981 results about "Ultrasonic device" patented technology

The invention belongs to the technical field of acoustic devices and ultrasound, and discloses an ultrasonic transducer, a multi-layer gradient acoustic impedance matching layer and a preparation method of the multi-layer gradient acoustic impedance matching layer, and the multi-layer gradient acoustic impedance matching layer comprises a plurality of acoustic impedance layers which are arranged in sequence and have different acoustic impedances; in the direction from the first acoustic impedance layer to the last acoustic impedance layer, the acoustic impedance of the acoustic impedance layer is in a decreasing trend; the surface of the previous acoustic impedance layer is provided with a micro-columnar structure, the micro-columnar structure extends into the next acoustic impedance layer, a mechanical interlocking interface is formed between the previous acoustic impedance layer and the next acoustic impedance layer through the micro-columnar structure, and the micro-columnar structure is gradually thinned from the bottom to the tip. According to the invention, the gradient impedance design of the acoustic impedance layers significantly reduces the acoustic reflection between the acoustic impedance layers, improves the acoustic energy transmission efficiency, and widens the working bandwidth of the ultrasonic device; the micro-columnar structure not only maintains the stability of interlayer adhesion in a high vibration or thermal stress environment, but also further smooths gradient transition and reduces interface reflection.

The invention provides an intermittent ultrasonic enhanced micro-nano bubble fruit and vegetable cleaning and disinfecting method, which comprises the following steps: introducing an active oxygen solution and gas into a micro-nano bubble generator, and placing a water inlet and a water outlet of the micro-nano bubble generator in the same cleaning pool; placing fruits and vegetables to be treated in the cleaning pool, starting the micro-nano bubble generator, and applying intermittent periodic ultrasonic treatment to the cleaning pool by using an ultrasonic device so as to clean and disinfect the fruits and vegetables to be treated. According to the method, micro-nano bubbles, ultrasound and active oxygen are combined, the method can be efficiently used for sterilizing the surfaces of fruits and vegetables, and the sterilizing effect on natural flora on the surfaces of the fruits and vegetables can reach 99.99%. Meanwhile, the combination of the three can also significantly inhibit browning of the fruits and vegetables, and has no negative influence on the quality (such as hardness and chromaticity) and nutritional ingredients of the fruits and vegetables.

The invention provides an ultrasonic driving circuit, an ultrasonic radar and a vehicle, and relates to the technical field of ultrasonic devices. The capacitor is connected with the power supply module, and the capacitor is also used for being connected with the ultrasonic transducer; the power supply module is used for charging the capacitor; the capacitor is used for providing a positive pressure driving signal and / or a negative pressure driving signal for the ultrasonic transducer; wherein the detection ranges of ultrasonic waves emitted by the ultrasonic transducer driven by the positive pressure driving signal and the negative pressure driving signal are different. According to the invention, the detection distance of the ultrasonic wave emitted by the ultrasonic transducer can be increased, and the integration area of the whole ultrasonic drive circuit is not increased.

The invention provides a bolt monitoring method and device based on electromagnetic ultrasound and a 3D phased array, and relates to the technical field of bolt monitoring. A two-stage detection process is adopted, firstly, preliminary screening is conducted through electromagnetic ultrasound, an electromagnetic ultrasound device excites ultrasonic waves and receives echo signals, and according to the relation between the intensity of the echo signals and the passing time, a 3D phased array is obtained; constructing a time-intensity curve of each detection section, and rapidly screening candidate sections with abnormal echo signals; the method comprises the following steps: performing comprehensive three-dimensional space scanning on a candidate section through a 3D phased array technology, performing accurate scanning in a three-dimensional space through focused ultrasonic waves to obtain an ultrasonic echo signal of each space point, extracting the ultrasonic echo signal intensity of each space point and calculating a standardized deviation to mark an abnormal point exceeding a set threshold value, and finally marking the abnormal point. And through spatial aggregation analysis, a plurality of abnormal points are aggregated into an abnormal region, so that the defect positioning precision is further improved.

Cleaning equipment of a roller cleaner comprises a cleaning box, the cleaning box is provided with a cleaning tank and a precipitation tank which are arranged side by side and separated from each other, and an ultrasonic device is arranged at the bottom of the cleaning tank; end spaces are arranged at the two ends of the cleaning tank and the two ends of the precipitation tank, and bearing seat supports are arranged in the end spaces. A driving system is further arranged in the end space located at one end of the cleaning tank and used for driving the roller cleaner to rotate in the ultrasonic cleaning process. The two bearing seats are used for rotatably supporting the roller cleaning device, and the roller cleaning device is placed on the bearing seat supports at the two ends of the cleaning tank or the two ends of the precipitation tank through the bearing seats at the two ends. The cleaning time of the roller cleaner is greatly shortened, cleaning dead angles are eliminated, and the cleaning effect is improved.

According to the invention, the ultrasonic device for skin treatment comprises an external part which is composed of a device body, the middle part of the device body is provided with an indicating lamp for indicating the operation state of the device, a switch for turning on and turning off the device and a mechanism part, and the mechanism part is composed of energy connected to a circuit control panel. The circuit control panel comprises a short circuit detection circuit, a Bluetooth and / or Wi-Fi receiver and transmitter and a skin temperature monitoring circuit. The circuit control panel transmits current to the electromagnetic electrode and the electrical stimulation muscle electrode ultrasonic transducer, and the ultrasonic transducer is composed of a deeper-focal-length ultrasonic transducer and a shallow-focal-length ultrasonic transducer. Two transducers, each consisting of electrodes, are connected to a piezoelectric material for transmitting electrical energy to the piezoelectric material, and a solid or semi-solid material that can transmit ultrasonic waves for strengthening the ultrasonic waves to a desired skin layer.

The utility model discloses a wafer processing device, and belongs to the technical field of semiconductors. The wafer processing device comprises a carrying table, a shock insulation pad and an ultrasonic device, wherein the carrying table is used for carrying a crystal ingot with a modified layer; the ultrasonic device is arranged above the carrying table, the ultrasonic device can generate transverse vibration waves, and the transverse vibration waves are used for vibrating along the crystal ingot and enabling cracks of the modified layer to extend in the transverse direction; and the bottom of the carrying table is fixedly arranged on the shock insulation pad. According to the utility model, the cracks of the modified layer formed on the crystal ingot by the laser pulse grow and are connected along the transverse direction, the longitudinal growth of the cracks is avoided, the production efficiency of the modified layer is improved, the laser pulse does not need to be intensively emitted, and the wafer processing period is shortened.

According to the anti-blocking adsorption laser operation endoscope and the method, the anti-blocking adsorption laser operation endoscope is installed at the position far away from an endoscope body and an adsorption opening through an adsorption switch, or the adsorption opening is a plane or a curved surface and comprises a structure of at least two open holes and matched size design. Or an ultrasonic device and an installation mode of the ultrasonic device are adopted, so that the probability that the broken stones block the suction channel is greatly reduced, and blockage is prevented, and meanwhile, the stones are continuously reset at the position of the suction port through a method that the suction switch repeatedly and continuously connects and disconnects the suction port and the suction source; therefore, the continuous laser lithotripsy performance during the operation is kept; through the program control of the suction switch of the anti-blocking adsorption laser operation endoscope, the working intensity of an operation doctor during the operation for controlling an instrument is reduced, so that the operation is more convenient and simpler; through the design of the quick-connection type connector of the anti-blocking broken stone adsorption laser operation endoscope component, instrument sterilization is more convenient, function expansion is more flexible, or independent production is arranged; the invention relates to a method for treating human and animal focuses, especially calculi, by using an anti-clogging laser surgery endoscope catheter.

The embodiment of the invention provides an air purifier, a filter screen cleaning method of the air purifier and a medium. The air purifier comprises a filter screen. The first scraping and sweeping device is arranged on the outer side of the filter screen and used for scraping and sweeping the outer side of the filter screen; the ultrasonic device is used for emitting ultrasonic waves to the filter screen, so that the filter screen generates ultrasonic vibration; the second scraping and sweeping device is arranged on the inner side of the filter screen and used for scraping and sweeping the inner side of the filter screen; the dust suction device is used for sucking dust falling from the filter screen; the water spraying device is used for spraying water vapor to the filter screen; and the drying device is used for drying the filter screen after the water spraying device sprays the water vapor to the filter screen. Bidirectional physical cleaning is formed through the first scraping and sweeping device on the outer side and the second scraping and sweeping device on the inner side, dust in the deep layer of the filter screen is loosened and falls off in combination with ultrasonic vibration, the cleaning efficiency is remarkably improved, drying is conducted through the drying device, microorganisms are prevented from breeding in the humid environment, meanwhile, the filtering efficiency of the filter screen is prevented from being affected, and the service life of the filter screen is prolonged.

The invention relates to the field of PCB (printed circuit board) printing, in particular to a high-precision multi-layer lamination and alignment PCB printing process which comprises a substrate pretreatment stage, a substrate preassembly stage, a dynamic lamination stage and a finished product output stage, the dynamic lamination stage comprises preheating treatment and resonance impurity removal treatment, and the lamination stage is divided into multi-stage lamination. And air bubbles and resin between the laminated bodies are optimized in the second pressing stage. According to the method, the inner-layer core plate and the copper foil are pretreated, so that positioning of the multi-layer core plate is more accurate and detection is facilitated, meanwhile, nanoscale micropores are formed in the copper foil through a laser technology to improve the flowing property of subsequent resin, and in the pressing process, pre-pressing and multi-stage pressing are set to improve the pressing accuracy; and in the second-stage pressing process, the dispersion direction of internal bubbles and the flowing direction of resin are improved through an ultrasonic device, a radiation heating device, a magnetic field assisting device and the like, the alignment accuracy and the pressing precision of the plate are further improved, and the machining efficiency is guaranteed.

The present invention discloses a technology for measuring brain function suitable for an infant or a moving subject who cannot be controlled easily during measurement. One embodiment of the present disclosure pertains to an ultrasound device that comprises: multiple ultrasound probes that receive / transmit ultrasound signals from / to multiple brain areas via multiple head regions and are disposed corresponding to the respective head regions; a control unit that controls the respective ultrasound probes; and an image processing unit that generates brain function network information calculated from blood flow states among the respective brain areas based on measurement results acquired from the respective ultrasound probes.

The invention discloses a light and thin wearable ultrasonic device with imaging and efficient power output capabilities and a working method of the light and thin wearable ultrasonic device, and aims to solve the problems that an existing wearable ultrasonic device is large in thickness, low in imaging sensitivity and power output efficiency and serious in heating, and imaging and power output areas do not coincide. The device comprises a front-end package, an ultrasonic transducer array and a rear-end package. The front-end package is made of a flexible material and is in contact with an organism to conduct ultrasonic waves; the ultrasonic transducer array comprises an ultrasonic transducer array element with an impedance reverse matching structure, has the characteristics of being light and thin, and has imaging and efficient power output capabilities at the same time; the rear end package is used for protecting the device and providing an insulation function. According to the device, high coincidence of an imaging area and a power output area is realized by sharing the piezoelectric layer, and power output can be accurately controlled based on a real-time imaging result in combination with a closed-loop control strategy.

The invention relates to the technical field of pipeline decontamination, in particular to an online pipeline ultrasonic decontamination device and method suitable for various pipe diameters, and the online pipeline ultrasonic decontamination device comprises a numerical control generator, a transducer, an amplitude-change pole, an adaptive clamp, an online monitoring device and other key components. And through the designed adaptive clamp, the device can act on pipelines with various pipe diameters and can move along the pipelines, and the decontamination requirements in different scenes are met. The online ultrasonic decontamination device is suitable for maintenance and cleaning work of pipelines with different pipe diameters in nuclear power facilities, and has important significance in improving the safety of the nuclear facilities and guaranteeing radiation protection for operators. The problem that an ultrasonic device is poor in applicability is effectively solved, meanwhile, the flexibility of the device is guaranteed, effective online decontamination of pipelines with various pipe diameters can be achieved through a single set of device, the decontamination cost of radioactive contamination of nuclear facility pipelines is effectively reduced, online efficient decontamination of radioactive contamination deposited in the pipelines is achieved, and the service life of the pipelines is prolonged. The safe and stable operation of the reactor is ensured, and the radiation risk of operators is reduced.

The invention relates to an injection device and method for particles, and the device comprises a liquid environment which is used for placing a carrier, and the particles are attached to the carrier; the special ultrasonic device is located in a liquid environment so as to generate a sound beam current in the liquid environment; the liquid supply flow channel is used for conveying an injection substance into a sound beam of the special ultrasonic device; the special ultrasonic device and the particles can be in a relatively fixed state, and the particles are located in an operable range of a sound beam of the special ultrasonic device, so that the injection substance is injected into the particles through the sound beam. According to the invention, injection aiming at single cells is realized, and particularly quantitative injection can be realized based on pulse type sound beam current.

The invention provides a liquid drop continuous generation device which comprises a first flow channel and a second flow channel, the first flow channel and the second flow channel comprise first positions which are tightly attached to each other, and each first position comprises a through hole communicating with the first flow channel and the second flow channel; the first flow channel and the second flow channel are used for introducing a first liquid and a second liquid respectively; the special ultrasonic device can act on the first liquid in the first flow channel, when the special ultrasonic device is driven in a first power period, an acoustic beam current facing the through hole is generated in the first liquid, the acoustic beam current enters the second liquid through the through hole, and liquid drops formed by the first liquid are formed in the second liquid. The invention also correspondingly provides a method for continuously generating liquid drops. The liquid drop generation mode is more flexible, the controllability is higher, and the cost is lower.

The invention is suitable for the technical field of silkworm cocoon shell oxidation resistance detection, and provides a silkworm cocoon shell ABTS free radical scavenging capability detection method, which is based on an ABTS free radical scavenging method, and comprises a multi-frequency ultrasonic device, the multi-frequency ultrasonic device performs three-stage gradient frequency ultrasonic treatment on silkworm cocoon shells, and the silkworm cocoon shells are subjected to three-stage gradient frequency ultrasonic treatment on the silkworm cocoon shells. The internal structure of the silkworm cocoon shell is converted into an aperture fiber structure from a compact fiber structure; the aperture fiber structure of the silkworm cocoon shell is in contact with the oxidant solution for mass transfer to form a reaction solution; the reaction liquid is placed in a quartz cuvette, and an ultrasonic transduction head and a temperature control module are arranged in the quartz cuvette; when the silkworm cocoon shell ABTS free radical scavenging capacity is detected, the quartz cuvette is placed in a spectrophotometer, and the silkworm cocoon shell ABTS free radical scavenging rate is obtained through the spectrophotometer.

The invention discloses a wafer cleaning device based on ultrasonic cleaning, and relates to the technical field of wafer cleaning devices. Comprising a cleaning machine outer tank body, a wafer cleaning glass tank, an ultrasonic cleaning tank, an ultrasonic device, a bottom plate, a housing, a cleaning tank rail, a flow dividing water supply device and a bubble removing uniform vibration device, ultrapure water serves as a medium, ultrasonic vibration is effectively conducted to the wafer cleaning glass tank, a strong acid solution in the tank is driven to uniformly vibrate, and efficient cleaning of wafers is achieved. High turbulence pulsation and local shearing stress are formed at the junction of oblique water replenishing and the stock solution, large bubbles are sheared into small bubbles, bubble gathering is prevented, and the liquid purity and the ultrasonic cleaning efficiency are improved. Under the centrifugal separation action of the rotational flow connecting base and the annular rotational flow piece, bubbles in water flow are concentrated in the center position, ultrapure water on the outer side is rapidly discharged, the bubbles are efficiently absorbed after making contact with the hydrophobic porous membrane, and the bubble removing effect is remarkably improved.

The invention provides an oily sewage treatment system and a treatment method thereof, and belongs to the technical field of sewage treatment. The system comprises: a sedimentation tank; a V-shaped oil separation tank; the ejector is used for ejecting the oily sewage settled by the settling tank into the V-shaped oil separation tank after passing through the ultrasonic device; the oil outlet pipe is used for discharging the floating oil into the heat exchanger for heat exchange; the vacuum separator is communicated with the heat exchanger; an oil tank; the water outlet pipe is used for discharging water into the activated carbon adsorption chamber; the VOC treatment tank is communicated with the activated carbon adsorption chamber and is used for receiving oil-containing waste gas generated in the regeneration process of the activated carbon adsorption chamber; the VOC treatment tank is provided with an adsorption chamber and a condensation chamber, and the VOC treatment tank is respectively connected with the heat exchanger through a compressor and an expansion valve to form a heat pump system. A gravity separation method and an air flotation method are combined, and meanwhile, an ultrasonic demulsification technology is used, so that the oil removal efficiency is improved. The energy consumption in the treatment process is reduced, and the resource utilization efficiency is further improved.

The invention relates to a bimodal diagnostic probe (1) used to examine biological tissues, said probe (1) comprising: - A body (12) having an elongated shape along a longitudinal axis (X), - The body having a distal part (11) intended to come as close as possible to the tissues to be examined, - At least one ultrasonic device (4) comprising an array of ultrasonic transducers (40), said array of ultrasonic transducers (40) being controlled to emit ultrasonic signals towards the tissues to be examined and to convert the reflected ultrasonic signals into electrical signals, - At least one optical device (3) comprising a light source, said at least one light source being controlled to emit a light beam (30) towards the tissues to be examined, the optical device also comprising at least one sensor for capturing the light signals scattered by the tissues.

The invention discloses a process for preparing a single-walled carbon nanotube and graphene by stripping a multi-walled carbon nanotube, which is characterized in that a supercritical CO2 fluid circulating system, ultrasonic equipment, a stirrer, an external heating jacket and a slit shearing circulating system are arranged on a coupling reaction kettle in a matched manner; the method comprises the following steps: filling a mixed solution formed by a multi-walled carbon nanotube and an organic solvent into a coupling reaction kettle, closing a feeding valve, starting a stirrer and ultrasonic equipment, and heating; the supercritical CO2 fluid is input until the pressure reaches 30-35 MPa; starting a slit shearing circulating system to perform circulating shearing; recovering CO2 after more than 80% of the multi-walled carbon nanotubes are stripped; and respectively unloading to finish the stripping process. According to the method, mature and low-cost multi-walled carbon nanotubes are used as raw materials, the single-walled carbon nanotubes and graphene are prepared by stripping the multi-walled carbon nanotubes through ultrasonic waves and slit shearing coupled supercritical CO2 fluid, the technological process is short, the production efficiency is high, the product increment is large, and the economic benefit is remarkable.

Some disclosed blood pressure estimation methods involve controlling, by a control system, an ultrasonic sensor system to transmit ultrasonic waves to a target object on an outer surface of an apparatus, the ultrasonic sensor system having M ultrasonic receiver elements in a single array. Some such methods involve receiving, by the control system from the ultrasonic sensor system, ultrasonic receiver signals from each of a plurality of the M ultrasonic receiver elements in the single array, the ultrasonic receiver signals corresponding to ultrasonic waves reflected from the target object. Some such methods involve detecting, by the control system, an artery within the target object based on the ultrasonic receiver signals. Some such methods involve estimating, by the control system, a blood pressure within the artery based on the ultrasonic receiver signals.

The invention belongs to the technical field of efficient heat management, and relates to a nanofluid enhanced heat exchange system based on a built-in ultrasonic device, which comprises an integrated micro-channel cooling plate 2, an embedded ultrasonic device 3, a nanofluid circulating system and an intelligent control system 5, the integrated micro-channel cooling plate 2 is attached to the surface of a heating device 1 (such as a solar cell panel), and the embedded ultrasonic device 3 is attached to the surface of the heating device 1. A groove is formed in the side, away from the heating device 1, of the integrated micro-channel cooling plate 2, the embedded ultrasonic device 3 is installed in the groove, and the nano-fluid circulating system and the embedded ultrasonic device 3 are in electric signal connection with the intelligent control system. The invention can effectively solve the industrial problems of high-temperature efficiency reduction, nanofluid agglomeration instability and the like of the solar cell panel, improve the heat dissipation efficiency and improve the conversion efficiency of the cell panel.

The invention provides an ultrasonic positioning method and electronic equipment, and relates to the technical field of ultrasonic localization, and the method comprises the steps: installing an ultrasonic device on a to-be-positioned object, and arranging a plurality of radio devices in a working space of the to-be-positioned object; obtaining an ultrasonic time difference corresponding to each radio device; and determining the position of the to-be-positioned object based on each ultrasonic time difference and the sound velocity of the ultrasonic signal. According to the invention, the plurality of sound receiving devices are arranged in the working space, and the ultrasonic time difference corresponding to each sound receiving device is obtained according to the fact that the time when the ultrasonic device sends the ultrasonic signal to each sound receiving device is different; therefore, by comprehensively analyzing the sound velocity of the ultrasonic signal and the ultrasonic time difference corresponding to each radio device, the influence of a multipath effect during positioning is avoided, and the positioning precision is improved.

The invention discloses a transuterine ultrasonic guided puncture biopsy device, which belongs to the technical field of medical instruments and comprises an ultrasonic probe and a power component, two ends of the power component are respectively connected with a puncture channel and a handle, and the other end of the puncture channel is rotatably connected with one end of a rotary cutting head. One end of the rotary cutting head is connected with a handle, the other end of the rotary cutting head is connected with a telescopic puncture needle, the handle is provided with a puncture needle reset button, a puncture needle exit button and a rotary cutting button, and the puncture needle reset button and the puncture needle exit button are connected with the puncture needle. The puncture needle can be accurately guided to target tissue, puncture accuracy is improved, puncture failure and mistaken puncture risks are reduced, various functional buttons are arranged on the handle, medical staff can easily perform various operations, operation difficulty is reduced, working efficiency is improved, and the puncture needle can be matched with various ultrasonic devices and is convenient to use. And the method has good compatibility.

The invention provides a flow-type detection chip, comprising: a flow channel in which a fluid injected contains particles; the special ultrasonic device is arranged at the bottom of the flow channel and is used for generating an acoustic fluid effect transmitted to fluid in the flow channel in the flow channel, so that particles in the fluid are captured to an acoustic fluid tunnel corresponding to the outline of the special ultrasonic device and move to a position corresponding to the tail end of the outline of the special ultrasonic device along the acoustic fluid tunnel to be released; the height of the captured particles in the flow channel when the particles are released is closer to the bottom of the flow channel where the special ultrasonic device is located than the height of the particles in the flow channel before the particles are captured; and the detection device comprises a detection part, and the detection part is arranged at the position of the flow channel at the downstream of the tail end of the special ultrasonic device and is used for detecting the detected parameter change when the released particles pass through the detection area corresponding to the detection part. The invention further provides a corresponding special ultrasonic device and a flow type detection method. The invention provides a microfluidic scheme which is low in cost and high in precision and can be used for flow detection.

The application discloses a wafer cleaning device based on ultrasonic cleaning and relates to the technical field of wafer cleaning devices. The wafer cleaning device comprises a cleaning machine outer tank body, a wafer cleaning glass tank, an ultrasonic cleaning tank, an ultrasonic device, a bottom plate, a cover, a cleaning tank track, a shunt water supply device and a bubble removing uniform vibration device. The application effectively conducts ultrasonic vibration to the wafer cleaning glass tank by taking ultrapure water as a medium, drives the strong acid solution in the tank to uniformly vibrate and realizes efficient cleaning of the wafer. The oblique water replenishment forms high turbulent pulsation and local shear stress at the junction with the original liquid, shears large bubbles into tiny bubbles, prevents bubble aggregation, improves liquid purity and ultrasonic cleaning efficiency. The centrifugal separation effect of the cyclone connecting seat and the annular cyclone sheet makes the bubbles in the water flow concentrate at the center position, the outer ultrapure water is quickly discharged, the bubbles are efficiently absorbed after contacting the hydrophobic porous membrane, and the bubble removing effect is significantly improved.

The invention discloses a method for predicting intramuscular fat of a living body, a processing device and a computer readable storage medium. The method comprises the following steps: acquiring a target image of the living body by utilizing ultrasonic equipment; inputting the target image into a first model to determine the quality of the target image; and if the quality of the target image is qualified, inputting the target image into a second model to predict the intramuscular fat content of the living body. Through the scheme, accurate prediction of intramuscular fat of a living body can be realized.

The invention relates to a cleaning method and device for a quartz furnace tube in the CVD deposition process and the like. The method comprises the steps that the quartz furnace tube is placed into a cleaning tank and driven to roll through a roller assembly; sequentially spraying low-concentration acid liquor and high-concentration acid liquor to form deposited acid liquor which at least immerses part of the furnace tube, and starting the ultrasonic device to conduct pulse type ultrasonic waves after the deposited acid liquor reaches the standard; spraying low-concentration acid liquor; after operation is stopped, deposited acid liquor is filtered and recycled to a low-concentration area of the acid storage tank; and finally cleaning and air-drying. Through cooperation of gradient pickling and pulse type ultrasonic waves, surface layer loose sediments are efficiently dissolved through low-concentration acid liquor, deep layer stubborn sediments are subjected to ultrasonic activation and then fully react with high-concentration acid liquor, and finally a matrix is neutralized through the low-concentration acid liquor, so that the high sediment removal rate is guaranteed, furnace tube corrosion is avoided, the service life of the furnace tube is prolonged, and the service life of the furnace tube is prolonged. And meanwhile, resource waste and environmental protection pressure are reduced through acid liquor recycling.

Examples of apparatus, methods, and compositions for endodontic treatments are described. The apparatus can include a fluid platform configured to substantially retain fluid in a tooth chamber during treatment. The fluid platform can help maintain fluid circulation in the tooth chamber as fluid flows into and out of the tooth chamber. The apparatus can also include a pressure wave generator configured to generate acoustic waves that can be used for cleaning root canals and tooth surfaces in the tooth chamber. Examples of pressure wave generators include a liquid jet, an electromagnetic energy delivery device, and an ultrasonic device. The fluid can include antiseptic or antibacterial solutions to assist in tooth cleaning. The fluid may be degassed to have a reduced dissolved gas content (compared to non-degassed fluids used in endodontic treatments), which may improve the effectiveness of the pressure wave generation or the cleaning.

The invention relates to a particle control, sorting and detection device and method, and the device comprises a special ultrasonic device which comprises two side edges extending from a first end to a second end, and the two side edges are gradually shrunk along the extending direction and form an angle, so that the dragging force of acoustic fluid formed by the side edges is gradually reduced along the extending direction; a second side edge, close to the downstream side of the first flow channel, of the two side edges is inclined to the extending direction of the first flow channel; when the special ultrasonic device is in a working state, particles in the first flow channel are captured, the particles are made to move towards the second end along the acoustic fluid tunnel of the second side edge, and the particles are made to break away from the acoustic fluid tunnel of the second side edge at the position where the dragging force of the acoustic fluid is matched with the dragging force of the fluid in the first flow channel. The invention further provides a corresponding method. Multi-channel particle sorting can be achieved through one special ultrasonic device, the number of the special ultrasonic devices is reduced, and the micro-fluidic device is suitable for miniaturization of a micro-fluidic system.