15 results about "Ultrasonic radiation" patented technology

This invention relates to the field of quartz sand purification technology and discloses an energy-saving and environmentally friendly quartz acid washing and purification device, comprising: an acid washing tower, an annular nozzle assembly, multiple directional ultrasonic transducers, and a solid-liquid separation component. An acid washing space is formed within the acid washing tower; a feed channel is provided at the top of the acid washing tower, connecting the external environment and the acid washing space; the annular nozzle assembly includes a liquid delivery ring and multiple nozzles; the liquid delivery ring is located in the acid washing tower and extends circumferentially along the tower; directional ultrasonic transducers are installed on the liquid delivery ring, with their ultrasonic radiation direction facing the axis of the acid washing tower; the multiple nozzles and multiple directional ultrasonic transducers are distributed at intervals along the circumference of the liquid delivery ring; the solid-liquid separation component includes a conveying mechanism, a collection tank, and a storage tank; the conveying mechanism is connected to the bottom of the acid washing tower via a discharge pipe; the storage tank is connected to the conveying end of the conveying mechanism. This achieves continuous acid washing.

The utility model discloses a kind of mixed reaction devices for preparing deodorization sterilization hydrogel, comprising: reaction kettle main body lower part is provided with hemispherical bottom, hemispherical bottom is provided with base below, hemispherical bottom is provided with discharge gate on;Cover is connected with the top of reaction kettle, for the top of reaction kettle is sealed, cover is provided with at least one inlet, the center of cover is provided with motor installation entrance;Ultrasonic radiation rod array includes first carrying mechanism, first carrying mechanism is provided with multiple first mounting hole in array, ultrasonic radiation rod is installed in first mounting hole, ultrasonic radiation rod is used to stir mixing by ultrasonic vibration to material, ultrasonic radiation rod array also includes first motor, first motor is connected with first carrying mechanism by transmission by motor installation entrance.The utility model avoids that traditional stirring generates mechanical shear force to cause damage to additive, and make material mixing more uniform, improve product quality.

This invention discloses a device for the synergistic pretreatment of algal cells by ultrasound and chlorination to inactivate them. The device includes a mixing reaction tank with an inlet pipe at one end, a chlorination oxidant dosing point connected to the inlet pipe, and an outlet pipe at the other end. It also includes an ultrasonic radiation device comprising a sound signal generator and a probe transducer electrically connected. The probe transducers are evenly arranged at the bottom of the reaction tank along the water flow direction and facing upwards; or the probe transducers are arranged on both sides of the mixing reaction tank walls, positioned below the liquid surface and facing the center of the water flow cross-section. This invention utilizes the synergistic effect of ultrasound and chlorination to effectively reduce chlorine dosage, increase algae removal rate, reduce water treatment costs, and improve the efficiency of subsequent processes, resulting in significant energy saving and emission reduction effects.

The application discloses a conveying and discharging regularity device in cigarette case gold stamping production, which comprises a conveying device for posture regularity and stable conveying of cigarette case paperboard and a collecting device for automatic discharging regularity of the cigarette case paperboard, the output end of the conveying device is fixedly connected with the input end of the collecting device, the conveying device realizes accurate posture regularity of the cigarette case paperboard through cooperation of a fluctuating air cushion, a stepped flow guide and ultrasonic radiation pressure, the collecting device realizes automatic discharging regularity through gravity self-adaptive driving side regularity, and the cigarette case paperboard after gold stamping is regularly conveyed by the conveying device and then enters the collecting device to be automatically regularly collected, the application can accurately correct the conveying posture of the cigarette case paperboard and ensure that the cigarette case paperboard is always stably conveyed along a preset track, thereby laying a solid foundation for regularity of subsequent discharging and collecting.

The invention discloses application of a conjugate with an ultrasonic radiation response group, and belongs to the technical field of medicinal chemistry. The conjugate has a structure as shown in a formula I: PG-L-D, and is applied to preparation of ultrasonic responsive drugs or imaging agents. The embodiment of the invention can be used for preparing a medicine or an imaging agent with the general formula based on the chemical characteristics of a specific ultrasonic response group PG. PG is an ultrasonic radiation response group; l is a linking group; d is a residue of a masked active molecule. According to the embodiment of the invention, hydrogen free radicals generated by an ultrasonic cavitation effect are directly utilized to induce free radical cracking reduction of PG groups, so that chemical bonds are broken, and masked active molecules are released. According to the scheme, a specific PG group is introduced, dependence on a complex biological endogenous reducing agent is avoided, the advantages of deep tissue penetration, high biological safety and non-invasiveness of ultrasonic waves are fully utilized, and a new means is provided for realizing space-time controllable release of drugs in focus parts such as tumors and inflammations.

A method for determining intracranial pressure of a patient includes ultrasound imaging of a central retinal vein supplying a retina of an eye of the patient, for generating ultrasound images, exerting a varying external pressure on the eye, identifying a collapse and / or an occlusion of the central retinal vein based on the images, correlating a value of the external pressure to the collapse and / or occlusion, and determining the intracranial pressure based on the correlated external pressure value. A device includes an ultrasonic transducer, a pressure sensor and a housing with a face for contacting an eye lid and / or eye ball to exert pressure on the eye, wherein ultrasonic radiation from and to the transducer is transmitted through the face. The device includes an analyzer to process the ultrasound images and the values of the external pressure and to determine the intracranial pressure based on the correlated external pressure value.

The invention discloses a non-equal-diameter cavity membrane structure back cavity emission type piezoelectric miniature ultrasonic transducer and a manufacturing method, and belongs to the field of miniature ultrasonic transducers, the non-equal-diameter cavity membrane structure back cavity emission type piezoelectric miniature ultrasonic transducer comprises a substrate, the substrate is provided with a back cavity and a vibrating diaphragm with a single end shielding the back cavity, an air cavity is arranged between the substrate and the vibrating diaphragm, and the air cavity is communicated with the back cavity; the radial profile of the air cavity is larger than that of the back cavity, and the back cavity is within the axial projection range of the air cavity. According to the invention, better comprehensive balance can be obtained between sensitivity and sound pressure, the edge displacement of a high-order mode is suppressed, the vibration boundary stability is improved, the sound energy coupling efficiency of a main mode is improved, the unimodal characteristic and the signal purity of a transmitted waveform are improved, the effective sound radiation area of a back cavity and the rigidity of the air spring can be flexibly adjusted, and the reliability is high. And the far-field sound pressure can be improved, the ultrasonic radiation capability of the transducer can be enhanced, the realizable working bandwidth can be expanded, the process tolerance can be improved, and the device is insensitive to the deviation of the back etching diameter, so that the consistency and reliability of the device are improved.

The invention provides a sound system and an in-vehicle communication support system, which can suppress the disadvantage of ultrasonic radiation through a parametric speaker and increase the reproduction level of audible sound. Ultrasonic waves, which have been amplitude-modulated with audible sound emitted from a parametric speaker (1), are incident on an audible sound collector (2) with high directivity. The audible sound collector (2) attenuates incident ultrasonic waves and ultrasonic waves in audible sound self-demodulated from the ultrasonic waves, reflects the audible sound, and collects sound at a position in the vicinity of a user. The audible sound collector (2) can be configured from a reflector (21) having a reflecting surface that is a paraboloid of revolution and a sound absorber (22) that absorbs sound of ultrasonic waves, and the sound absorber (22) can be configured using an inverter tube (221) and a sound absorbing material using a photonic crystal.

The invention discloses a particle size controllable micro-nano bubble generation device and a regulation and control method. The micro-nano bubble generation device comprises an initial bubble generation assembly and a bubble refining and dispersing assembly. The initial bubble generation assembly comprises a gas cylinder (1), a liquid tank (2), a gas-liquid mixing valve (3), a bubble generation core unit (4) and a bubble homogenizing mixer (5); the bubble refining and dispersing assembly comprises an electric telescopic table (6), an ultrasonic signal generator (7), a signal amplifier (8), an ultrasonic generating probe (9) and a water storage tank (10) used for containing a micro-nano bubble dispersing system. Initial micro-nano bubbles are generated by utilizing a bubble generation core unit (4), then primary bubbles are generated under the action of sound field standing waves on the basis of a Helmholtz resonance effect through an ultrasonic radiation generation probe (9) arranged above a gas-liquid interface, and the primary bubbles are broken into sub-bubbles with smaller particle sizes through an acoustic rupture mechanism. Therefore, accurate control of bubble particle size is realized.

A high-intensity focused ultrasound generation device includes an integrated electrode including a ultrasound radiation frame, a transducer holder, and a transducer to allow electromagnetic interference (EMI) noise having focused only on the transducer to flow into the ultrasound radiation frame so as to minimize noise and thus is advantageous in that a signal loss due to the noise is prevented and an RF signal may be more stably applied. Furthermore, the ultrasound radiation frame, the transducer holder, and the transducer are included in the integrated electrode and thus a negative electrode of a power supplier may be connected to a negative electrode of a singular transducer or the ultrasound radiation frame so that a circuit structure may be very simple compared to a structure connected to each of a plurality of transducers.

The invention relates to activation conversion of air and phenol, in particular to a method for directly preparing nitrophenol through plasma coupling ultrasonic catalytic conversion of air and phenol. A low-temperature plasma coupling ultrasonic reaction device is utilized, air is introduced into a plasma end, sine alternating current is applied, low-temperature air plasma is excited between a dielectric tube and an inner electrode, meanwhile, the plasma end is connected with an ultrasonic liquid phase end, and ultrasonic vibration is applied in an ultrasonic dielectric cavity; the air plasma is introduced into the phenol solution to which ultrasonic radiation is applied, so that nitrophenol is directly prepared from air and phenol. According to the method for directly preparing the nitrophenol by directly converting the air and the phenol through coupling of the low-temperature plasma and the ultrasonic waves, the high nitrophenol yield and selectivity can be obtained at the room temperature and the normal pressure, and the method has the good industrial application prospect.

A vehicle occupant care apparatus and method. The vehicle occupant care apparatus includes: a communication unit configured to collect driving information of a vehicle; a camera configured to photograph a vehicle occupant and generate image data; a first processing unit configured to determine a face position of an occupant using the image data, a second processing unit configured to output a first ultrasonic radiation signal when the vehicle is stopped and output a second ultrasonic radiation signal when the vehicle is traveling according to the traveling information, and an ultrasonic radiation unit configured to emit the first ultrasonic radiation signal and the second ultrasonic radiation signal when the vehicle is traveling according to the traveling information. And an ultrasonic transducer fixed to the interior of the vehicle and configured to output ultrasonic waves to a facial position of the occupant according to the first ultrasonic radiation signal or the second ultrasonic radiation signal.

This utility model relates to the food industry, specifically to methods for processing secondary plant materials, and can be used to obtain extracts from sea buckthorn (Hippophae rhamnoides) cake. The technical result consists of producing a sea buckthorn cake extract with high antioxidant and antitumor activity by increasing the efficiency of extracting biologically active substances. The specified result is achieved by the fact that the method for obtaining the extract includes preliminary drying of the cake at a temperature of (50 ± 2) °C for 18 hours, grinding it to a particle size of (3 ± 0.5) μm, extraction with food ethyl alcohol with a concentration of 50–90% at a temperature of (60 ± 2) °C for 30 minutes using ultrasonic radiation with a frequency of 35 kHz at a ratio of raw materials and extractant of 1:5–1:15, subsequent centrifugation, filtration, concentration and vacuum drying at a temperature of (60 ± 2)°C until a dry extract is obtained.

This invention discloses a silicon wafer cleaning structure, a semiconductor cleaning apparatus, and a cleaning method, relating to the field of semiconductor cleaning and processing technology. The silicon wafer cleaning structure achieves initial static equilibrium through two discrete support points provided by a first support component. The second support component, with its high and low side supports, provides space for the silicon wafer's slight displacement under subsequent flow field action. During the cleaning process, when the resultant force of the ultrasonic radiation pressure in the vertical direction briefly exceeds the silicon wafer's weight, the wafer overcomes its own weight and instantaneously separates from the two first supports, exposing the previously shielded bottom support area to the cleaning fluid, eliminating cleaning blind spots. Simultaneously, the high side support, through its higher spatial position and preset tilt angle, uses lateral force and downward positive pressure to lock the silicon wafer's upward or lateral instability, preventing collisions or edge chipping due to disordered drift, thus improving the cleaning effect and ensuring the quality of the silicon wafer.