43results about How to "Detection will not affect" patented technology

The invention discloses an inhibiting method of background noise based on multiple statistical models and minimum mean square deviation, which comprises the following steps: proceeding short-time Fuliye transmission for voice signal corresponding to present input frame; utilizing the frame to retain the pure voice amplitude variance estimation and noise amplitude variance estimation on each frequency; calculating the estimation of real part and imaginary part corresponding to each frequent component of voice signal in the present frame; counting the probability of non-existed prior voice of each component frequency of the input frame; modifying the estimation result of real part and imaginary part of each frequency component; obtaining the true distribution of voice and noise in the real applying precisely; improving the inhibiting effect with stable estimating course; reducing the calculating complexity; fitting for kinds of voice communicating systems.

The invention discloses a photoelectric correction sensor for a variable semitransparent coiled material and a detection method for the same, and belongs to the technical field of photoelectric correction detection. The photoelectric correction sensor and the detection method for the same are free from the influence of the stretching state of the detected coiled material during correction detection on the stretchable semitransparent detected coiled material. The photoelectric correction sensor comprises a support, wherein three groups of identical photoelectric detection units are arranged on the support, each group of the photoelectric detection units comprises a light source, a first collimation lens, a second collimation lens and a photosensitive device, the light source, the first collimation lens, the second collimation lens and the photosensitive device in the same group of the photoelectric detection units are sequentially arranged from top to bottom along a vertical straight line, the light source is arranged at the focus of the first collimation lens, the first collimation lens and the second collimation lens are oppositely arranged in parallel, and the photosensitive device is arranged at the focus of the second collimation lens; the voltage output end of each photosensitive device is in one-to-one connection with the three voltage output interfaces of the photoelectric correction sensor respectively.

The invention discloses a multi-quenching fluorescent probe and a method for detecting a target nucleic acid sequence. The multi-quenching fluorescent probe has two or more quenching groups. The method for detecting the target nucleic acid sequence comprises steps as follows: a to-be-detected nucleic acid sequence is taken as a template, a fluorescent PCR reaction is performed under the action ofa corresponding primer and the multi-quenching fluorescent probe, and a dissolution curve is drawn. Compared with other dissolution curve analysis technologies, the target nucleic acid sequence detection method based on cutting of hybrid sequence fluorescence quenching groups has the advantages that when no target sequence is detected, the fluorescent probe does not produce a fluorescent signal, so that the background is notably reduced during analysis of the dissolution curve, and detection of other positive target sequences cannot be affected; when multiple fluorescent probes are detected, the background signals of the fluorescent probes cannot interfere with each other, and accordingly, interpretation of multiple PCR is clearer.

The invention discloses a heat exchange device. The heat exchange device comprises a draught fan and a detection device body. The detection device body comprises two signal elements used cooperatively with each other. Signal emission and induction are conducted between the two signal elements. One signal element is arranged on one draught fan blade and rotates along with the draught fan, and the relative position between the other signal element and the signal element arranged on the draught fan blade is constantly changed. Or, the two signal elements are oppositely arranged on the two sides of the draught fan blades. The invention further provides a draught fan fault detection method and device. According to the heat exchange device and the draught fan fault detection method and device, the problem that fault detection cannot be conducted on the draught fan when a draught fan electrical system is broken down is solved.

The invention discloses a primer, a fluorescent probe and a method for detecting target nucleic acid sequences. Quenching groups or fluorescent groups are modified at proximal ends 3' of the primer, fluorescent groups or quenching groups are modified at proximal ends 3' of the fluorescent probe, the to-be-detected nucleic acid sequences are used as templates, PCR (polymerase chain reaction) is carried out by the aid of the primer and the fluorescent probe, and dissolution curves are analyzed after the reaction is carried out, can be plotted and can be used for detecting the target nucleic acid sequences. The primer, the fluorescent probe and the method have the advantages that the method is high in specificity and sensitivity, background signals among probes are free of mutual interference, and accordingly multiple PCR can be clearly interpreted.

The invention discloses an agricultural planting soil real-time detection system. The system comprises a base, a lifting box, a data processing module, a miniature optical spectrum instrument and a PC; the left side of the top end surface of the base is vertically provided with a threaded rod and a guide rod; the threaded rod penetrates through the upper side wall and lower side wall of the rightend of the lifting box and is rotationally sleeved with a first gear disc through an external thread; the left side of the top end surface of the lifting box is provided with a servo motor; the top end of a transmission shaft is fixedly sleeved with a second gear disc located at the inner cavity of the lifting box; the left side of the bottom end of the lifting box is fixedly provided with a detection sleeve; the bottom end of the outer wall of the detection sleeve is radially provided with a detection head; the signal input port of the miniature optical spectral instrument is connected with the detection head through a wire; the transmission shaft extends to a position below the detection sleeve and is connected with a spiral drill bit; the PC comprises a calculation processing module; and the calculation processing module is connected with the data processing module through a communication module. With the agricultural planting soil real-time detection system of the invention adopted, soil layers of different depths in a planting area are detected in real time, so that related technicians can be facilitated to judge soil quality conditions.

The invention discloses a biological particle detection system based on a gelatin detection baseband. The system comprises a sealed dark chamber, a detection box, an air path system, an optical system, a photoelectric conversion module, and an air extracting pump, wherein the sealed dark chamber is provided with an air outlet, the detection box is arranged inside the sealed dark chamber, and comprises a baseband coated with gelatin, and a baseband driving device, the air path system is provided for collecting and ejecting aerosol biological particles, the optical system comprises a LED light source and an optical lens, and is provided for aerosol biological particle monitoring analysis, the photoelectric conversion module is provided for photoelectric conversion, and the air extracting pump is provided for generating negative pressure in the sealed dark chamber. With the nozzle of the air path system, the aerosol biological particles are ejected on the baseband coated with the gelatin to form a circular aerosol biological particle sample spot for detection, the baseband driving device drives the baseband to convey the sample spot to a fixed monitoring point, the probe of the optical lens completes data acquisition of the biological particle characteristics of the sample spot. The system has the following advantages that: the control precision is high, the detection result has high reliability, the monitoring can be continuously performed for not less than 70 hours, the system is convenient to use, and the like.

The invention provides a preparation method for an engineering strain of Escherichia coli used for detecting the heavy metal copper and establishment of a method for detecting copper in a water body by using the engineering strain of Escherichia coli. The engineering strain provided by the invention has the technical characteristics of specificity, sensitivity, rapidness, cheap price, stability and capacity of quantitative determination of the concentration and bio-availability of copper in a water body. The engineering strain has a wide detection linear range and high sensitivity in detection of copper ions, wherein the detection linear range is 0.39 to 94 [mu]M and lowest detection limit is 0.25 [mu]M; the engineering strain is applicable to both quantitative determination of copper in water bodies like various sewage, domestic drinking water, acidic mine wastewater and electroplating wastewater and to assessment of biotoxicity of treated or restored copper-contaminated water bodies; so the engineering strain and physical and chemical analytical methods like atomic absorption spectrometry can realize complementary analysis of bio-availability and total amount of copper in water bodies, thereby providing bases for objective evaluation of the biotoxicity of the heavy metal copper.

The invention discloses a voltage regulator circuit and a method thereof. A voltage regulator circuit includes an error amplifier, an output circuit, a current sensing circuit, a protection switch and a decision circuit. The error amplifier generates a control signal according to a reference voltage and a feedback voltage. The output circuit has a power element, and the power element converts a supply voltage to an output voltage according to the control signal. The feedback voltage is related to the output voltage. The current sensing circuit generates a current sensing signal corresponding to an output current flowing through the power element. The decision circuit controls the protection switch to clamp the control signal according to the current sensing signal and a current reference signal.

The invention discloses a novel direct bilirubin detection kit. The novel direct bilirubin detection kit consists of a reagent R1 and a reagent R2, wherein the reagent R1 consists of a Tris-HCl tartaric acid sodium hydroxide buffer solution, glycerine, dithiothreitol, silver nitrate, methyl isobutyl ketone, triton X-100, Na2-EDTA and oxammonium hydrochloride; the reagent R2 consists of sodium hydrogen phosphate, sodium biphosphate, sodium persulfate, Na2-EDTA and NaCl. All the components are scientifically combined, the accuracy in measuring a sample within 0-400 [mu]mol / L is relatively good, the precision is high, the repeatability is good, the anti-interference ability is strong, the reagents are relatively good in stability, and the novel direct bilirubin detection kit is suitable for a full-automatic biochemical analyzer and has a high clinical use value.

The invention discloses a microfluidic chip used for a transmissive terahertz time-domain spectroscopy system and a manufacturing method thereof. The microfluidic chip provided by the invention is composed of a disc-shaped cover sheet, a clamping sheet and a substrate which are in fixedly-connected arrangement from top to bottom, wherein a to-be-measured liquid enters a detection area through a liquid inlet channel arranged on the cover sheet and a liquid inlet arranged on the clamping sheet, is measured by terahertz beams which vertically penetrate through the detection area of the microfluidic chip, and finally flows out through a liquid outlet and a liquid outlet channel arranged on the cover sheet. The manufacturing method for the microfluidic chip is simple, has high manufacturing efficiency and low processing cost, and does not relate to precision processing in the process of bonding; and the chip manufactured by using the manufacturing method for the microfluidic chip provided by the invention has the advantages of uniform and even thickness, more stable quality and convenient assembly and disassembly.

The invention discloses a cell characteristic parameter detection platform. The cell characteristic parameter detection platform is characterized in that a loading station, a cell size measurement station, a cell voltage measurement station and an unloading station are arranged on a working table, are sequentially arranged and are all positioned on the same axis; a cell size measurement unit is arranged on the cell size measurement station and the cell size measurement unit is connected with an industrial personal computer; a cell parameter measurement unit is arranged on the cell voltage measurement station and the cell parameter measurement unit is connected with the industrial personal computer; a sliding table for linearly reciprocating is arranged on the working table and the slidingtable is connected with the industrial personal computer; the sliding table is positioned right below each station; an object stage is arranged on the sliding table; and the object stage linearly reciprocates among all the stations under the action of the sliding table. According to the detection platform provided by the invention, detection efficiency of cell characteristic parameters is improved, automation of enterprise detection is promoted, and the cell characteristic parameter detection platform is helpful for production efficiency and benefits of an enterprise.

The invention is applicable to the field of sample analysis equipment, and discloses a sample analyzer, a sample analysis system, a control method of the sample analyzer and a storage medium. The sample analyzer comprises an analyzer execution main body, a first information acquisition device and a first control device; the analyzer execution main body is configured to be capable of executing a preset item and a sample detection item, and the preset item comprises at least one of a maintenance item, a calibration item and a quality control item; when the analyzer execution main body is executing the preset item and the first control device judges that the sample to be detected enters the sample analyzer according to the sample information fed back by the first information acquisition device, the first control device judges whether to control the pause of the preset item according to a preset pause rule, and if the preset item is judged to be paused, the sample to be detected enters the sample analyzer; if yes, controlling the analyzer execution main body to pause the preset item, and controlling the analyzer execution main body to execute the sample detection item on the to-be-detected sample. Maintenance, calibration and quality control of the sample analyzer and detection efficiency of the to-be-detected sample are considered.

The invention discloses a textile wire device, comprising a base, the upper surface of the base is equipped with a support frame through bolts, the upper surface of one end of the support frame is fixedly provided with a first support rod, one of the first support rods A first yarn guide rod is installed on the side through threads, and a yarn guide wheel is installed on the first yarn guide rod, and a second support rod is arranged on the upper surface of the other end of the support frame, and one side of the second support rod A second yarn guide rod is installed, and a yarn guide wheel is installed on the second yarn guide rod. The present invention can guide multiple silk threads at the same time, and can arbitrarily adjust the angle of yarn guide according to the production needs, and the design is simple and convenient, and the installation is fast.

The invention provides a connecting rod appearance size detection system. The appearance size detection system comprises a feeding mechanism, a carrying mechanism, a moving mechanism and a laser detection system. The feeding mechanism is connected with the moving mechanism through the carrying mechanism, and the laser detection system is arranged on the moving mechanism. The invention further provides a detection method of the connecting rod appearance size detection system. Through cooperative use of the moving mechanism and the laser detection system, the size, defect detection and characterrecognition of a connecting rod can be efficiently and accurately detected. A plurality of supporting pieces are inserted into two symmetrical clamping grooves. The number and mounting positions of the supporting pieces can be freely adjusted to adapt to connecting rods of different sizes, and the connecting rods are placed on the supporting pieces. The number of the supporting pieces only needsto stably support the connecting rods, the supporting pieces do not need to be laid in a large-area piece-by-piece mode, and therefore material cost is saved, and detection of a follow-up laser detection system cannot be affected.

The invention belongs to the technical field of composite materials, and discloses a composite material for enriching viruses in droplets and application thereof, the composite material for enriching viruses in droplets comprises an ionic liquid component and a polymer component; the ionic liquid component is amino acid ionic liquid, and the amino acid ionic liquid is anionic amino acid ionic liquid. The composite material for enriching the viruses in the droplets can efficiently capture and enrich virus aerosol in the droplets, fully releases the captured and enriched viruses into a nucleic acid extraction buffer solution, keeps a virus sample not damaged after capture, and does not interfere with the subsequent process of nucleic acid detection. According to the invention, the problem of charge loss of commercial electret polymer fibers is solved, and capture and enrichment of virus aerosol in the presence of water are completed by applying a tiny voltage. Compared with a preparation method in the prior art, the material disclosed by the invention is simple in preparation mode, can be prepared by a soaking method, and is easy for large-scale production.

The invention discloses a cleaning effect detection device for the automobile interior trim part cleaning agent, which comprises a detection box and a treatment cavity in the detection box, and is characterized in that an inlet communicated with the outside is formed in the left side of the treatment cavity, a first electric sliding rail is arranged in the treatment cavity; A clamping plate is arranged on the first electric sliding rail in a sliding mode, a clamping mechanism is arranged in the clamping plate and can clamp the interior trim blanket, a stain cavity is formed in the treatment cavity, and stains are placed in the stain cavity.According to the device, the blanket on which stains are poured can be cleaned; Dust is poured after cleaning is finished, and whether the dust remainson the blanket or not is detected, so that the cleaning effect of the cleaning agent is judged; the cleaning effect of the cleaning agent is judged by adding different amounts of reagents according tothe thickness of the blanket and selecting proper washing times according to the amount of the added reagents, so that the cleaning is more thorough, and the detection is not influenced.

The invention provides a detection device and a detection method of a connecting rod detection system. The detection device comprises a moving mechanism and a laser detection system, the moving mechanism comprises a moving mechanism sliding rail, a supporting plate and a supporting piece, and the supporting plate is arranged on the moving mechanism sliding rail in a sliding mode and driven by a supporting plate air cylinder; two moving mechanism clamping jaws are symmetrically arranged on the left side and the right side of the upper portion of the supporting plate; each moving mechanism clamping jaw comprises a first moving mechanism clamping jaw connecting rod arranged in the direction from the head end to the tail end of the moving mechanism and a second moving mechanism clamping jaw connecting rod perpendicularly connected with the first moving mechanism clamping jaw connecting rod, and the second moving mechanism clamping jaw connecting rods of the two moving mechanism clamping jaws face each other. The invention further provides a detection method of the detection device of the connecting rod detection system. Through cooperative use of the moving mechanism and the laser detection system, the size of a connecting rod can be efficiently and accurately detected, and defect detection and character recognition are realized.

The invention relates to a display screen and a display device. The display screen comprises a display panel and a fingerprint identification module, wherein the fingerprint identification module is arranged on the bottom side of the display panel; a visible light conversion layer is arranged in the display panel; and the visible light conversion layer is used for receiving visible light and converting the visible light into invisible light which can be received by the fingerprint identification module. The display screen is high in fingerprint identification precision.

The invention discloses an inhibiting method of background noise based on multiple statistical models and minimum mean square deviation, which comprises the following steps: proceeding short-time Fuliye transmission for voice signal corresponding to present input frame; utilizing the frame to retain the pure voice amplitude variance estimation and noise amplitude variance estimation on each frequency; calculating the estimation of real part and imaginary part corresponding to each frequent component of voice signal in the present frame; counting the probability of non-existed prior voice of each component frequency of the input frame; modifying the estimation result of real part and imaginary part of each frequency component; obtaining the true distribution of voice and noise in the real applying precisely; improving the inhibiting effect with stable estimating course; reducing the calculating complexity; fitting for kinds of voice communicating systems.

The embodiment of the invention discloses silicon carbide flaw detection equipment, and belongs to the technical field of semiconductor detection. According to the technical scheme, the equipment comprises a supporting frame, an objective table and an imaging device are arranged on the supporting frame, the imaging device is located above the objective table, and a through hole is formed in the objective table; a first light source irradiating to the objective table is arranged at the position, between the imaging device and the objective table, of the supporting frame, and a transmission light source irradiating to the objective table is arranged at the position, below the objective table, of the supporting frame; a polarized light source irradiating the objective table is further arranged at the position, below the transmission light source, of the supporting frame; a polarization tester is arranged at a position, below the imaging device, of the support frame; and the polarization tester can rotate and is separated from the right lower part of the imaging device. The invention can solve the problems that in the prior art, due to the fact that whether flaws exist on a silicon carbide substrate or not is directly observed with naked eyes, detection is relatively strenuous and not accurate enough.

The embodiment of the invention provides a video lag detection method and device, computing equipment and a medium. According to the invention, the target position parameter used for indicating the position of the video playing area in the video frame is determined based on the at least one first video frame in the to-be-processed video, so that the video playing area is determined from the second video frame based on the target position parameter under the condition that the at least one second video frame in the to-be-processed video is acquired. Therefore, based on the video playing areas in the two adjacent second video frames in the to-be-processed video, the lagging condition of the to-be-processed video is detected, and the video playing areas only comprise the video pictures, so that the existence of comments, gifts and the like outside the video pictures does not affect the detection of the lagging condition of the video, and the detection accuracy is improved. And thus, the accuracy of video lag detection can be improved.

The invention discloses a preparation method of an MEMS inertial sensor based on anti-magnet suspension. The preparation method comprises the steps of: determining the positions of four etching grooves to be etched on a supporting layer of an SOI silicon wafer; etching the four etching grooves to be etched in the supporting layer of the SOI silicon wafer; etching a plurality of insulating layer release holes in a device layer of the SOI silicon wafer; removing a corresponding insulating layer in a middle area of the supporting layer through the insulating layer release holes to obtain the etching grooves; symmetrically disposing diamagnetic materials on the walls of the grooves, and aligning the etching grooves of the two device diamagnetic materials for packaging; disposing a fixed permanent magnet on top of the outer side of the upper etching groove to provide a suspension force acting on a suspended permanent magnet; placing the suspended permanent magnet in a closed space formed by two etching grooves; providing an diamagnetic force for the suspended permanent magnet by the diamagnetic materials; and when the position of the suspended permanent magnet changes, serving the diamagnetic force as a quasi-elastic restoring force, and using the displacement of the suspended permanent magnet to determine an external inertial acceleration. The inertial sensor prepared by the preparation method disclosed by the invention is not affected by friction.

The invention discloses a to-be-tested object carrier which comprises a base and a surface cover, the base is provided with a bump and a vacuum groove surrounding the bump along a first direction, the base is also provided with a first channel and a second channel, the bump is provided with a bearing surface for bearing a to-be-tested object, the first channel is used for communicating the vacuum groove with an external vacuum source, and the second channel is used for communicating the vacuum groove with an external vacuum source. The second channel is communicated with the vacuum tank and opened on the bearing surface; the projection of the bump and the projection of the second channel on the first plane are suitable for being located in a non-detection area; the vacuum tank is configured in a way that the first detection area is suitable for being located in a projection on a first plane; the projection of the first channel on the first plane is located outside the projection of the object to be measured on the first plane; the surface cover hermetically covers the vacuum tank, and the surface cover and the vacuum tank define a vacuum cavity; and the projection of the vacuum tank and the surface cover on the first plane and the overlapped part of the first detection area are configured to be suitable for light transmission. The surface cover is prevented from deforming and the to-be-detected object is prevented from being damaged.

The invention discloses a photoelectric correction sensor for a variable semitransparent coiled material and a detection method for the same, and belongs to the technical field of photoelectric correction detection. The photoelectric correction sensor and the detection method for the same are free from the influence of the stretching state of the detected coiled material during correction detection on the stretchable semitransparent detected coiled material. The photoelectric correction sensor comprises a support, wherein three groups of identical photoelectric detection units are arranged on the support, each group of the photoelectric detection units comprises a light source, a first collimation lens, a second collimation lens and a photosensitive device, the light source, the first collimation lens, the second collimation lens and the photosensitive device in the same group of the photoelectric detection units are sequentially arranged from top to bottom along a vertical straight line, the light source is arranged at the focus of the first collimation lens, the first collimation lens and the second collimation lens are oppositely arranged in parallel, and the photosensitive device is arranged at the focus of the second collimation lens; the voltage output end of each photosensitive device is in one-to-one connection with the three voltage output interfaces of the photoelectric correction sensor respectively.

The invention discloses a voltage regulator circuit and a method thereof. A voltage regulator circuit includes an error amplifier, an output circuit, a current sensing circuit, a protection switch and a decision circuit. The error amplifier generates a control signal according to a reference voltage and a feedback voltage. The output circuit has a power element, and the power element converts a supply voltage to an output voltage according to the control signal. The feedback voltage is related to the output voltage. The current sensing circuit generates a current sensing signal corresponding to an output current flowing through the power element. The decision circuit controls the protection switch to clamp the control signal according to the current sensing signal and a current reference signal.

The invention belongs to the field of nutrition pumps. The invention discloses a blockage detection device and method for a nutrition pump and the nutrition pump. The device comprises a sliding piece,a magnetic piece and a sensor; the sliding piece is slidably arranged on a support of the nutrition pump; the sliding piece comprises a first end face and a second end face which are oppositely arranged; the first end face is used for abutting against a liquid inlet area of a pump pipe arranged on the support, and the second end face is used for abutting against a liquid outlet area of the pump pipe; the magnetic part is arranged on the sliding part; the sensor is arranged on the support and is used for detecting blockage of the pump pipe according to the magnetic induction intensity change of the magnetic part. When the liquid inlet area is blocked, the section of the pump pipe at the liquid inlet area is reduced, so that the sliding part drives the magnetic part to move towards the liquid inlet area; and when the liquid outlet area is blocked, the section of the pump pipe at the liquid outlet area is enlarged, so that the sliding piece drives the magnetic piece to move towards the liquid inlet area. According to the invention, whether the pump pipe is blocked or not can be directly detected, power consumption is smaller, and the requirement for the use environment is low.

The invention provides a preparation method for an engineering strain of Escherichia coli used for detecting the heavy metal copper and establishment of a method for detecting copper in a water body by using the engineering strain of Escherichia coli. The engineering strain provided by the invention has the technical characteristics of specificity, sensitivity, rapidness, cheap price, stability and capacity of quantitative determination of the concentration and bio-availability of copper in a water body. The engineering strain has a wide detection linear range and high sensitivity in detection of copper ions, wherein the detection linear range is 0.39 to 94 [mu]M and lowest detection limit is 0.25 [mu]M; the engineering strain is applicable to both quantitative determination of copper in water bodies like various sewage, domestic drinking water, acidic mine wastewater and electroplating wastewater and to assessment of biotoxicity of treated or restored copper-contaminated water bodies; so the engineering strain and physical and chemical analytical methods like atomic absorption spectrometry can realize complementary analysis of bio-availability and total amount of copper in water bodies, thereby providing bases for objective evaluation of the biotoxicity of the heavy metal copper.