapsules encapsulating paraffin-based phase change materials, while simultaneously setting up a thin-film heating curing device. Polyurea-shelled dual-core microcapsules are incorporated into the repair mortar to impart self-healing ability to the repair mortar layer. After curing, repeated ultrasonic transducer array scanning and comparison of cross-sectional wave velocity field images are used to verify the repair density. This method solves the problem of insufficient filling density of deep cracks during the repair of bridge concrete defects.

This invention provides a method for early warning of borehole wall collapse risk in impact-drilled pile foundations, belonging to the field of construction risk early warning technology. This invention collects multi-source signals by deploying an ultrasonic transducer array and a mechanical vibration acceleration sensor array at multiple depth nodes within the borehole. It extracts borehole wall collapse characteristic components from strong vibration interference using empirical mode decomposition and independent component analysis. Simultaneously, it inputs the multi-dimensional time-series data of the entire borehole into a minimum description length change point detection algorithm to detect abrupt changes in borehole wall state and outputs a hazard level score. Sensor data from each depth node is input into a physically embedded spatiotemporal graph attention model to output the collapse risk probability and estimated collapse depth location. Furthermore, an adaptive learning rate adjustment function driven by a stratum change intensity index dynamically adjusts the online update learning rate of the artificial intelligence model. Finally, it integrates multi-level early warning signals to output a final early warning conclusion, solving the technical problem of the inability to provide real-time and accurate early warning of borehole wall collapse risk during impact-drilled pile construction.

The utility model relates to the field of lavender extraction, concretely relates to a kind of high-efficiency extraction device of lavender flavone based on ultrasonic auxiliary, including extraction tank, high-speed centrifuge, temperature control module and multiple ultrasonic generators, extraction tank is located the top of high-speed centrifuge, the discharge outlet of extraction tank is connected between high-speed centrifuge feed port by solenoid valve, the discharge outlet of high-speed centrifuge is connected with the feed port of extraction tank by material circulation unit, temperature control module is fixedly installed in extraction tank, the high-efficiency extraction device of lavender flavone based on ultrasonic auxiliary, by ultrasonic transducer array, intelligent linkage's centrifugal system and accurate temperature control module, the problem of low efficiency of traditional extraction process, component destruction is seriously solved. Especially suitable for the large-scale extraction of heat-sensitive natural products.

A novel capacitive micromachined ultrasonic transducer (CMUT) array is provided and the CMUT array employs an additional electrically-addressable conductive shield that isolates each array element individually, hence the novel array is coined as Faraday Caged CMUT array. The state of this conductive shield corresponding to each array element can be set as floating for reduced parasitic and cross-coupling capacitance or grounded for reduced electrical crosstalk. Perpetual, reliable operation in floating state without the risk of catastrophic dielectric electric field breakdown event is enabled by the self-discharging mechanism through diamond emitters featuring high field emission efficiency and acting as lightning rods in a cavity. The lightning rod structure features a movable diamond membrane, which deflects towards the diamond emitter due to electrostatic force (acting as a charge-controlled capacitive device) closing the gap to facilitate the safe intermittent discharging.

This invention discloses a directional sound fusion analysis system and method based on voiceprint splicing, belonging to the field of directional sound fusion technology. Based on visitor status data within the target area, this invention distinguishes the current scene's browsing mode, determines the interference risk status, acquires the exhibition hall's spatial data and material information, calculates the reflected sound and its loudness distribution at different positions and angles reaching the target point according to the relative orientation of the visitor's position coordinates and the ultrasonic transducer array, obtains the reflection interference factor, outputs the optimal sound state parameters, calculates the beam pointing angle based on the visitor's real-time coordinates, and adjusts the main lobe width of the ultrasonic array under the constraint of the optimal sound state parameters for directional projection. This invention ensures that the optimal sound state of the broadcasting unit can be clearly projected to the target area, while minimizing crosstalk to adjacent areas, providing visitors with a high-quality guided tour service in the optimal listening area with appropriate volume and no interference.

This invention discloses a method and system for identifying the corrosion state of wind turbine bolt materials. The method includes: acquiring raw signals using a ring ultrasonic transducer array in full-matrix acquisition mode; obtaining focused echo signals through full-focusing post-processing; performing wavelet packet decomposition and soft-threshold denoising on the focused echo signals to extract the energy entropy of each sub-band; concatenating the raw time-domain signal, sub-band reconstructed signal, and energy entropy into a multi-channel feature sequence; inputting the sequence into a deep convolutional neural network combined with a channel attention mechanism to extract corrosion feature semantic vectors; acquiring load and environmental data and mapping them to external feature vectors, fusing them with the corrosion feature semantic vectors through tensor product fusion to obtain a dynamic embedding vector; constructing the dynamic embedding vectors of the same bolt at different times as an input sequence, and outputting the corrosion level, residual strength ratio, and remaining life in parallel through a bidirectional long short-term memory network. This invention can improve the accuracy and multi-dimensional quantitative assessment capability of identifying the corrosion state of wind turbine bolts under complex and harsh working conditions.

Ultrasonic Probe This description relates to an ultrasonic probe (200) comprising: - an interconnecting substrate (230); - an array of ultrasonic transducers (201); - a control integrated circuit (202) electrically connected to the array of ultrasonic transducers and positioned on a first face (230A) of the interconnecting substrate; - a capacitive structure (210) positioned on a second face (230B) of the interconnecting substrate opposite the first face, the capacitive structure comprising a mechanically rigid insulating substrate, including at least one dielectric layer, and two metallic elements insulated from each other and positioned on either side of each dielectric layer, forming at least one capacitor. Figure for the abbreviation: Fig. 2A

This invention discloses a miniaturized, high sound pressure level directional acoustic wave control device, comprising a housing, inside which are installed a power module, a signal processing module, a power amplification module, and a controller; a directional acoustic wave emitting array is located on the top of the housing; the output of the controller is connected to the inputs of the signal processing module and the power amplification module respectively, the output of the signal processing module is connected to the input of the power amplification module, and the output of the power amplification module is connected to the directional acoustic wave emitting array; the directional acoustic wave emitting array includes a bracket, and multiple ultrasonic transducers are arrayed on the upper surface of the bracket. This invention adopts a compact circuit layout and modular installation structure, significantly reducing the size of the device; it utilizes a high-efficiency signal processing chip and power amplification technology to achieve high sound pressure level output; it improves the directionality of the sound waves through the ultrasonic transducer array and acoustic lens; and it is equipped with an intelligent controller and a power management system to support diverse function adjustments and long-term stable operation.

A cylindrical acoustic tweezer device belongs to the field of ultrasonic array suspension and manipulation. It mainly includes a cylindrical support, an ultrasonic transducer array, two PCB drive boards and two ArduinoMega development boards. The ultrasonic transducer array has a total of 128 transducers, which are installed on the inner side of the cylindrical support. Each two ultrasonic transducers correspond to a drive unit, and all the drive units are integrated in the PCB drive board and connected with a direct current stabilized power supply. In the device, the host computer calculates the phase of the ultrasonic transducer required to generate the desired standing wave sound field according to the position of the suspended object, and then transmits the phase data to the ArduinoMega development board. The ArduinoMega development board sends corresponding pulses, which are amplified by the PCB drive board and applied to the transducer to generate a standing wave sound field. If two suspended objects are to be gradually moved closer to each other along the horizontal axis, the host computer calculates the transducer phase required to generate the corresponding sound field and transmits it to the two ArduinoMega boards, so that the two columns of standing waves in the sound field gradually approach, thereby driving the suspended objects to approach.

This application provides a safety control method for robots, a robot, and a readable storage medium, relating to the field of robot control technology. The robot includes electronic skin, which comprises a proximity sensing layer and a contact sensing layer. The proximity sensing layer includes an ultrasonic transducer array, which includes multiple transducer units. The method includes: sequentially controlling corresponding transducer units to emit ultrasonic pulses towards an obstacle and receiving echo signals reflected from the obstacle (multiple transducer units emitting ultrasonic pulses and receiving echo signals simultaneously are not adjacent). Based on the ultrasonic pulses and echo signals, the distance and approach speed between the obstacle and the robot are determined. Based on the feedback signal generated by the contact sensing layer in response to the contact between the obstacle and the robot, the contact force and its rate of change between the obstacle and the robot are determined. The robot's operation is controlled based on these two pieces of information. This solution addresses the problem of potential personal injury during human-robot collaboration.

This invention belongs to the field of audio signal processing and privacy protection technology, specifically relating to an adaptive ultrasonic anti-recording interference method based on local AI voice feature analysis. The method involves: acquiring environmental audio signals through an audio acquisition module; performing voice feature analysis on the pre-processed audio signals; establishing a dual-microcontroller collaborative working mode; controlling the ultrasonic emission module to generate and drive the ultrasonic transducer array to emit ultrasonic interference signals; the second microcontroller dynamically adjusting interference parameters based on a closed-loop feedback compensation mechanism; and a power management module switching system power consumption modes according to the voice detection status to achieve multi-mode power management. This invention relies on a local lightweight AI model to complete voice feature extraction, achieving real-time voice detection and interference parameter generation without relying on a network. This eliminates network latency and avoids the privacy leakage risks of uploading audio data to the cloud, making it suitable for offline use scenarios of portable devices.

A kind of lithium battery non-destructive recovery system based on multi-frequency ultrasonic cavitation, variable-frequency pulse ultrasonic transducer array is arranged in main stripping reaction tank, transducer array is arranged at the bottom and side wall of main stripping reaction tank, and is connected to multi-frequency signal generator;Micro-bubble injection unit is arranged at the bottom of main stripping reaction tank, including microporous aeration device or dissolved gas release nozzle, and pole piece transmission mechanism penetrates through multiple-stage processing tank, for conveying waste lithium battery pole piece in tension or suspended state to pass through swelling tank, main stripping reaction tank and rinsing tank in sequence.The spatial arrangement of variable-frequency pulse ultrasonic transducer array in main stripping reaction tank is adopted in the present application, staggered cross arrangement is adopted, sound field is diffused and superimposed in transverse and longitudinal direction, standing wave blind area is effectively eliminated, and cavitation coverage of "deep and shallow consideration, strong and weak complementation" is realized in macroscopic, to ensure the complete stripping of dense ternary material coating.

The present application belongs to the technical field of biosensor, and particularly relates to a radio frequency treatment head temperature sensing real-time early warning system. The system comprises a radio frequency energy generation module, a biocompatible integrated treatment head, a short pulse laser excitation unit, an ultrasonic transducer array, a complex impedance real-time monitoring module and a central cooperative processing system. The integrated treatment head is packaged with a radio frequency electrode, a light signal transmission end and an acoustic signal pickup probe; the laser excitation unit emits pulsed laser during the radio frequency intermittent period to induce temperature-related ultrasonic signals of the tissue; the transducer array captures the acoustic signals in real time; and the processing system inverses the three-dimensional temperature field distribution inside the tissue according to the ultrasonic signals and the complex impedance data and executes early warning in real time. The present application shortens the thermal feedback lag to the microsecond level by using the photoacoustic effect, eliminates the early warning delay risk, and realizes high-precision deep thermal field monitoring and active energy shaping through multi-modal data fusion.

This invention belongs to the technical field of plasma cleaning equipment, specifically relating to a vacuum plasma cleaning device and method, including a frame housing, a vacuum chamber assembly, a drum assembly, an electrode assembly system, and a control system. The electrode assembly system includes multiple independent electrode sections distributed along the circumference of the glass drum. The control system includes a rotary encoder, a synchronization controller, and a multi-channel radio frequency power distribution module. The inner wall of the glass drum is provided with spiral guide ribs, and an ultrasonic transducer array is installed at the end of the glass drum. This invention effectively solves the problem of plasma treatment intensity fluctuations caused by the periodic changes in material position during drum rotation. By spatiotemporal coupling of "macroscopic mechanical disturbance by spiral guide ribs" and "microscopic interface deagglomeration by ultrasonic vibration," a multi-level agglomeration path is constructed, achieving efficient and uniform dispersion of materials.

The application discloses a cap type ultrasonic treatment device and a use method. The device comprises a wearable cap type support structure, a flexible ultrasonic transducer array, a distributed drive circuit, a control module, a temperature monitoring module and a power supply module. The flexible ultrasonic transducer array is integrated inside the support structure, the distributed drive circuit independently drives each transducer unit, and the control module dynamically adjusts the ultrasonic output parameters according to the data fed back by the temperature monitoring module. The method realizes safe and controllable head ultrasonic treatment by wearing the device, setting treatment parameters, outputting ultrasonic energy, real-time monitoring of scalp temperature and automatic adjustment of output based on temperature feedback. The application adopts a flexible cap type wearable design, realizes stable adhesion with the head and uniform coverage of ultrasonic energy, has an intelligent temperature control protection function, improves the use comfort and safety, and is suitable for daily head ultrasonic intervention in a family and mobile scene.