260 results about "Liquid based" patented technology

The invention relates to a method for purifying a monomer bis (2-hydroxyethyl) terephthalate (BHET) obtained by depolymerizing waste polyester through ethylene glycol (EG), and belongs to the technical field of polyester recycling. The BHET microwave radiation induced film evaporation separation and molecular distillation refining continuous process provided by the invention solves the problems of long process flow, poor continuity, more side reactions and low purity and yield in the direct separation and refining process of BHET in alcoholysis liquid based on a gas-liquid equilibrium separation method at present. The whole technological parameter requirement is mild, the process is short, continuity is good, the BHET purity of the product is larger than or equal to 99.0 wt%, the hue is good, and the BHET yield is larger than or equal to 80.0%. And meanwhile, the method has the advantages that EG is conveniently recycled in a system, the production process is cleaner and more environment-friendly, and the comprehensive efficiency advantage is obvious.

The invention relates to the technical field of brake-by-wire, and provides a self-adaptive fluid infusion control method, device and equipment for a brake-by-wire system. The method comprises the steps that when a to-be-controlled vehicle enters a braking mode, the deceleration and the running speed of the to-be-controlled vehicle are obtained; according to the deceleration, the road surface type of the road surface where the to-be-controlled vehicle is located is recognized, and the road surface type is the type obtained by dividing the road surface based on the adhesion coefficient; and determining a liquid supplementing strategy according to the road surface type and the driving speed, and controlling the to-be-controlled vehicle to supplement liquid based on the liquid supplementing strategy. The method has the core advantages that the attachment type of the current road surface is recognized by obtaining the deceleration and the driving speed of the vehicle, and the optimal liquid supplementing strategy is selected accordingly. According to the method, the inherent defect that a traditional fixed parameter fluid infusion strategy is single in performance under different road conditions is overcome, and the performance optimal balance within the full working condition range is achieved. The intelligent self-adaptive mechanism greatly improves the comprehensive performance and the driving experience of the brake-by-wire system.

The present invention is a method for measuring the remaining amount of a liquid in a liquid storage container, the method comprising the steps of: discharging the liquid in the liquid storage container to the outside through a suction tube inserted into the liquid storage container; the size or number of bubbles contained in the liquid penetrating through the light-transmitting part is observed through a visual device pointing to the light-transmitting part of the suction pipe; and estimating the remaining amount of the liquid based on the observed size and number of bubbles. Further, the method includes a remaining amount estimation step using the return ultrasonic waves, and the remaining amount estimation step using the return ultrasonic waves includes the steps of: oscillating the ultrasonic waves from the ultrasonic generator into the interior of the liquid storage container; receiving the ultrasonic wave returned after oscillation and analyzing the waveform of the ultrasonic wave; and estimating the remaining amount of the liquid by comparing the waveform of the ultrasonic wave with previously provided reference data.

The invention provides a liquid identification method based on a security check X-ray machine multi-mode fusion image, and the method comprises the steps: scanning a container containing to-be-detected liquid, and obtaining a high-energy X-ray image, a low-energy X-ray image and a pseudo-color X-ray image; determining a first type of cross region corresponding to the container in the pseudo-color X-ray image; determining an effective atomic number image based on the high-energy X-ray image and the low-energy X-ray image; determining a second type of cross region in the high-energy X-ray image, a third type of cross region in the low-energy X-ray image and a fourth type of cross region in the effective atomic number image based on the first type of cross region; determining a multi-modal fusion image based on the second type of cross region, the third type of cross region and the fourth type of cross region; and identifying the liquid type of the to-be-detected liquid based on the multi-modal fusion image. The accuracy of the liquid type identification result can be improved.

A sensor cleaning apparatus detects an object in a vicinity of a vehicle from information acquired by at least one sensor monitoring the vehicle vicinity, detects contamination on the sensor, and continues air cleaning in which high-pressure air is sprayed onto the sensor for a predetermined air cleaning time, in response to detecting that water droplets are attached to a sensor surface of the sensor. The sensor cleaning apparatus controls autonomous driving of the vehicle using information on the object detected, and outputs a command to clean the sensor with a cleaning liquid, in response to detecting contamination on the sensor and determining that cleaning with the liquid cleaner is possible. The sensor cleaning apparatus controls at least one liquid cleaning actuator to clean the sensor by spraying the cleaning liquid based on the command, and notifies that the sensor is being cleaned with the cleaning liquid.

The invention provides a liquid level measuring device, a liquid level measuring method and a liquid container, and the liquid level measuring device comprises a sensor which is provided with a stay wire; the rotating component is connected with the other end of the stay wire and is used for rotating by taking a rotating shaft as a center; one end of the connecting rod is fixed to the rotating assembly, and the other end of the connecting rod extends outwards from the rotating assembly; the buoy is connected to the other end of the connecting rod and floats on the surface of the liquid, the buoy moves along with the change of the liquid level of the liquid, the movement of the buoy drives the connecting rod to rotate with the rotating shaft of the rotating assembly as the center, and meanwhile, the movement of the buoy drives the pull wire to generate displacement through the rotation of the connecting rod and the rotating assembly; the processor is electrically connected with the sensor; the sensor is used for converting displacement generated by the stay wire into electric signals, and the processor determines and outputs liquid level data of liquid based on the electric signals. Accurate detection of the liquid level is achieved, tiny changes of the liquid level can be detected, meanwhile, the buoy cannot be wound in the moving process, and product faults are avoided.

The present invention relates to an electrostatic spray device comprising: a water tank unit having one open side and accommodating a liquid base solution; an electrode unit, which applies power to the base solution so as to generate a potential difference for droplet formation of the base solution; and a nozzle unit which is provided inside the water tank unit and which discharges the base solution in the droplet form by means of the potential difference, wherein the nozzle unit has a lower portion immersed in the base solution, and thus can autonomously absorb the base solution. Therefore, the present invention can spray micro-droplets by means of electrostatic spraying.

The invention discloses a visual monitoring system for the repairing effect of a cable buffer layer repairing liquid based on multi-sensor information fusion. The monitoring system comprises a repairing liquid injection control module, a multi-sensor monitoring module, a data fusion analysis module and a visual terminal module. The device has the beneficial effects that a synergistic effect is formed through technical improvement of the four modules, the diffusion range and penetration depth of the repair liquid can be accurately captured in real time, waste and liquid accumulation caused by excessive injection of the repair liquid are avoided, and the blind area problem of a traditional repair technology is solved; meanwhile, a parameter database and a self-adaptive fusion algorithm are universalized, so that the adaptability of the technology to different scenes is greatly improved, and the limitation that the traditional technology is poor in universality is broken through; and through real-time dynamic map display and historical data tracing functions, alarm and injection control are linked to form a closed loop, so that visual control of the repair effect is realized, and the safety and controllability of the repair process are further guaranteed.

A modular beverage container assembly is an apparatus designed to store beverage ingredients separate from each other in the same structure. The apparatus includes a drinking lid, a solvent receptacle, a dispensing cap, a solute container, a lid-interlocking snap feature, a receptacle-interlocking snap feature, a cap-interlocking snap feature, and a container-interlocking snap feature. The drinking lid enables the consumption of the desired beverage. The solvent receptacle retains the liquid base for the desired beverage. The dispensing cap enables the dispensing of the desired beverage ingredients from the solute container into the solvent receptacle. The solute container stores the beverage ingredients that can be mixed with the liquid base. The lid-interlocking snap feature and the receptacle-interlocking snap feature enable the removable attachment of the drinking lid to the solvent receptacle. The cap-interlocking snap feature and the container-interlocking snap feature enable the removable attachment of the dispensing cap to the solute container.

The invention discloses a fuel cell hydrogen subsystem control method, equipment and a medium, belongs to the technical field of fuel cells, and is used for solving the problems of complex pipeline, large temperature difference between air and hydrogen, high internal friction, high cost and the like of an existing thermal management system and the technical problem of low operation efficiency caused by no high-precision regulation based on environmental change. The method comprises the following steps: performing intercooler-based flow direction control on cooling liquid in a gas-water separator and stack cooling liquid through a self-adaptive fuzzy PID (Proportion Integration Differentiation) controller to obtain a first cooling liquid flow direction control strategy; performing flow direction control on the cooling liquid in the gas-water separator and the stack cooling liquid based on the thermal management system to obtain a second cooling liquid flow direction control strategy; and according to a temperature feedback regulation control algorithm and based on a three-way valve, valve opening shunting control of the cooling liquid is carried out between the cooling liquid in the gas-water separator and the stack cooling liquid, and a third cooling liquid flow direction control strategy is obtained.

The invention belongs to the field of machining, and discloses a polishing solution service life online detection method and system based on multi-source data and chemical mechanical polishing, and the method comprises the steps: collecting the multi-source data information of a polishing solution and a polishing platform in the machining process; performing offline polishing test to obtain detection data and a removal rate change curve during circular polishing of the polishing solution; the edge computing platform receives the sensor data, preprocesses the sensor data and uploads a processing result to the upper computer; inputting the preprocessed multi-source data into a polishing solution service life prediction model, and predicting the residual service life of the polishing solution and the current theoretical material removal rate; a prediction result is fed back to an operator in real time through a control system interface, and the current remaining life of the polishing solution and the predicted time node for replacing the polishing solution are prompted. The state of the polishing solution can be monitored in real time, an off-line detection result does not need to be waited, the continuity and stability of the polishing process are guaranteed, and the process problems caused by aging of the polishing solution are reduced.

The present disclosure relates to systems and methods for monitoring liquid levels within cartridges of automated cell processing systems during cell processing. A method for automated cell processing may first include coupling a cell processing cartridge to an instrument configured to perform a cell processing operation with at least one module of the cartridge. Next, the method may include detecting, via a vision system of the instrument, a liquid level of a liquid within one or more cell processing modules of the cartridge. Finally, the method may include determining a volume of the liquid based on the liquid level.

The invention provides a full-path liquid cooling charging system and method for a new energy automobile, and belongs to the technical field of new energy automobile charging management. Comprising a liquid cooling charging pile, a charging gun, a vehicle end charging base, a battery pack and a control unit. Wherein the liquid cooling charging pile, the charging gun, the vehicle end charging seat and the battery pack are sequentially and annularly connected in series through a liquid cooling pipeline to form a closed-loop liquid cooling loop; and the control unit is connected with and controls the electromagnetic valve group arranged on the closed-loop liquid cooling loop, and controls the on-off of the closed-loop liquid cooling loop and the circulation of the cooling liquid based on the charging state and the temperature signal. On the basis of guaranteeing the liquid cooling charging effect of the new energy automobile, the charging wire harness path and the whole automobile compressor displacement can be reduced, and then the whole automobile development cost is reduced.

The invention discloses a storage tank bottom plate corrosion risk prediction method based on electrochemical testing, and relates to the technical field of oil and gas storage and transportation monitoring, and the method comprises the steps: obtaining an external soil sample and an internal deposited water sample of a to-be-predicted storage tank, and obtaining the original environment parameters of the samples; the method comprises the following steps: respectively constructing a soil simulation solution and a deposition water simulation solution based on an out-tank soil sample and an in-tank deposition water sample, and respectively adding a standard metal sample made of the same material as a bottom plate of a to-be-predicted storage tank into the soil simulation solution and the deposition water simulation solution so as to realize an external corrosion test and an internal corrosion test, obtaining a corresponding corrosion test result; and inputting the original environmental parameters, the corrosion test result and the bottom plate information of the to-be-predicted storage tank into a preset corrosion risk assessment model to perform corrosion risk level prediction on the bottom plate of the to-be-predicted storage tank, and outputting the corrosion leakage risk level of the bottom plate of the to-be-predicted storage tank. And the bottom plate can be effectively inspected and predicted without periodically opening the tank.

The disclosure regards a computer implemented method for estimating the reactivity of dissolved organic matter in a liquid comprising the steps of obtaining a first fluorescence measurement from the liquid, wherein the first fluorescence measurement comprises a first emission wavelength and a first excitation wavelength, obtaining a second fluorescence measurement from the liquid, wherein the second fluorescence measurement comprises a second emission wavelength and a second excitation wavelength, determining a sample photosensitivity index based on the first fluorescence measurement, the second fluorescence measurement and a conversion factor specific to said liquid, and estimating the reactivity of dissolved organic matter in the liquid based on the sample photosensitivity index, wherein the conversion factor is a correlation between a series of base photosensitivity indexes and a series of fluorescence measurement ratios, obtained from a liquid of a same type as the liquid. The present disclosure further relates to a computer implemented method for calibrating a fluorescence setup in relation to a liquid, and to an optical measurement system for estimating the reactivity of dissolved organic matter in a liquid.

A treatment composition for remediating for remediating hydrogen sulfide (H2S), carbon dioxide (CO2) and other contaminant(s) in a fluid, including: an organic or hydrocarbon based liquid; at least one hydroxide compound or a hydrate thereof; and sodium sulfide (Na2S) or a hydrate thereof.

The welded steel pipe chamfering machine table for the crawler crane tower comprises an L-shaped frame, an air cylinder is fixedly connected to the end wall of the top of the frame, and a fixing base is in transmission connection to the lower end wall of the air cylinder. The welded steel pipe chamfering machine table for the crawler crane tower has the beneficial effects that during chamfering, the liquid base is assembled and connected to the side wall of the fixing base through the positioning screws, the liquid base is convenient to disassemble and assemble, a liquid conveying pipeline is connected to a liquid pipe opening of the liquid base, liquid is poured into an inner cavity of the liquid base and then sprayed out through a spraying hole in the end wall of the right side of a penetrating opening of the liquid base, and therefore chamfering is achieved. The end wall of the right side of the penetrating opening is inclined, spraying holes formed in the end wall of the right side of the penetrating opening are inclined and annularly distributed in a round hole in the right side of the penetrating opening, the spraying holes spray liquid, the liquid is poured to the chamfering tool bit from the chamfering tool bit by 360 degrees, and the chamfering tool bit is protected; the chamfering tool bit is protected in all directions without dead angles, and the cooling effect of the chamfering tool bit is improved.

An embodiment of the present disclosure has a printhead configured to print an image for characteristic detection onto a printing medium containing foaming particles by ejecting a foaming promotion liquid and a colored liquid, the image for characteristic detection having at least N unit regions, the colored liquid being applied to the at least N unit regions in equal amounts, and the foaming promotion liquid being applied to the at least N unit regions in amounts varying in stages; a foaming unit configured to foam the foaming particles; a scan unit configured to scan the image for characteristic detection and obtain, as scan results of the image for characteristic detection, correspondences between the at least N unit regions and scan values of the colored liquid; and a calculation unit configured to calculate a correction value for correcting an application amount of the foaming promotion liquid based on the scan results.

The invention provides a liquid ejecting apparatus and a liquid ejecting method. Under the condition that a driving signal is not appropriate, the printing quality is likely to be reduced. The liquid ejecting apparatus includes: an inkjet head that ejects a liquid based on a drive signal; an observation unit that observes the liquid discharged from the inkjet head; and a control unit that changes the drive signal in accordance with the ejection state of the liquid observed by the observation unit.

A treatment composition for being added to petroleum based liquids for reducing total sulfur content in the petroleum based liquids, comprising: sodium sulfide and at least one hydroxide compound. A dosage of the treatment composition may be added to liquids containing sulfur, including crude oil and distillates of crude oil and then allowed to react with such liquids over a period of time, e.g., hours or days. By such reaction total sulfur content of the liquids may be reduced by more than 50%.

The present invention relates to the technical field of liquid material detection, and discloses a detection system and detection method for multiple liquids based on an optical signal coupling method, the method comprising: through the arrangement of a primary optical fiber and a secondary optical fiber, an optical signal source and an optical power meter can detect changes in optical power, and then calculate the wavelength absorption coefficient of the liquid at different wavelengths, and derive the color characteristics of the liquid. Secondly, the viscosity of the liquid is further calculated by the attenuation of the optical power. Then, by establishing a liquid feature collection, characteristic information such as the color and viscosity of the liquid sample is extracted, and the material characteristics of the liquid are determined by matching these features with known material information. The present invention accurately detects the color and viscosity of the liquid through the coupling of optical signals and the measurement of optical power, combined with the wavelength absorption coefficient of the liquid and the optical power attenuation coefficient.

The present disclosure relates to systems and methods for monitoring liquid levels within cartridges of automated cell processing systems during cell processing. A method for automated cell processing may first include coupling a cell processing cartridge to an instrument configured to perform a cell processing operation with at least one module of the cartridge. Next, the method may include detecting, via a vision system of the instrument, a liquid level of a liquid within one or more cell processing modules of the cartridge. Finally, the method may include determining a volume of the liquid based on the liquid level.

The utility model discloses a hydraulic emergency operator for a gate hoist, and relates to the technical field of hydraulic emergency devices, comprising a housing, a generator body is arranged inside the housing, a detection mechanism is arranged inside the housing, the detection mechanism comprises a support plate, the outer surface of the support plate is fixedly connected to the inner wall of the housing, an oil filling pipe is fixedly connected to the upper surface of the generator body, a fixed plate is fixedly connected to the upper surface of the support plate, a limit block is fixedly connected to the upper surface of the fixed plate, and a support cover is slidably connected to the inner wall of the limit block. When an ultrasonic signal encounters a liquid surface, a part of the ultrasonic wave is reflected back by the liquid surface, and the other part passes through the liquid and continues to propagate downward, and a receiver receives the reflected ultrasonic signal, thereby calculating the liquid level height according to the time interval and the propagation speed, and converting it into an electrical signal to send to a controller for operation, thereby being able to quickly measure the fuel capacity inside the tank.

The invention relates to a substrate processing apparatus and a substrate processing method. The substrate processing apparatus includes: a nozzle having a discharge port and discharging SPM toward a substrate from the discharge port; the mixing part is communicated with the ejection opening; a sulfuric acid-containing liquid supply device for recovering the liquid supplied to the substrate held by the substrate holding unit and discharged from the substrate, preparing a sulfuric acid-containing liquid on the basis of the recovered liquid, and supplying the prepared sulfuric acid-containing liquid to the mixing unit; and a control device. Furthermore, the control device executes: a sulfuric acid-containing liquid preparation step of recovering the SPM supplied to the substrate and discharged from the substrate to prepare a sulfuric acid-containing liquid; and an SPM discharge step of generating SPM by supplying the prepared sulfuric acid-containing liquid and hydrogen peroxide water to the mixing unit and mixing the sulfuric acid-containing liquid and hydrogen peroxide water in the mixing unit, and discharging the generated SPM from the discharge port.

The invention relates to the technical field of chemical production, and provides a method for evaluating the surface electrical property of titanium dioxide powder, which comprises the following steps: grinding and thermally treating titanium dioxide powder particles to obtain titanium dioxide powder with a standardized surface state; preparing a monovalent electrolyte solution, and measuring the basic conductivity sigma0 of the monovalent electrolyte solution at a preset temperature; preparing turbid liquid based on the electrolyte solution and the titanium dioxide powder with the standardized surface state, carrying out solid-liquid separation on the turbid liquid after dispersion treatment, and collecting clarified liquid; measuring the conductivity sigma1 of the clarified liquid at a preset temperature; calculating an equivalent parameter A = [k (sigma0-sigma1)] / c; the unit of sigma0 and sigma1 is mS / cm, c is the mass concentration of the turbid liquid, the unit is g / L, k is a coefficient of 100-1000 and is dimensionless, and the absolute value of the equivalent parameter A is used for quantitatively representing the surface electrical property of the titanium dioxide powder particles and is dimensionless. According to the scheme, direct and quantitative characterization of the intrinsic surface electrical property of the powder is realized.

A computer-implemented method (201, 301) for determining a quantitative condition (QC1, QC2) of a cleaning liquid (19, 119) in a cleaning device (1, 101) of a personal care device (e.g., an electric shaving tool (3, 103)) is provided. The method involves controlling (203, 207, 303) a motor (23, 129) configured to drive a liquid displacement member (21, 121) of the cleaning device for successive operation at least at two different motor speeds (MS1, MS2), and receiving (205, 209, 303) from a sensor (65, 165) a sensor output (SIM1, SIM2) related to a current (IM1, IM2) in the motor (23, 129) for each of the at least two different motor speeds. The method further involves determining (213, 307), for at least two different motor speeds, a parameter value (PdI / dMS) associated with a degree to which the current in the motor varies according to the motor speed, based on the current in the motor; and determining (215, 309) a quantitative condition of the cleaning liquid based on the determined value of the parameter and based on a predetermined relationship between the quantitative condition and the parameter.

The systems, devices, and methods include a liquid level sensor comprising a liquid level sensor plate, a touch sensor plate, and a control unit. The liquid level sensor plate includes a plate made of conductive material. The touch sensor plate also includes a plate made of conductive material. The control unit is coupled to the liquid level sensor plate and the touch sensor plate. The control unit is configured to detect the presence of liquid based on the liquid level data from the liquid level sensor plate and to detect touch input based on the touch data from the touch sensor plate.

Devices and methods for determining whether a contact of a liquid dispenser with a liquid based on sound and / or for determining a liquid volume in the liquid dispenser are provided. According to an embodiment, the liquid dispenser includes a sound generator and an acoustic sensor, and at least one of the sound generator or the acoustic sensor is disposed within the dispense chamber portion. According to an embodiment, the liquid dispenser includes a sound generator and an acoustic sensor, and further includes one or more side conduits, where at least one of the sound generator or the acoustic sensor is disposed within a cavity of a respective one of the one or more side conduits, wherein the cavity and a connector of each of the one or more side conduits are free from resonance within a frequency range of the sound sensed by the acoustic sensor.

The invention discloses a civil air defense door of a composite structure and an installation method of the civil air defense door. The problems that a traditional civil air defense door is large in weight and fixed in performance, and a non-Newtonian fluid pre-filling scheme loses efficacy easily after being stored for a long time are solved. A cavity is formed in the door leaf, and a storage box for pre-storing solid particle powder is detachably contained in the cavity. And a liquid storage tank is additionally arranged and is communicated with the cavity through a pipeline. During use, liquid base liquid is injected into the cavity to be mixed with powder, a non-Newtonian fluid protection layer is formed through activation, and the problem of material sedimentation failure is fundamentally solved. According to the invention, the cavity is divided into two layers, namely the attack-on surface and the attack-back surface, and liquid injection can be independently controlled, so that switching between a standard protection mode and a reinforced protection mode is realized. And the modular storage box design is adopted, so that powder can be uniformly distributed, rapidly replaced and upgraded. The civil air defense door is not provided with a storage box at ordinary times so as to keep light, is quickly mounted during use so as to realize heavy load protection, and has the advantages of high reliability, flexibility and convenience in maintenance.

The variable-frequency ultrasonic vibration lubricated micro-textured turning device of the present invention comprises an ultrasonic vibration unit, a control unit, a turning tool assembly, a height-adjustable bracket, and a large carriage. The turning tool assembly and bracket are mounted on the large carriage, and the ultrasonic vibration unit is supported on the bracket. The device comprises a lubricating liquid supply, an ultrasonic generator, a transducer, and a nozzle. The ultrasonic generator drives the nozzle via the transducer to vibrate and pour lubricating liquid from the lubricating liquid supply unit through the nozzle into the cutting area of ​​the turning tool assembly. The control unit collects cutting force signals from the turning tool assembly and controls the transducer to pour lubricating liquid based on the cutting force signals. Beneficial Effect: During the machining process, by adjusting the ultrasonic vibration frequency and amplitude and adjusting the lathe cutting fluid supply device, the device solves the problem of aggravated debris discharge from the micro-textured pits of the turning tool in multiple ways, provides continuous high-pressure lubricating liquid to the micro-textured interior, and improves the machining efficiency of micro-textured turning tools.