92 results about "Filter effect" patented technology

The utility model provides an air purifier with interlayer filter, relates to air purifier technical field, including casing, air outlet chamber and bottom plate, is equipped with connecting mechanism between casing and bottom plate, is equipped with air suction mechanism on air outlet chamber, the outside of bottom plate is equipped with interlayer filter mechanism, the both sides symmetry of air outlet chamber and casing bottom are equipped with through groove, the utility model discloses a plurality of filter screen board is in turn in the outside of support rod and is connected, then the filter screen cover is connected in the top of support rod, and in the adjacent filter screen board and filter screen cover between and connect on the separation sleeve, and the top of support rod is tightened on the nut, and the filter screen board and filter screen cover are clamped tightly by the nut, and the filter screen board and filter screen cover are fixed on the support rod, and the bottom plate, support rod, filter screen board and filter screen cover are integrated structure, and the bottom plate is separated from the bottom of casing, and the filter screen board and filter screen cover for filtering effect also are disassembled together, and the disassembly is convenient, also is convenient for cleaning.

The utility model provides a kind of SF6 / N2 mixed gas intelligent on-line monitoring device, it is related to gas monitoring technical field, including processing box, infrared spectrum sensor is fixedly installed in the inside one side of processing box, information processing module for processing information is fixedly installed in the inside one side of processing box, ultrasonic sensor is fixedly installed in the inside one side of processing box, pressure temperature sensor is fixedly installed in the inside one side of processing box, the top surface of processing box is fixedly installed with several alarm lamps, filter screen one, driving motor, cam, connecting roller, gyro wheel, gyro wheel, mounting rod, spring and filter screen one are cooperated with each other by being set, it can prevent dust from contacting multiple sensors such as pressure temperature sensor, ultrasonic sensor and infrared spectrum sensor while preventing air intake fluctuation from affecting mixed gas detection, reach the filtering effect to dust, improve the monitoring effect to SF / N mixed gas.

The utility model relates to chemical material filtering technical field, concretely provides a kind of circulating filter device, including filter box and feeding tank, material conveying pipe and circulating pump;Filter box is opened with input and output, and output is communicated with input by material conveying pipeline;Feeding tank and circulating pump are connected in material conveying pipe;Filter bag, deflector are provided in filter box;Filter bag is set on the position of input corresponding to filter box inner wall;Multiple deflectors are layered interval arrangement along the height direction of filter box, one of adjacent two deflectors is connected to the inner wall of one side of filter box, another is connected to the inner wall of other side, and adjacent two deflectors are cross distribution on vertical projection plane, and deflector is inclined downward and is provided with first filter screen.The utility model realizes the circulation of material in filter box by material conveying pipe and circulating pump, and the multistage filtering mechanism of filter bag, deflector and first filter screen is constructed, and the filtering effect and efficiency are improved.

The application discloses a filter circuit, a photovoltaic inverter and a photovoltaic system, and belongs to the technical field of power electronics. The filter circuit comprises an inductive component, a plurality of first capacitors, a plurality of second capacitors and at least one on-off switching unit. The inductive component comprises a negative winding and a plurality of positive windings, a negative input terminal is used for being electrically connected with the negative poles of a plurality of direct current sources, and positive input terminals are used for being electrically connected with the positive poles of the direct current sources respectively. The first end of each first capacitor is electrically connected with the negative input terminal, and the second end of the first capacitor is electrically connected with the corresponding positive input terminal. The first end of each second capacitor is electrically connected with a negative output terminal, and the second end of the second capacitor is electrically connected with the corresponding positive output terminal. The on-off switching unit is arranged on a target line formed by the positive winding, the corresponding first capacitor and the corresponding second capacitor, and the on-off switching unit makes the target line open when the corresponding direct current source has no output power. The amplitude of the differential mode inductance reduction is reduced, and the differential mode filtering effect is improved.

The utility model discloses a valve assembly, heat exchange device and air conditioner, valve assembly includes: valve island, the flow passage is defined in the valve island, and the valve island forms with the first interface, valve core interface and flow passage interface who communicate with flow passage, and valve core interface is located between the first interface and flow passage interface, expansion valve, expansion valve is installed in the valve core interface position, and expansion valve is communicated between the first interface and flow passage interface, filter assembly, filter assembly is located in the flow passage, and is located between the first interface and valve core interface, and filter assembly forms a plurality of filter holes, and a plurality of filter holes include a plurality of first filter holes and a plurality of second filter holes, and the equivalent diameter of first filter hole is different with the equivalent diameter of second filter hole. According to the valve assembly of the utility model, can effectively filter the refrigerant that flows through in flow passage, can realize the fractional filtration of the impurity in refrigerant, improves the filtering effect and filtering efficiency, can also reduce the flow resistance, guarantees that refrigerant passes through valve assembly normally smoothly.

The application relates to the technical field of spectral imaging, and discloses a multi-snapshot hyperspectral compression imaging system. The multi-snapshot hyperspectral compression imaging system disclosed by the application comprises an optical lens, a pixel filter, a surface array camera and a displacement actuator. The displacement actuator moves the pixel filter according to a preset movement mode so that a detector collects multiple image data with the filter being at different positions and having different filtering effects. An upper computer carries out spatial combination through a spectral domain reconstruction neural network model to reconstruct the multiple image data into spatial-spectral data cube reconstruction data. At this time, image processing is carried out through a set original image acquisition device, so that the spatial-spectral data cube reconstruction data reconstructed through the above scheme has high accuracy, thereby solving the technical problem of low image reconstruction accuracy of the existing hyperspectral compression imaging system.

This utility model proposes a camera lens hood, comprising: a lens hood housing with a filter mechanism for producing a filter effect; two magnetic magnets fixedly installed on the rear side of the lens hood housing, allowing the lens hood housing to be connected to a pocket camera via the magnetic magnets; and a light-shielding plate located on the front side of the lens hood housing. This lens hood is compact and convenient. The magnetic magnets facilitate the mounting and fixing of the lens hood housing onto the lens of a pocket camera. Simultaneously, the light-shielding plate prevents ambient light from entering the lens, making it easily compatible with pocket cameras. This allows professional photography accessories to reach the consumer market, enabling ordinary users to achieve near-professional light control capabilities at low cost, lowering the creative threshold, and effectively improving the shooting effect and playability of pocket cameras.

The application provides an image processing method, a processing device and a storage medium. The image processing method comprises the following steps: determining or obtaining a most probable mode list according to a reconstruction feature of a current block. Through the technical scheme, the most probable mode list can be determined or obtained more appropriately. Furthermore, in the filtering stage, the most probable mode list determined or obtained according to the reconstruction feature of the current block is used for filtering processing, and the filtering effect of the filtering processing can be improved.

This utility model discloses a self-cleaning crude oil vacuum degassing filter assembly, comprising: a connecting pipe, with connecting flanges at both ends; a filter structure in the middle of the connecting pipe; and a cleaning component for cleaning the filter structure near the filter structure. In this utility model, by using a filter structure in conjunction with the cleaning component, when filtering a mixed gas, the filter plate blocks impurities in the mixed air, achieving a filtering effect. After the filter plate has been used for a period of time, a drive motor drives a drive wheel to rotate the connecting frame, rotating the filter plate into a protective housing. Then, an air blowing hood reverses the airflow, blowing away the impurities blocked by the filter plate. This cycle of operation maintains the filter plate's permeability while the filter assembly is in operation.

The application discloses a multi-tank linkage type tail gas centralized collection assembly and relates to the field of tail gas collection, which comprises a first tank body. The gas generated in the fermentation process can be filtered through the filtering mechanism, which provides convenience for the subsequent collection of the gas. When the filtering efficiency of the filter plate decreases, the filter plate can be quickly replaced. The filtering box is connected with the first tank body and the second tank body through a pipeline. The gas generated in the fermentation flows into the filtering box from the pipeline. The gas is filtered when passing through the filter plate. The filtered gas is collected. When the filtering effect of the filter plate decreases, the pull plate is manually pulled. The two pull rods are pulled outwards by the pull plate. The clamping block is moved out of the filter plate clamping groove. The filter plate is pulled upwards. The filter plate is taken out and replaced. The gas generated in the fermentation is filtered. When the filtering capacity decreases, the filter plate can be quickly replaced.

The application relates to a time filtering method, device, computer equipment, chip and medium, which comprises the following steps: acquiring a to-be-filtered signal corresponding to a current filtering number; determining target reference data corresponding to the current filtering number according to the current filtering number; determining a time filtering coefficient corresponding to the current filtering number according to the target reference data; and performing filtering processing on the to-be-filtered signal corresponding to the current filtering number according to the time filtering coefficient. The application can improve the filtering effect.

The application discloses a ball valve, which comprises a main pipeline, a fixed cover is fixedly connected to the upper side wall of the main pipeline, a ball is movably embedded in the inner wall of the main pipeline and is located below the fixed cover, an arc-shaped movable groove matched with the ball is formed in the inner wall of the main pipeline, a water through hole is formed in the middle part of the ball, a rotating shaft is movably and fixedly connected to the upper side wall of the ball and extends through the inner top wall of the main pipeline and into the fixed cover, a tooth rod is movably and fixedly arranged in the upper side wall of the fixed cover, and a limiting mechanism is arranged on one side of the tooth rod in the fixed cover. The rotating mode is replaced by the pressing mode, so that the ball valve is conveniently opened, and under the impact of flowing water on the turbine, the cleaning brush can reciprocally clean the filter screen, the filtering effect of the filter screen is ensured, the main pipeline is prevented from being blocked, and the user only needs to push the push plate inward to achieve the effect that the ball valve is automatically closed, so that the ball valve is convenient to use.

The utility model discloses a kind of heat recovery fresh air systems, including shell, mounting plate, filter box, the top of the shell is provided with mounting plate, the bottom of the mounting plate is provided with connecting plate, the bottom of the connecting plate is provided with filter box, the both sides of the filter box are provided with guide block, the inside of the shell is provided with mounting bracket, the inside of the mounting bracket is provided with slide rail, the guide block is slidably connected in the slide rail, the inside of the filter box is provided with filter screen, the bottom of the connecting plate is installed with electric push rod, the output end of the electric push rod is tightly connected with cleaning brush, the utility model, starting electric push rod drives cleaning brush to clean filter screen, the impurity attached on filter screen is scraped, to facilitate subsequent filter screen filtering air, so that filter screen maintains filtering effect, improve use cycle, reduce processing frequency.

This invention belongs to the technical field of special optical fibers and their photonic devices, and relates to a tunable solid-core anti-resonant optical fiber filter based on surface plasmon resonance. It includes a fiber core, cladding, and outer cladding arranged sequentially from the inside out. The cladding contains six cladding tubes, evenly distributed circumferentially around the center of the fiber core. Each cladding tube includes four unplated and two gold-plated tubes. The two gold-plated tubes are symmetrical about the axis of the fiber core. Both the unplated and gold-plated tubes include a tube wall with a central pore. The inner surface of the tube wall of the gold-plated tubes is coated with a gold film. This invention designs the anti-resonant optical fiber as a solid core structure, making the fiber more robust, and introduces surface plasmon resonance technology into the fiber. By coating the inner wall of the cladding tubes with a gold film to excite the surface plasmon resonance effect, a significant difference in the confinement loss of the two polarization fundamental modes in the fiber core is generated, thereby achieving a polarization filtering effect.

Embodiments of the present application relate to the field of seismic data processing, and disclose a seismic data processing method, device and equipment, comprising: acquiring post-stack seismic data to be compensated and a time-varying Q value model; determining an attenuation travel time function of single-channel seismic data according to the post-stack seismic data to be compensated and the time-varying Q value model; counting a minimum attenuation travel time and a maximum attenuation travel time of the attenuation travel time function of the single-channel seismic data; determining a first number according to the minimum attenuation travel time, the maximum attenuation travel time and a preset increment; constructing a filter bank; and performing point-by-point filtering processing on each seismic trace data in the post-stack seismic data to be compensated by using the filter bank. The filter bank is designed through attenuation travel time analysis, and the continuous coverage characteristics of the filter bank can ensure smooth transition of the filtering effect in the whole time domain, effectively reducing phase and amplitude errors in the filtering process, thereby significantly improving imaging quality and interpretation accuracy of seismic data.

The application discloses an ion migration detector and belongs to the technical field of substance detection. The ion migration detector comprises an ion migration tube and a filtering device. The ion migration tube is provided with a detection cavity, a circulating gas inlet and a circulating gas outlet. The circulating gas inlet and the circulating gas outlet are communicated with the detection cavity respectively. The filtering device comprises a filtering shell, a filter body, a pressing plate and a gas guide pipe. The inlet end of the filtering shell is communicated with the circulating gas outlet. The outlet end of the filtering shell is communicated with the circulating gas inlet. The pressing plate is arranged in the filtering shell. The internal space of the filtering shell is divided into a filtering cavity and a buffer cavity by the pressing plate. A plurality of through holes are arranged at intervals in the pressing plate. The buffer cavity is communicated with the filtering cavity through the through holes. The gas guide pipe and the filter body are located in the filtering cavity. The gas guide pipe penetrates through the pressing plate and is communicated with the buffer cavity. The inlet end of the filtering shell, the gas guide pipe, the buffer cavity, the filtering cavity and the outlet end of the filtering shell are communicated in sequence. In this way, the filtering effect and the detection accuracy are improved.

This application discloses a filtering trace structure, device, and flexible circuit board. The filtering trace structure includes at least one high-impedance trace and at least one low-impedance trace. The high-impedance and low-impedance traces are alternately arranged and connected in series. The characteristic impedance of the high-impedance trace is greater than a preset threshold, and the characteristic impedance of the low-impedance trace is less than the preset threshold. By alternately arranging and connecting at least one high-impedance and at least one low-impedance trace in series, a transmission line structure with periodic impedance changes is formed. The filtering effect is achieved by utilizing the impedance mismatch effect between the high-impedance and low-impedance segments, thereby directly integrating the filtering capability into the signal trace and effectively suppressing radio frequency interference.

This utility model discloses an acoustic filter and a speaker device, including a filter housing, a speaker body, and a temperature control mechanism and a filtering mechanism, both installed inside the filter housing. A piezoelectric substrate is installed in the middle of the inner wall of the filter housing, located inside the first vacuum chamber. Multiple heating wires are evenly installed on the top of the arc-shaped base plate. A terminal post is interlaced between the bottom of the arc-shaped base plate and the inner wall of the filter housing. A temperature sensor is installed on one side of the outer wall of the filter housing. In this utility model, sound waves are filtered by the filtering mechanism inside the filter housing before being transmitted to the speaker. The temperature control mechanism in the filter housing senses the low temperature of the external environment through the temperature sensor, which triggers the heating wires to regulate the low temperature inside the filter housing, keeping it at a constant temperature and reducing the impact on sound wave transmission. This solves the problem that the large temperature difference between the inside and outside of the filter affects the sound wave filtering effect in actual use.

The utility model relates to air purifier technical field discloses water washing air purifier controlling means, including purifier body, the rear side fixed connection of purifier body has rear shell, the inside of rear shell is provided with cleaning mechanism, the cleaning mechanism is used for cleaning to filter device, the bottom of purifier body is provided with height adjusting mechanism, the height adjusting mechanism is used for adjusting the height that purifier placed, the left and right sides of rear shell are provided with quick -detach mechanism. In the utility model, start motor, drive threaded sleeve and threaded rod one rotation, make cleaning block remove, cleaning block drives cleaning brush to clean filter screen surface dust, when dust too much, rotate and take out fixed bolt, pull rear shell, L shape clamping block slides in the clamping groove, take down rear shell, replace filter screen again, realize the cleaning and replacement of filter device, avoid the influence purifier filter effect.

The utility model discloses a kind of crystallizing tank devices of automation precision temperature control, it is related to crystallizing tank technical field, specifically a kind of crystallizing tank devices of automation precision temperature control, including crystallizing tank main body, further include filter component;By setting first collecting hopper, cylinder, second collecting hopper and spiral conveying rod and the structure such as etc., the efficient filtration to impurity in crystallization is realized.Crystalline is conveyed to right side under the driving of spiral conveying rod, falls down impurity through filter screen in the process, while fixed rod on spiral conveying rod further drives crystalline to turn over, improve filtering effect.In addition, cylinder can slide left and right under the driving of second motor, further enhance the turning effect of crystal, make impurity more fully contact with filter screen, to realize more thorough filtration.Compared with prior art, the filtering efficiency of the utility model is significantly improved, can effectively remove impurity in crystallization, improve the purity of product, satisfy the demand of high-purity product production.

The embodiment of the invention provides a smudginess detection device, a smudginess detection method and an air purifier. The device is used for detecting the smudginess degree of a smudginess layer on the surface of a filter screen, a light generator and a light receiver are located on different side edges of the filter screen, and the transmitting end of the light generator and the receiving end of the light receiver are located on the air inlet side of the filter screen; the control processing unit is used for sending a detection instruction to the detection unit; the detection unit is used for controlling the light generator to emit a light source based on the received detection instruction; the light receiver is used for sensing the light source to output a sensing signal to the detection unit; the detection unit is also used for receiving and converting the induction signal to obtain a smudginess value and transmitting the smudginess value to the control processing unit; and the control processing unit is further used for performing data processing on the dirt value to obtain the dirt degree, so that the dirt degree of the filter screen can be accurately and effectively detected, and the filtering effect of the air purifier is effectively monitored.

The application relates to a multi-stage filtering filter, and relates to the technical field of filters.The multi-stage filtering filter comprises a shell, a cover body arranged on the shell and provided with an oil inlet hole and an oil outlet hole, a filter element assembly arranged in the shell and forming an oil inlet channel and an oil outlet channel, oil in the oil inlet channel being filtered by the filter element assembly and then being sequentially output through the oil outlet channel and the oil outlet hole, a bypass valve located at a connection position of the oil inlet channel and the oil outlet channel, and a filtering assembly used for filtering oil input into the oil outlet channel after the bypass valve is opened. According to the application, the bypass valve is opened, the filtering element filters the input oil and then inputs the oil into the oil outlet channel, so that the oil can be filtered after the bypass valve is opened, and the filtering effect of the filter is further improved.

The utility model provides a kind of multi-stage centrifugal pump with filtering function, including pump base and outer screw connecting pipe, motor and multistage centrifugal pump body are installed in pump base upper end by multiple bolts, outer screw water inlet pipe is welded in multistage centrifugal pump body front end left side, first fixed sleeve ring is fixedly sheathed in outer screw water inlet pipe outer rear end, this design solves the original chemical centrifugal pump with filtering function, cup type filter screen is limited fixed using a large number of bolts, when cleaning or replacing cup type filter screen, it needs to be assisted by external wrench to loosen and disassemble multiple bolts one by one, this operation is more complicated, influence subsequent centrifugal pump operation problem, the utility model uses modularization double cup type filter screen structure, cooperate with magnetic attraction positioning, thread connection and rubber seal, after long time filtering effect in one of cup type filter screen, it is quickly replaced, to greatly reduce the influence on subsequent centrifugal pump operation.

The application discloses a kind of semiconductor cleaning equipment's cleaning liquid filtering device, cleaning liquid filtering device includes partition plate;Partition plate is separated into cleaning cavity and filter cavity along depth direction by cleaning tank, filter cavity has first cavity, second cavity and third cavity in turn, cleaning cavity is communicated with first cavity.Cleaning liquid filtering device further includes temperature control component being arranged in first cavity, ultrasonic generator being arranged in second cavity and bubble removal component being arranged in third cavity, ultrasonic generator is used to carry out depolymerization treatment to cleaning liquid in second cavity, third cavity is connected with filter component, and the liquid outlet of filter component is communicated to multiple cleaning tanks.Temperature control component is used to heat cleaning liquid in first cavity, and only allow temperature to reach preset depolymerization temperature cleaning liquid to enter second cavity, bubble removal component is used to carry out bubble removal treatment to cleaning liquid in third cavity.By depolymerization to cleaning liquid in filtration, it is favorable to improve filtering effect.

The utility model discloses a wave trap device. Voltage following module's signal input end is connected with the signal to be trapped, and voltage following module's signal output end is connected with first stage wave trap module's signal input end, and first stage wave trap module's signal output end is connected with first stage high pass filter module's signal input end, and first stage high pass filter module's signal output end is connected with first stage opposite phase amplification module's signal input end, and first stage opposite phase amplification module's signal output end is connected with second stage wave trap module's signal input end, and second stage wave trap module's signal output end is connected with low pass filter module's signal input end, and low pass filter module's signal output end is connected with second stage high pass filter module's signal input end, and second stage high pass filter module's signal output end is connected with second stage opposite phase amplification module's signal input end. Through cascading two stage wave trap processing, can improve the total suppression ability of interference signal, has significantly enhanced the filter effect to specific frequency band.

The present application relates to physiological signal processing technical field, disclose a kind of multi-modal physiological signal acquisition equipment's anti-interference filter method, system, terminal and storage medium, comprising: the multi-modal physiological signal of acquisition is preprocessed;Modal identification and feature extraction are carried out to the multi-modal physiological signal after pre-processing;According to modal identification result, corresponding filter is selected, and filter parameter is dynamically adjusted;Filtering path and order are adjusted based on cascaded filter structure and dynamic switching mechanism;Based on crosstalk processing and reference channel compensation mechanism, adaptive interference estimation and offset are carried out;According to the extracted feature, parallel filtering is carried out, and the evaluation parameter of each filtering result is compared based on output result selection mechanism, and according to the comparison result, the final signal is selected and output.The present application realizes the effective suppression of power interference, motion artifact, crosstalk and multi-source interference such as high-frequency noise, improves the real-time and stability of filtering effect.

The utility model discloses a cooling liquid discharge mechanism relates to gear processing technical field, including work table, recycling box, filter mechanism and liquid pumping mechanism, and the top fixed mounting of work table has the fixed frame, and recycling box fixed connection is in one side of work table, and filter mechanism sets up between the liquid storage tank and recycling box, and liquid pumping mechanism sets up in one side of work table. The utility model discloses the setting mode of recycling box, filter mechanism and liquid pumping mechanism cooperation, utilizes filter mechanism and can filter the cooling liquid of adulteration waste chip, and the adulteration waste chip is transported to the recycling box in the storage through the filter belt of inclination, can filter the cooling liquid and handle, and through the scraper subassembly and the jet pipe and the spray head of setting, can remove the impurity chip of being stuck on the filter belt, to guarantee the persistence and stability of filter effect, and liquid pumping mechanism can again extract the cooling of filtered cooling liquid and carry out secondary utilization, avoid the waste of resources, convenient to use.

The application discloses a charge pump circuit and a control method. The circuit comprises a plurality of charge-discharge circuits and a filter circuit. The charge-discharge circuit comprises a first switch unit, a charge-discharge unit and a second switch unit connected in sequence. The opening and closing of the first switch unit and the second switch unit realizes the charge-discharge of the charge-discharge unit. The charge-discharge circuit outputs corresponding output signals in different time periods. The superposition of the output signals reduces the amplitude of the ripple on the total output signal and increases the frequency of the ripple on the total output signal. The filter circuit is used for filtering the ripple on the total output signal. According to the charge pump circuit, the number of the charge-discharge circuits is selected, the number of the output signals output by the charge-discharge circuit in different time periods is increased, the superposition of the output signals reduces the amplitude of the ripple on the total output signal and increases the frequency of the ripple, the same filter circuit produces a better filtering effect, and the area and power consumption of the circuit are not significantly increased.