53 results about "Ultrasonic beam" patented technology

The invention discloses a marine pipeline leakage point and oil leakage accurate detection system and method, a focused ultrasonic detection module of the system emits ultrasonic focused sound beams to a pipeline wall, a signal acquisition and analysis module is used for receiving an ultrasonic echo signal and performing feature extraction, a fluid noise elimination and compensation module filters and corrects the signal, and a detection module is used for detecting the leakage point and oil leakage of a marine pipeline. The sensor array attached to the pipe wall can monitor the temperature, pressure and environment change of the marine pipeline in real time, the control and feedback unit automatically adjusts the focus depth and acoustic beam energy according to an analysis result, fine scanning and enhanced detection of a target area are achieved, and finally leakage point space coordinates and leakage rate estimated values are output. The system can stably operate for a long time in a high-noise and high-pressure marine environment, is high in detection sensitivity and strong in anti-interference capability, can achieve millimeter-level leakage point positioning precision, and is suitable for online health monitoring and intelligent safety management of marine oil and gas conveying pipelines, offshore wind power cooling systems and deep sea energy channels.

The invention discloses an ultrasonic detection method for a composite material structure, and the method is a layered detection imaging method based on transmission ultrasound time reversal adaptive focusing, and comprises the steps: arranging phased arrays at two sides of a standard component and a to-be-detected large-thickness variable cross-section composite material structure; a direct contact method is adopted, prior material properties of a tested piece do not need to be input, and deflection of an ultrasonic beam is regulated and controlled by time delay excitation, so that ultrasonic imaging distortion caused by a complex fiber trend can be effectively avoided, and detection imaging of layering defects of a large-thickness variable-cross-section composite material structure is realized.

The present application provides an ultrasonic diagnostic apparatus, a control method of an ultrasonic diagnostic apparatus, a recording medium, and a computer program product. The present application is directed to accepting designation of a two-dimensional position on an ultrasonic image and being able to control the ultrasonic diagnostic apparatus in accordance with the designated position. A display section (118) accepts designation of a point on a displayed ultrasonic image through a touch operation or the like. A position information conversion section (130) converts coordinates of the point shown in a coordinate system of the ultrasonic image into coordinates in a coordinate system used by the ultrasonic diagnostic apparatus (100) in ultrasonic beam scanning. A central control section (120) and a control position setting section (132) use the coordinates obtained through the coordinate conversion to perform control of the ultrasonic diagnostic apparatus (100) (e.g., setting of a ROI).

The invention provides an optic nerve regulation and control system based on an ultrasonic technology, a first ultrasonic module is deployed on the outer side of a target human eyelid and is provided with an Archimedes spiral type first ultrasonic array facing the human eye, and the first ultrasonic array is configured to generate a gathered ultrasonic beam which acts on a human eye retina ganglion cell area in a targeted manner; the positioning module is deployed on the outer side of a target human eyelid and is configured to measure three-dimensional geometric data when a human eyeball horizontally faces the front and measure the depth distance of a human eye retina ganglion cell area in the human eye; the optic nerve response prediction module is pre-trained with an optic nerve response prediction model facing a target human body, and the optic nerve response prediction model is configured to adjust sound intensity output of the first ultrasonic array based on stimulation feedback prediction of human eye retina ganglion cells. According to the invention, the optic nerve regulation and control system satisfies non-intrusive, high-precision and self-adaptive requirements, and has optic nerve regulation and control and repair functions.

The utility model belongs to the field of pest prevention and control, and particularly relates to a pest vibration repelling type protection device which comprises a rack, a lower mounting frame, an upper mounting frame, fastening screws and the like, the lower mounting frame is rotatably connected to the upper portion of the rack, and the upper mounting frame is slidably connected to the lower mounting frame. And the upper mounting frame is fixed on the lower mounting frame through two fastening screws which are symmetrically distributed. By arranging the ultrasonic bird repeller, ultrasonic wave beams with specific frequency can be emitted, discomfort of birds is effectively caused, a repelling effect is generated, meanwhile, by combining the use of the laser bird repeller, high-intensity laser rays can deeply interfere with visual perception of the birds, the repelling effect is further enhanced, and through cooperative operation of the ultrasonic bird repeller and the laser bird repeller, the bird repelling effect is improved. A comprehensive bird repelling solution is constructed, the repelling efficiency is improved, the bird adaptation possibility is reduced, and compared with a traditional bird repelling device depending on a single technology, the bird repelling device has obvious superiority.

Disclosed herein are ultrasonic transducer systems comprising: an ultrasonic imager comprising a plurality of pMUT transducer elements; and one or more circuitries connected electronically to the plurality of transducer element, the one or more circuitries configured to enable: pulse transmission and reception of reflected signal for the ultrasonic transducer; and control of the ultrasonic transducer, the control of the ultrasonic transducer comprising focusing ultrasonic beam in an elevation direction.

This application discloses a planar scanning-based immersion battery thermal runaway identification device and method, relating to the field of battery energy storage safety monitoring technology. The device consists of a fully enclosed immersion tank, immersion liquid, ultrasonic phased array sensors located at the corners of the inner wall of the tank, and a signal processing module. The sensors are installed below the liquid surface and above the individual battery cells, emitting fan-shaped ultrasonic beams to form a horizontal logical scanning plane covering the entire diagonal length of the bottom surface of the module. This identification method employs active scanning and physical feature extraction logic: first, an environmental acoustic impedance reference spectrum is established using phased array beams; then, echo changes within the scanning plane are monitored in real time. This invention effectively eliminates the interference of battery bulging and mechanical vibration on traditional monitoring methods, achieving refined characterization and centimeter-level precise positioning of the gas-generating physical characteristics during the thermal runaway evolution process, significantly improving the intelligent safety level of immersion energy storage systems.

The invention provides an ultrasound diagnosis assistance apparatus and a recording medium. The present invention addresses the problem of enabling a user to easily grasp a region in which an ultrasonic beam has been scanned and a region in which an ultrasonic beam has not been scanned in a target tissue of a subject. The three-dimensional model forming unit acquires a three-dimensional model of the target tissue represented by the coordinates in the model coordinate system at each position. The probe position and orientation detection unit acquires the position and orientation of the ultrasonic probe. The position and orientation information conversion unit converts position and orientation information indicating the position and orientation of the ultrasonic probe into converted position and orientation information in the model coordinate system. The scanned region specifying unit specifies a model scanning surface in the model coordinate system on the basis of the converted position and orientation information when the ultrasound beam is scanned on the target tissue, and specifies, as a scanned region, a region of the three-dimensional model through which the model scanning surface passes. The display control unit displays the scanned area and the non-scanned area in the three-dimensional model in different display modes.

The invention relates to an efficient and long-life inorganic dry powder coating with a self-humidifying function and a preparation method thereof, and belongs to the technical field of inorganic coatings. The inorganic dry powder coating comprises the following components in parts by weight: 30-40% of potassium silicate, 10% of expanded perlite, 10-25% of high-activity sepiolite nanofiber, 10% of calcined shell powder, 18-28% of quartz sand and 2-3% of an auxiliary agent. The preparation method comprises the following steps: firstly, treating a sepiolite raw material by virtue of a synergistic process of ultrasonic beam splitting and citric acid activation, so as to obtain high-activity sepiolite nanofibers which are fully dissociated, have nano hierarchical pore channels and are rich in hydrophilic groups; and compounding the high-activity sepiolite nanofiber with calcined shell powder, expanded perlite, quartz sand and potassium silicate to synergistically construct an inorganic coating system with optimized microstructure and efficient moisture absorption / liberation performance. The coating is simple in preparation process and environment-friendly, has excellent mechanical properties and self-humidity-regulating performance, still keeps an efficient humidity-regulating effect in a long-term service environment, and has outstanding long-acting stability.

The invention relates to the technical field of laser processing, and discloses a method for detecting the width of a kerf in laser cutting, which comprises the following steps: controlling a phased array transducer to emit an ultrasonic beam, and enabling the ultrasonic beam to be coupled into an auxiliary gas flow coaxial with the laser beam; the auxiliary gas flow is used as an acoustic waveguide, and an ultrasonic beam is guided into the kerf of the workpiece; the phased array transducer receives an ultrasonic echo signal reflected by the inner wall of the kerf; and the control and data processing unit processes the echo signal and determines the width of the kerf according to the flight time of the ultrasonic wave. Global scanning and local focusing of the ultrasonic beam are further achieved through the phased array technology, the determined kerf width can be compared with a preset target value, and closed-loop control is conducted on laser cutting process parameters. According to the invention, high-precision and non-contact on-line measurement of the width of the narrow kerf can be realized, and the quality and consistency of laser cutting are effectively improved.

This invention belongs to the field of physical testing, specifically relating to an automated detection system for surface defects on a 3D sensor protective film. The system includes an acoustic-thermal excitation device, a thermal imaging sensing unit, an optical coherence tomography (OCT) scanning device, and a data processing and analysis terminal. The acoustic-thermal excitation device emits a focused ultrasonic beam onto the protective film surface to generate an acoustic-thermal effect; the thermal imaging sensing unit captures the spatiotemporal attenuation characteristics of the surface temperature field and generates a two-dimensional thermal diffusion feature map; the OCT scanning device adaptively acquires a three-dimensional structural cross-sectional image of the protective film based on the hotspot location; the data processing and analysis terminal performs spatial alignment and pixel-level fusion of multimodal data, and uses a deep neural network to identify defects. Through the above technical solution, this invention achieves non-contact, non-destructive, high-precision detection, balancing detection efficiency and accuracy. It can accurately identify deep, minute defects under complex coatings and predict the impact of defects on optical performance.

The invention discloses an ultrasonic self-adaptive scanning method and system for EIT dynamic path planning, and belongs to the technical field of medical imaging. Reconstructing an impedance distribution image in real time based on EIT and detecting an abnormal region; the coordinates of the abnormal area are mapped to an ultrasonic coordinate system, and breathing phase compensation is carried out; planning an ultrasonic beam scanning path according to clinical constraint conditions; controlling the ultrasonic beam to scan along the planned path; performing image analysis on the scanning area; and updating system parameters according to an analysis result. According to the method, abnormal coordinates detected by EIT are accurately converted into an ultrasonic beam deflection angle, clinical constraint path planning of a high-cost area of a rib shielding area and breathing phase dynamic compensation taking end expiratory as a benchmark are combined, so that the system realizes full-closed-loop control from abnormal sensing, path planning to beam execution, and the accuracy of the system is improved. The problems of scanning failure caused by rib shielding and coordinate drifting caused by respiratory movement in clinic are effectively solved, and the reliability of dynamic monitoring of the thoracic cavity is remarkably improved.

The invention relates to the technical field of metal material processing, and discloses a preparation method of a copper-silver alloy for a high-strength and high-conductivity new energy wire harness, which comprises the following steps: inhibiting segregation caused by copper-silver density difference and refining grains by using a rotating traveling wave magnetic field and a high-energy ultrasonic beam through magneto-acoustic double-field coupling rheological continuous casting. And then under a cryogenic environment, special modified polysiloxane-graphene hybrid conductive gel is matched for large-strain drawing, the gel keeps semi-solid lubrication at a low temperature, and a conductive channel is established. And finally, establishing an axial temperature gradient by utilizing the temperature difference between the cryogenic state of the wire rod and the contact electrode area, and applying a unipolar electric pulse to trigger the Thomson effect. According to the process, a Thomson heat flow item is used for correcting a Joule thermal field, and electron wind power is used for driving silver atoms to be directionally separated out along high-density dislocation while overheating softening of a copper matrix is restrained. The method effectively solves the problem that the strength conductivity is inverted due to solidification segregation and traditional heat treatment, and the comprehensive performance of the copper-silver alloy is synchronously improved.

The invention discloses an electromagnetic ultrasonic method, device and system for realizing regional C-type scanning thickness measurement, and relates to the technical field of industrial detection, and the method comprises the steps: obtaining the surface curvature information of a to-be-measured object; dynamically adjusting the incident angle and the signal gain of the ultrasonic beam based on the corresponding surface curvature information, and setting the thickness corrosion value and the thickness reference value of the to-be-measured object; based on the incident angle and the signal gain of the ultrasonic beam, acquiring an echo signal of each cell in a grid sticker in a detection area of the object to be detected; the grid paster is pasted on the surface of an object to be detected; the grid stickers correspond to a plurality of cells; generating a plurality of pieces of thickness data based on the echo signal of each cell; and mapping the plurality of thickness data into a pixel value image, and carrying out thermodynamic diagram fusion projection to obtain a thickness thermodynamic distribution diagram of the detection area of the to-be-detected object. According to the invention, thickness scanning and visual display of the detection area can be realized.

An ultrasound imaging and backscatter system includes an ICE ultrasound catheter having an ultrasound pMUT transducer array disposed within a distal end of the ultrasound catheter and including a plurality of transducer array elements disposed on a substrate. One end of the catheter shaft is connected to the handle assembly and the other end is connected to the ultrasonic transducer array. The catheter shaft accommodates an electronic flexible cable in communication with the signal trace and directs each of the plurality of transducer array elements to transmit and receive an ultrasound beam, receives at least one signal from the plurality of transducer array elements, and constructs at least one image characterizing one or more tissue components of the scanned object. An ultrasound imaging system is used to measure tissue thickness, tissue scar, and lesion assessment for left atrium, right atrium, left ventricle, and right ventricle tissue wall characteristics and other intracardiac tissue anomalies.

The application discloses a kind of grain map neural network's weld ultrasonic beam path correction method, it is related to the field of welding structure nondestructive testing, by obtaining the EBSD data of weld area, extract grain orientation, grain boundary type and spatial distribution characteristics, construct grain map structure, and calculate initial propagation time weight based on anisotropic sound velocity model;Using graph neural network to learn end to end for grain node and grain boundary edge features, output corrected edge propagation time weight;The time of flight from element to imaging pixel is obtained by shortest path search, and the time of flight predicted by neural network surrogate model is fused and corrected;Finally, the corrected time of flight is used to perform full focus imaging, and the weld defect image after optimizing the beam path is obtained.The method combines material microstructure characteristics and machine learning model, solves the problem that the beam path description is not fine enough in existing weld ultrasonic testing, significantly improves the accuracy and reliability of defect detection.

The application discloses a kind of steel plate side edge detection devices;Including the transverse movement of movable support, the downside of the movable support is provided with flaw detection mechanism, the flaw detection mechanism includes the flaw detection probe of inclined arrangement, the flaw detection probe is connected with controller, the flaw detection probe is under the control of the controller and synthesis generates the synthesis ultrasonic beam required for flaw detection, and based on the synthesis ultrasonic beam realizes the side edge of the steel plate and carries out automatic flaw detection.The present application is driven by roller to move longitudinally, steel plate is provided with steel plate side edge detection device on both sides, when steel plate moves longitudinally, steel plate side edge detection device on both sides of steel plate detects two side edges of steel plate respectively, so as to greatly improve the efficiency and accuracy of steel plate side edge detection.

An ICE imaging system is disclosed, which comprises an Intracardiac echocardiography (ICE) catheter having a longitudinal axis, a proximal end, and a distal end. The ICE catheter corresponds to a micro-electromechanical (MEMS) or other transducer based phased array ultrasound catheter with an out diameter of 6 French or smaller for delivery through an internal jugular, subclavian, axillary, innominate venous system into heart chambers for the purpose of lead placement for a pacemaker or other implantable cardioverter defibrillator (ICD) device. Further, a catheter shaft houses an electronic flex cable which is in communication with at least one signal trace, and is configured to direct a plurality of transducer array elements to transmit and receive ultrasound beams, receive at least one signal from the plurality of transducer array elements, and construct at least one image of at least a portion of the heart based on the at least one signal.

The goal is to achieve both an expanded range of sound field formation and suppression of the decrease in directivity caused by variations in the resonant frequencies of sound sources within the MEMS array. [Solution] An ultrasonic generator that emits an ultrasonic beam, comprising a cantilever structure sound source created by a MEMS (Micro Electro Mechanical Systems) process, comprising a plurality of cantilever vibrators arranged in an array, and wiring connected to the plurality of cantilever vibrators so as to be able to supply electrical signals individually to each of the plurality of cantilever vibrators, wherein the plurality of cantilever vibrators emit ultrasonic waves that form the ultrasonic beam in response to the supply of the electrical signals.

Title of Invention: Focused ultrasonic treatment by mechanical and electronic control along a calculated trajectory A computer execution method for controlling a device (1) intended for use in opening the blood-brain barrier, the method comprising the steps of: calculating a trajectory; generating a focused ultrasonic beam (12) that generates a focal point (13); and controlling the device (1) to move the focal point (13) along the trajectory to cover a predetermined target volume.

An ultrasonic imaging device and method, a plurality of transmitting apertures are arranged on the ultrasonic probe, one transmitting aperture transmits the ultrasonic beam along the corresponding at least one scan line, thereby determining a plurality of scan planes, because the plurality of scan lines in the same scan plane intersect at an end point in the opposite direction of the transmission of the ultrasonic beam, and the end point is located on both sides of the array element group and the scanning site, so the imaging range in space is larger than that of the conventional fan scanning mode, thereby maximizing the near-field view.

The application provides a glass melting furnace waste gas denitration air volume precise regulation and control method and system. Among them, the method is to arrange an ultrasonic Doppler sensor group around the glass melting furnace flue, synchronously emit ultrasonic beams to collect flow velocity fluctuation data of waste gas denitration air volume demand, decompose time sequence waveforms to generate multi-dimensional frequency characteristics, and aggregate into a multi-dimensional flow velocity vector representing the flow field state; correct the vector deviation by spatial coordinate alignment and time sequence synchronization, extract the difference change amount to generate a flow field heat map; establish a space-time correlation model of the multi-dimensional flow velocity vector and the heat map, predict the air volume regulation threshold that meets the denitration demand, convert it into a fan speed control signal to drive the actuator; according to the correlation between the waste gas fluctuation response data caused by the change of the fan speed and the heat map update frequency, dynamically adjust the multi-dimensional flow velocity vector to form a closed-loop control. The application realizes the dynamic demand of denitration air volume and the millisecond closed-loop response of the fan execution, improves the flue gas purification efficiency and reduces the energy consumption.

A method of controlling an ultrasonic probe includes: setting imaging conditions of an ultrasonic probe for acquiring ultrasonic images of a subject; transmitting an ultrasonic beam from the ultrasonic probe towards the subject; receiving, by the ultrasonic probe, an echo from the subject in accordance with the imaging conditions to generate an ultrasonic image of the subject based on the echo received by the ultrasonic probe; identifying the imaging site included in the ultrasonic image; and determining whether to change the imaging conditions based on the identified imaging site. Determining whether to change the imaging conditions includes: identifying a first category from the plurality of categories that corresponds to the identified imaging site; identifying a second category from the plurality of categories that correspond to the set imaging conditions; and maintain the imaging conditions based on the first category and the second category matching.

The invention discloses an implantable intelligent blood pressure adjusting method and system based on a micro-nano ultrasonic device, and relates to the technical field of biomedical engineering.The implantable intelligent blood pressure adjusting method comprises the steps that a lithium niobate piezoelectric micromechanical ultrasonic transducer implanted near the renal door and the renal artery is controlled, and ultrasonic beams with the set center frequency are emitted to the blood vessel wall; echo signals reflected by the front wall and the rear wall of the blood vessel are collected; performing time domain peak detection on the echo signals, calculating the transit time of ultrasonic waves in a blood vessel cavity, calculating the instantaneous diameter of the blood vessel by combining the sound velocity, generating a real-time blood pressure value based on inversion of a blood vessel wall elastic mechanical model, and generating a blood pressure state judgment result; transmitting set intensity focused ultrasound to act on renal door sensory nerves according to a judgment result, and activating sensory pathways to release calcitonin gene-related peptides to induce vascular smooth muscle relaxation so as to reduce blood pressure. The lead-free single crystal lithium niobate piezoelectric micromechanical ultrasonic transducer is introduced, so that the biocompatibility and safety of the implanted device are greatly improved.

The ultrasonic phased array droplet control equipment in the oil phase system comprises an oil tank, an ultrasonic phased array device and a control device, an oil phase system is contained in the oil groove, and a super-hydrophobic surface layer is arranged at the bottom of the oil groove; the ultrasonic phased array device comprises a plurality of ultrasonic probes arranged in an array, the ultrasonic probes are immersed in the oil phase system, and a plane formed by the plurality of ultrasonic probes is parallel to the super-hydrophobic surface layer; the control device is in control connection with the ultrasonic phased array device, the control device plans the moving path of the liquid drops and controls the multiple ultrasonic probes to generate ultrasonic beams focused above the liquid drops, and the liquid drops move along with the focus of the ultrasonic beams according to the moving path. Therefore, accurate control over the liquid drops is achieved, automatic and intelligent operation of the whole device is achieved, and the experiment efficiency and the control precision are improved.

The application relates to an ultrasonic beam forming method combining narrow-band segmentation and directional projection, and belongs to the technical field of ultrasonic imaging. Firstly, ultrasonic echo signals received by each array element are sequentially segmented into multiple narrow-band signals to obtain narrow-band time-frequency signal spectrums corresponding to each array element; time-frequency point data in the narrow-band time-frequency signal spectrums corresponding to each array element are sequentially extracted to form a time-frequency point input data group; a sample covariance matrix under the condition of narrow-band segmentation is constructed based on the time-frequency point input data group; the obtained sample covariance matrix is subjected to spatial decomposition to obtain a sample signal subspace; a directional constraint projection multiplier of the current time-frequency point is constructed; an output of a spatial domain beam former of the current time-frequency point is solved; and the obtained scan line time-frequency signal spectrum is subjected to time-frequency conversion to reconstruct time domain scanning data; the application can significantly reduce the main lobe width of an ultrasonic beam, improve the resolution of ultrasonic imaging, and obtain high-quality ultrasonic imaging results.

To provide an ultrasonic diagnostic apparatus which enables a user to easily photograph a cross section of an organ suitable for measurement, and a control method of the ultrasonic diagnostic apparatus.SOLUTION: An ultrasound diagnostic apparatus includes an image acquisition unit (31) that acquires ultrasound images of a plurality of frames in which a measurement target organ is imaged by transmitting and receiving an ultrasound beam using an ultrasound probe (1), a feature amount calculation unit (24) that calculates a feature amount of the measurement target organ in each of the ultrasound images of the plurality of frames by performing image analysis on the ultrasound images of the plurality of frames, a probe operation direction calculation unit (27) that calculates a target operation direction of the ultrasound probe (1) for imaging an optimum measurement cross section suitable for measurement of the measurement target organ based on a time-series change in a plurality of feature amounts calculated in the ultrasound images of the plurality of frames, and a notification unit (28) that notifies a user of the target operation direction.SELECTED DRAWING: Figure 1

An information processing apparatus, an information processing method, and a storage medium capable of improving the accuracy of determining arteries and veins of a blood vessel are provided. An information processing apparatus that performs processing on an ultrasonic image (U) generated by transmitting an ultrasonic beam (UB) toward a living body (30) from a transducer array (13) and receiving ultrasonic echoes generated in the living body (30) has a blood vessel detection section (71) that detects a blood vessel region (Ra) containing a blood vessel (B) from the ultrasonic image (U), a structure detection section (72) that detects a structure other than the blood vessel (B) from the ultrasonic image (U), and an artery and vein determination section (73) that determines which of an artery and a vein the blood vessel (B) contained in the blood vessel region (Ra) is based on the relative positional relationship between the blood vessel region (Ra) and the structure.

The invention provides a mobile cultural relic high-definition nondestructive detection vehicle, which relates to the technical field of cultural relic detection, and comprises a detection vehicle with a carriage and a cultural relic nondestructive detection mechanism arranged in the carriage, the cultural relic nondestructive testing mechanism comprises a rotating assembly mounted in the carriage, an ultrasonic testing head arranged in the carriage, a control assembly for controlling the ultrasonic testing head to detect a cultural relic body, and a floating compensation assembly for mounting the ultrasonic testing head on the control assembly. According to the invention, the dynamic fitting of the ultrasonic detection head to the irregular curved surface of the cultural relic is realized, the vertical incidence of ultrasonic sound beams is ensured, the signal interference is reduced, and the accuracy and reliability of cultural relic detection data are improved.

The array-type scanning acoustic tomograph includes a selection unit to select the elements constituting a vibrator group that connects vibrator drive signals and reception signals. The vibrator group is divided into a first group that emits ultrasonic beams to a former half of an ultrasonic beam irradiation region and a second group that emits ultrasonic beams to a latter half of the ultrasonic beam irradiation region. The selection unit is instructed to select the vibrator groups of the first group to emit ultrasonic beams, instructed to select the vibrator group of the second group to emit ultrasonic beams, then the selection unit is instructed to select the vibrator groups of the first group to receive reflected ultrasonic waves, and then instructed to select the vibrator group of the second group to receive reflected ultrasonic wave, and the same waveforms are displayed on a display unit without overlapping.