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33results about How to "Meet detection" patented technology
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Continuous small target real-time detection method based on sonar image
ActiveCN119323542Aeasy to deploysmall amount of calculationImage enhancementImage analysisConcurrent computationRadiology
The invention belongs to the technical field of target detection, and relates to a sonar image-based small target real-time detection method, which comprises the following steps of: 1) enhancing and segmenting a sonar image to obtain target intensity, target position and target diffusion range; 2) recovering a target shape of a target in the sonar image based on the target position; and 3) based on the target shape, the target intensity, the target position and the target diffusion range, adopting target multi-frame detection to realize real-time detection of the small target. The method does not depend on large parallel computing equipment, is easy to deploy, is small in calculation amount and high in operation speed, and can meet run-time detection of the equipment on a CPU (Central Processing Unit); the preset parameters are few and clear in meaning, a user can adjust in time according to the use effect, and use is convenient; according to the method, multi-frame detection is adopted, historical target records are reserved, the target position can be reserved when the image is subjected to transient interference, and the anti-interference capability is high.
Owner:BAOLI TIANTONG INSTR CORP +1
Microelectronic magnetic force detection device
ActiveCN119493059Ameet detectionQuick checkMagnetic property measurementsTransformerMaterials science
The invention relates to the technical field of magnetic force detection, and provides a microelectronic magnetic force detection device which comprises magnetic cores, a feeding track, a feeding assembly, magnetic core butt joint mechanisms, a conveying frame, a conveying mechanism and a magnetic detection mechanism, the multiple magnetic cores are arranged on the feeding track in a sliding mode, the feeding assembly is used for conveying the magnetic cores to move, and the two magnetic core butt joint mechanisms are oppositely arranged; the magnetic core butt joint mechanism is fixedly arranged on the sides, away from the feeding assembly, of the feeding rails, the magnetic core butt joint mechanism is used for driving magnetic cores to turn over and be in butt joint, the conveying mechanism is used for conveying the magnetic cores on the feeding rails to the magnetic core butt joint mechanism, and the magnetism detection mechanism is arranged between the two feeding rails; by means of the technical scheme, the problem that in the prior art, when the magnetic cores in a transformer are detected, it is difficult to conduct magnetic detection on a large number of special-shaped and multi-model magnetic cores is solved.
Owner:CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Concrete chiseling surface roughness measuring device and measuring method thereof
InactiveCN119289929Areduce distractionsHigh precisionMeasurement devicesMeasuring instrumentTrackway
The invention discloses a concrete chiseling surface roughness measuring device and a measuring method thereof, and relates to the technical field of roughness measurement. The concrete chiseling surface roughness measuring device comprises a measuring instrument assembly, a track assembly, a traction assembly and a storage assembly. The track assembly is used for providing a stable moving track for the measuring instrument assembly, the traction assembly is used for providing constant-speed driving, the traction assembly is designed in an independent split mode, vibration of the traction assembly does not affect the track assembly and the measuring instrument assembly, interference of external factors on the measuring process of the measuring instrument assembly is reduced, and the measuring accuracy of the measuring instrument assembly is improved. Meanwhile, the measuring instrument assembly can conduct two sets of same-track detection at the same time, the accuracy of detection data is further improved through mutual comparison, compared with direct hand-held roughness instrument movement detection, the accuracy is higher, the device can meet detection of concrete faces at different angles, adaptability is high, and all the parts are detachable or foldable and convenient to carry.
Owner:CHINA RAILWAY SEVENTH BUREAU GRP XIAN RAILWAY ENG CO LTD +1
Method for determining lead salt in sulfadiazine zinc raw material
PendingCN119269423AAccurate detectionmeet detectionPreparing sample for investigationColor/spectral properties measurementsChemical compositionSulfanilamide
The invention belongs to the technical field of medical chemical component detection, and discloses a method for determining lead salt in a sulfadiazine zinc raw material, which comprises the following steps: S1, measuring a lead single element standard solution, and diluting with a nitric acid solution to obtain a linear solution containing different concentrations of lead; s2, weighing a sample, and adding nitric acid for digestion and dissolution to obtain a sulfadiazine zinc test solution; s3, measuring the same amount of nitric acid in the step S2, and performing digestion and dissolution to obtain a sample blank solution; s4, respectively injecting the linear solutions in the step S1 into an atomic absorption spectrophotometer, and making standard koji according to a preset heating program; and S5, respectively injecting the sulfadiazine zinc test solution and the sample blank solution into an atomic absorption spectrophotometer, and determining the lead content in the sulfadiazine zinc according to a preset heating program. The problems that an existing method is low in sensitivity and cannot meet limit requirements are solved.
Owner:HENAN MEDICAL DEVICE INSPECTION INST
Auxiliary test connector for detecting good products and defective products of integrated circuit boards
ActiveCN222145060Ueasy to operateImprove efficiencyElectronic circuit testingMeasurement instrument housingStructural engineeringMechanical engineering
The utility model relates to the technical field of integrated circuit detection equipment, and discloses an auxiliary test connector for detecting qualified products and defective products of integrated circuit boards, which comprises a bottom plate, a fixed seat and a movable seat are arranged on the bottom plate in parallel, the fixed seat is fixedly connected with the bottom plate, and the movable seat is slidably connected with the bottom plate. Clamping devices are arranged on the upper surfaces of the movable seat and the fixed seat, each clamping device comprises a first sliding rail, a first clamping mechanism is arranged at one end of the first sliding rail, a second clamping mechanism is arranged on the first sliding rail in a sliding mode, and a detection device is further arranged on the bottom plate and comprises two second sliding rails arranged on the outer sides of the fixed seat and the movable seat in parallel; a plurality of detection supports are slidably arranged on the two second sliding rails, and a plurality of contact rods are slidably arranged on the detection supports. The device is simple and convenient to operate and high in efficiency, and the position of the contact rod can be flexibly adjusted so as to meet the detection of different positions of the integrated circuit board and the detection of the integrated circuit boards with different specifications.
Owner:JIANGSU RUIXIN INTEGRATED CIRCUIT EQUIP CO LTD
Adhesive tape detection platform
ActiveCN222506479Ueasy to replaceincrease contact surfaceTesting dielectric strengthMeasurement instrument housingAdhesive beltElectric machinery
The utility model discloses an adhesive tape detection platform which comprises a workbench and a fixed plate, the fixed plate is arranged on the workbench, guide rollers are symmetrically and rotatably connected to the fixed plate, adhesive tapes are connected to the two sets of guide rollers, transmission mechanisms are symmetrically arranged on the fixed plate, a threaded rod is fixedly connected to the output end of a motor, and the threaded rod is rotatably connected with a moving block. A telescopic rod is arranged on one side of the moving block, a detection assembly is arranged at the other end of the telescopic rod, a fixing sleeve is arranged at the bottom end of the detection assembly, a connecting rod is arranged at the bottom end of the fixing sleeve, a graphite electric brush head is arranged below the connecting rod, and a fixing mechanism is arranged between the connecting rod and the fixing sleeve. According to the utility model, the transmission mechanism and the graphite electric brush head are arranged, the discharge graphite electric brush head and the conductive graphite electric brush head are contacted with the two sides of the adhesive tape, whether the adhesive tape is insulated is judged through the detection lamp, and the contact surface between the graphite electric brush head and the adhesive tape is increased, so that the detection is more accurate, and the use effect is improved.
Owner:XIAMEN SHANGDA ELECTRONIC INSULATION MATERIAL CO LTD
Multifunctional boxed tobacco strip detection trolley
PendingCN121856475Areduce volumeeasy to moveSpeed controllerWithdrawing sample devicesControl systemPhysics
A multifunctional boxed tobacco strip detection trolley comprises a trolley body, a box holding mechanism, an electric mechanical arm, a weighing mechanism, a control system and a flat plate. A box body is arranged above a chassis of the vehicle body, and a control system is arranged in the box body; the electric mechanical arm is arranged above the box body, the bottom of the electric mechanical arm is connected with the control system, and the other end extends out of the box body and is selectively connected with the sampling device, the punching insertion rod or the temperature measuring rod; the box holding mechanism is arranged on one side edge, close to the electric mechanical arm, of the box body; the weighing mechanism comprises a wireless separated platform scale and an independent panel, the platform scale is placed in the box body, and the independent panel is arranged above the box body and used for displaying weighing data; the panel is arranged at the top of the box; and the control system controls the electric mechanical arm to a position required by temperature measurement punching or sampling, and guides the punching and sampling device to punch at a central temperature measurement point or sample at quartering points. The invention provides a multifunctional boxed tobacco strip detection trolley which is small in occupied area, flexible to move and capable of realizing multi-item detection.
Owner:FUJIAN WUYI TOBACCO
Method and kit for determining various steroid hormones in body fluid by liquid chromatography-mass spectrometry
PendingCN119125354AMeet testing needsThe pre-processing process is simpleComponent separationSolid phase extractionSteroidal hormones
The invention provides a method and a kit for determining various steroid hormones in body fluid by liquid chromatography-mass spectrometry. The method comprises the following steps: pre-treating a biological fluid sample by introducing an isotope internal standard, a salting-out auxiliary reagent, an extracting agent and an automatic pipetting platform, then separating an isomeride and an interferent through liquid chromatography, switching quantitative ions and qualitative ions with positive-negative scanning characteristics by tandem mass spectrometry, making a standard curve by using a calibrator for quantification, and finally determining the content of the biological fluid sample. And low, medium and high quality control products continuously monitor the performance of the method. According to the method, the aim of simultaneously analyzing and detecting 28 steroid hormones and 24 D / 13C / 15N labeled isotope hormones in a sample by using a UPLC-MS / MS technology without using solid-phase extraction and non-derivatization treatment is achieved, and the method is rapid, simple and convenient to operate, multiple in detection variety, high in flux, high in specificity, low in cost, high in sensitivity and high in sensitivity. 28 indexes of a steroid hormone metabolic pathway are effectively and systematically monitored.
Owner:HANGZHOU BOSHENG BIOTECHNOLOGY CO LTD +2
Displacement laser measuring device for house construction
ActiveCN119124000AGuaranteed accuracymeet detectionSurveying instrumentsUsing optical meansSlide plateData error
The invention relates to the technical field of laser measurement, in particular to a displacement laser measurement device for house construction, which comprises a flexible rod, clamping pieces are arranged at the left end and the right end of the flexible rod, the outer end of the flexible rod is slidably connected with a U-shaped correction frame and a U-shaped measurement frame, and a rubber sleeve is mounted between the U-shaped correction frame and the U-shaped measurement frame. A second column is arranged in the middle of the upper end of the U-shaped correcting frame, a first column is installed in the middle of the upper end of the U-shaped measuring frame, driving pieces are arranged in the middles of the upper ends of the two clamping pieces, second adjusting pieces are arranged at the inward ends of the two vertical parts of the U-shaped measuring frame, and T-shaped sliding plates are installed at the inward ends of the two second adjusting pieces. The middle inward end faces of the two T-shaped sliding plates are sunken outwards to form mounting grooves, laser measurers are arranged in the two mounting grooves, synchronous displacement type measurement of the front surface and the rear surface of the wall is achieved through the design, the probability of data errors caused by sinking and other factors is effectively reduced, and the displacement type measurement accuracy is effectively ensured.
Owner:SUZHOU CONSTR ENG GRP CO LTD
Preparation method of direct immunofluorescence detection kit, kit and joint detection method
The present invention discloses a preparation method of a direct immunofluorescence detection kit for multi-pathogen joint detection, a kit for multi-pathogen joint detection, and a multi-pathogen joint detection method, and belongs to the field of immunoassay technology. The preparation method comprises the following steps: providing pathogen control slides and specimen slides for multi-pathogen joint detection; providing a sample diluent; providing a concentrated washing solution for cleaning the pathogen control slide carrying the sample; providing a fluorescein conjugate; and providing a fluorescent antibody diluent. The components of the fluorescent antibody diluent in the preparation method of the direct immunofluorescence detection kit for multi-pathogen joint detection, the kit for multi-pathogen joint detection, and the multi-pathogen joint detection method provided by the present invention have a broad spectrum and good compatibility, and do not need to be adjusted due to different detection antigens, and the same fluorescent antibody diluent can meet the detection of all antigen substrates.
Owner:INNOVITA BIOLOGICAL TECHNOLOGY CO LTD
A wheel tread out-of-roundness detection system and detection method
ActiveCN110966974BMeet the test requirementsExtended service lifeMeasurement devicesWheel-rims surveying/measuringSlide plateControl theory
The present invention discloses a wheel tread out-of-roundness detection system and detection method, belonging to the field of rail transit technology. The detection system of the present invention includes a front mechanism and a detection mechanism installed on the track in sequence along the direction of train entry into the depot, and the detection mechanism includes a pedal assembly, a first sliding plate, a second sliding plate and a fixed plate assembly installed on the inner side of the track and parallel to each other, wherein the first sliding plate and the pedal assembly and the fixed plate assembly, and the second sliding plate and the fixed plate assembly are all slidably connected through a slide rail mechanism, the second sliding plate is connected to the first sliding plate through a bearing, and the first sliding plate is connected to a lifting drive mechanism and is also connected to the pedal assembly through an elastic element. The technical solution of the present invention can be used to perform real-time dynamic detection of the radial runout of the train when the train is running at high speed, and its detection accuracy is effectively improved compared with the existing detection mechanism, and the structural stability of the detection device is good.
Owner:MAANSHAN LEISHI RAIL TRANSIT EQUIP CO LTD
Automatic sleep staging method and device for single-lead electrocardiogram
PendingCN119498779AReduce difficultyReduce memory requirementsHealth-index calculationMedical automated diagnosisSleep stagingPhysical medicine and rehabilitation
The invention relates to the technical field of physiological signal processing, and discloses an automatic sleep staging method and device for a single-lead electrocardiogram. The method specifically comprises the following steps: acquiring an electrocardiogram segment of a current sleep stage based on an electrocardiosignal, wherein the electrocardiosignal can be collected at home; performing short-time Fourier transform on the electrocardiogram segments to obtain a time-frequency graph; and acquiring heart rate variability characteristics of the electrocardiogram segments. And inputting the electrocardiogram segment, the time-frequency graph and the heart rate variability characteristics into a sleep stage classification model, and performing classification and identification of the sleep stage. Sleep staging can be realized only by using the electrocardiosignal, and only the electrocardiosignal at the current stage needs to be processed, so that the difficulty of signal acquisition and the requirement of a deployment platform on a memory are reduced. Besides, the sleep stage is judged on the basis of electrocardiogram segments, time-frequency diagrams and heart rate variability characteristics, the problem that information contained in electrocardiosignals is insufficient is solved to a certain extent, and daily detection can be met.
Owner:SHENZHEN POLYTECHNIC
Static return clearance testing device and method for large-scale high-load compact precision speed reducer
The invention relates to a static backlash testing device and method for a large-scale high-load compact precision decelerator, and the method comprises the steps: 1, locking the input end of the decelerator, and installing an output end force measurement assembly at the output end of a decelerating rotating shaft, 2, placing the decelerator to be tested on a T-shaped groove pedestal in a manner that the output end and the input end face upwards, and 3, installing a force measurement assembly at the output end of the decelerating rotating shaft, the pressing assembly is used for pressing and fixing; and 3, applying positive and negative stress on the output end of the speed reducer, obtaining rotation angle data through an angle sensor, and calculating according to the obtained rotation angle data to obtain a static return clearance value of the speed reducer. The speed reducer backlash detection device effectively solves the problem of speed reducer backlash measurement, and is convenient to use, simple to operate, low in use cost, capable of meeting detection of various speed reducers, accurate in detection, high in detection speed, capable of detecting forward and reverse rotation at the same time, practical and wide in use range.
Owner:天津旗领机电科技有限公司
A method for measuring the mitochondrial energy metabolome
ActiveCN115616112BDerivatization reaction conditions are simplesimple derivation stepsComponent separationTricarboxylic acidCarboxylic acid
The present invention discloses a method for determining the mitochondrial energy metabolome. The method constructs the mitochondrial energy metabolome based on the relevant pathways of mitochondrial energy metabolism, adopts N,N-dimethyl-p-phenylenediamine (DMPD) as a derivatization reagent for target metabolites, and establishes a quantitative analysis method based on UPLC-MS / MS. The mitochondrial energy metabolome includes relevant metabolites in tricarboxylic acid cycle, glycolysis, amino acid metabolism, fatty acid metabolism and nucleotide metabolism. The present invention reacts with a derivatization reagent and a metabolite, has high derivatization efficiency and is easy to operate; a hydrophobic group is introduced after derivatization, thereby improving the retention of the metabolite on a reverse phase chromatographic column; the nitrogen element carried by the derivatization product is easily protonated in the positive ESI mode, thereby improving the detection sensitivity in the mass spectrometer.
Owner:CHINA PHARM UNIV
A hydrogen MEMS sensor for power battery detection and its preparation method
ActiveCN115078461Bhigh sensitivityshort response timeMaterial analysis by electric/magnetic meansPower batteryTetrachloride
The present invention discloses a hydrogen MEMS sensor for power battery detection and a preparation method thereof. The preparation method comprises: mixing tin tetrachloride, a doped metal salt containing palladium chloride, and deionized water, adding a curing agent and a dispersant, stirring, heating and standing to obtain a gas-sensitive material slurry; protecting the electrode on the silicon wafer with a photoresist, and coating the slurry on the surface of the silicon wafer with a slit coater to obtain a film-coated silicon wafer; during coating, the vacuum degree of the slit coater is ≤1.33×10 ‑2 Pa, the nozzle moving speed is 60-70 mm / min, and the size of each nozzle nozzle is 5 μm×1 μm to 5 μm×2 μm; the film thickness of the gas-sensitive material obtained after coating is 1-3 μm; the coated silicon wafer is annealed, cooled to room temperature, the photoresist protecting the electrode is removed, and the cutting, welding and packaging are performed. The sensor prepared in the present invention has high sensitivity and short response time for detecting hydrogen, and can meet the detection of hydrogen in power battery detection.
Owner:ANHUI WEINA IOT TECH CO LTD
A rolling linear guide rail raceway surface waviness detection device
This invention discloses a device for detecting the waviness of the raceway surface of a rolling linear guide, comprising: a bed for providing a mounting plane; a linear guide pair arranged parallel to the rolling linear guide under test, used to guide the sliding of a sensor lifting device in the opposite direction; a linear module for driving the sliding of the sensor lifting device on the bed, realizing the reciprocating motion of the scattered light sensor from the rolling linear guide under test to the detection end; a scattered light sensor for detecting the waviness of the upper and lower raceways on both sides of the rolling linear guide under test; and a sensor lifting device for moving and sliding the scattered light sensor along a direction perpendicular to the linear guide pair, adjusting the height of the scattered light sensor, and rotating the scattered light sensor so that the detection light of the scattered light sensor is aligned with the surface of the raceway under test of the rolling linear guide. This invention can quickly and accurately detect the waviness of the four raceway surfaces of the guide.
Owner:NANJING UNIV OF SCI & TECH
Analysis method for rapidly determining concentration of lamidetan in human plasma
PendingCN119198955AEasy to storemeet detectionComponent separationOther chemical processesBlood plasmaChromatography column
The invention provides an analysis method for rapidly determining the concentration of lamidetan in human plasma. The method comprises the following steps: adding an internal standard labetalol solution and acetonitrile into a plasma sample, carrying out vortex, centrifuging, collecting a supernatant, adding an acetonitrile-water mixture into the supernatant, and carrying out vortex mixing to obtain a pretreated sample to be detected; the method comprises the following steps: preparing an electrospray ionization source for detection by adopting liquid chromatography-tandem mass spectrometry, carrying out isocratic elution by adopting a Venusil MP-C18 (2) chromatographic column, carrying out liquid chromatography separation on a to-be-detected sample, then carrying out mass spectrometry detection, drawing a standard curve based on a detection peak area ratio to obtain a regression equation, and finally calculating to obtain the lamidetan concentration in the to-be-detected sample. The method has the characteristics of simplicity and convenience in pretreatment operation, low plasma consumption and short analysis time, and is suitable for detection of lamidetan in plasma and clinical pharmacokinetic research.
Owner:SUZHOU HAIKE MEDICAL TECH CO LTD
Fuel gas sampling device
PendingCN119574227Ameet detectionRapid coolingWithdrawing sample devicesPreparing sample for investigationGas supplyFuel gas
The invention relates to a fuel gas sampling device. The fuel gas sampling device comprises a shell with a gas flow channel and a sampling rake connected with the shell, the sampling rake is a hollow rod, a first water-cooling flow channel and a first air-cooling flow channel are arranged on the side wall of the sampling rake, a water inlet of the first water-cooling flow channel is connected with a first cooling water supply device, and an air inlet of the first air-cooling flow channel is connected with a first air supply device; one end of the sampling rake is arranged in the shell, the other end of the sampling rake is arranged outside the shell, and a sampling rake body positioned in the shell is provided with a collecting hole for collecting fuel gas. Through the device, high-temperature tail gas is collected and cooled, so that the detection equipment can analyze and detect the collected gas and cannot be damaged.
Owner:ZHUZHOU LUSONG DISTRICT HANNENG IND CO
A specific protein analysis system
ActiveCN117214140BHigh-precision turbidity measurementmeet detectionScattering properties measurementsTransmissivity measurementsLight beamEngineering
The specific protein analysis system comprises a light source assembly, a sample collection and distribution module, a reagent supply module, a specific protein detection module and a control module, wherein the specific protein detection module comprises a light source, a polarized light generator distributed along the light path of the light source, a light beam shaping device and a wavelength selector, and thus the detection light with a specific wavelength and energy concentration, of which the light vector vibrates along a predetermined direction, can be output according to different detection requirements, so that the specific protein analysis system selectively adapts to the detection requirements of various specific proteins.
Owner:SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
Dual-purpose pipeline pressure detection device
ActiveCN222505728USmall amount of workImprove detection efficiencyDetection of fluid at leakage pointDual purposePhysics
The utility model belongs to the technical field of pipeline detection, and particularly relates to a dual-purpose pipeline pressure detection device, which comprises a base, two moving mechanisms and a plurality of detection mechanisms, the two moving mechanisms are respectively arranged at two ends of the base, and a connecting piece I and a connecting piece II are matched between the two moving mechanisms. Each detection mechanism comprises a left detection assembly and a right detection assembly, each of the left detection assembly and the right detection assembly comprises an inner detection piece and an outer detection piece, the outer detection piece of the left detection assembly is installed on the second connecting piece, and the outer detection piece of the right detection assembly is installed on the first connecting piece; a pressure detection piece and a leakage detection piece are mounted between the inner detection piece and the outer detection piece, and the inner side of the inner detection piece is in contact with a to-be-detected pipeline; compared with the prior art, the pressure detection piece and the leakage detection piece are arranged between the inner detection piece and the outer detection piece, so that one detection device is dual-purpose, the work amount of detection personnel is reduced, and the detection efficiency is also improved.
Owner:JINAN JIAHUI QUALITY INSPECTION CO LTD
An under-screen fingerprint lens detection device
The present invention relates to the field of optical lens technology, and specifically to an under-screen fingerprint lens detection device. It includes an outer frame, an upper Z-axis mechanism, an XY-axis mechanism, a lower Z-axis mechanism and a collimator mechanism, wherein the upper Z-axis mechanism, the XY-axis mechanism, the lower Z-axis mechanism and the collimator mechanism are all fixed on a main substrate inside the outer frame; the upper Z-axis mechanism is connected to a light source generator through a light source line; a detection component for detecting an under-screen fingerprint lens is provided on the lower Z-axis mechanism; an under-screen fingerprint lens to be detected is placed on the XY-axis mechanism, and the XY-axis mechanism is arranged between the upper Z-axis mechanism and the lower Z-axis mechanism, so that the axis of the light source emitting surface of the light source line, the axis of the light source receiving surface of the detection component, and the axis of the under-screen fingerprint lens coincide; the collimator mechanism is used to calibrate the horizontality of the upper Z-axis mechanism, the lower Z-axis mechanism and the XY-axis mechanism. The present invention can meet the detection of under-screen fingerprint lenses of various specifications currently on the market.
Owner:LIAONING ZHONGGUANG ELECTRIC TECH CO LTD
Electron impact ionization detector for chromatography
PendingCN119534726Ahigh sensitivityquick responseComponent separationElectron multiplicationScientific instrument
The invention discloses an electron impact ionization detector for chromatography, and relates to the field of precise scientific instruments in the high-end manufacturing industry, the electron impact ionization detector comprises a base station, a dustproof cover is mounted at the top of the base station, an ionization chamber is mounted at one end of the top of the base station, a repulsion pole is movably connected in an inner cavity of the ionization chamber, and a chromatographic column is mounted at the top of the ionization chamber; the opposite sides of the inner cavities of the first installation assembly and the second installation assembly are respectively provided with a bias lens, a focusing lens, a cooperation lens and a plate bias lens. The top of the base station is respectively provided with a quadrupole rod mass analyzer and an electron multiplier. The electron impact ionization detector for chromatography provided by the invention is a universal detector, can ensure that all ionized ions directly reach the detector through passing, ensures that compound information of a sample to be detected is not lost to the greatest extent, and is high in sensitivity, complete in information and high in response speed; the linear range of the electron multiplier is wide, and positive ions or negative ions or positive and negative ion alternate detection can be carried out.
Owner:BEIJING HEJING TECH DEV CO LTD
Quick-change filter press
ActiveCN222266251Ueasy to replaceReduce the risk of hoistingDirt cleaningFiltration separationControl engineeringElectric machinery
The utility model discloses a quick-change filter press which comprises a main machine and a filter plate, the filter plate is mounted in the main machine, the bottom of the main machine is communicated with a receiving part for receiving, a motor for compressing the filter plate is arranged on one side of the main machine, the quick-change filter press further comprises a lifting device capable of moving along the length direction of the main machine, and the lifting device is used for lifting the filter plate. The lifting device comprises a vertical rod and a lifting rod capable of rotating around the axis of the vertical rod and axially sliding along the vertical rod, and a clamping part capable of being used for grabbing the filter plate is arranged at the bottom of the lifting rod. According to the plate-and-frame filter press, the design of rotating and lifting the suspender is realized on the basis of the traditional plate-and-frame filter press, so that the hoisting risk in the process of replacing the filter plate can be reduced, the filter plate is convenient to replace, and magnetic particles are not easy to introduce.
Owner:RUYUAN DONGYANG LIGHT FLUORINE RESIN CO LTD
Modularized water quality sampling and monitoring system
PendingCN121784257Areduce economic costssmall physical weightWaterborne vesselsWithdrawing sample devicesSonarMonitoring system
The invention relates to the technical field of environmental engineering, environmental monitoring and hydraulic engineering, in particular to a modularized water quality sampling and monitoring system which comprises a power main ship and a modularized hanging ship. Wherein the modularized hanging boats at least comprise a sampling hanging boat, an environment monitoring hanging boat and a sonar detection hanging boat; the power main ship is connected with the modularized hanging ship through a detachable connecting device, and the power main ship is in communication connection with the modularized hanging ship; the power main ship provides sailing power and working electric power for the modularized hanging ship; the sampling hanging boat is used for sampling a water sample or collecting bottom mud at a preset destination; the environment monitoring hanging boat is used for carrying out environment monitoring at a preset destination; the sonar detection hanging boat is used for carrying out sonar detection at a preset destination; and the power main ship is used for sending the data of the modularized hanging ship to the shoreside base station and receiving an instruction of the shoreside base station.
Owner:肖印武
Method for chiral separation and determination of levamlodipine in human plasma by LC-MS / MS (Liquid Chromatography-Mass Spectrometry / Mass Spectrometry) method
InactiveCN119643755AHigh-throughput detectionStrong specificityComponent separationChromatographic separationInternal standard
The invention provides a method for measuring levamlodipine in human plasma through LC-MS / MS (liquid chromatography-mass spectrometry / mass spectrometry) chiral separation, which comprises the following steps: A, sample pretreatment: adding an internal standard working solution into to-be-measured plasma, then adding an extracting agent, carrying out vortex and centrifugation, then taking supernate, concentrating until the supernate is dry, and finally redissolving; b, preparing a standard curve and a quality control sample, namely preparing a levamlodipine standard curve sample and a quality control sample working solution, adding the working solution into blank plasma, uniformly mixing, and preparing the levamlodipine standard curve sample and the quality control sample with a series of concentration gradients. C, LC-MS / MS (liquid chromatography-tandem mass spectrometry) determination. According to the present invention, the chiral chromatographic column is adopted to perform the chromatographic separation of the enantiomer, and the LC-MS / MS detection method with characteristics of high specificity, strong specificity, rapid pretreatment, high efficiency, high reproducibility, strong operability, rapid analysis speed, low cost investment and wide application range is established.
Owner:TIANJIN HANYI PHARM TECH CO LTD +1
Dimension-adjustable breather valve detection device
ActiveCN222481814Umeet detectionGuaranteed stabilityMachine valve testingPressure controlled ventilationExhaust pipe
A negative pressure exhaust pipe is connected with a negative pressure control device, a cavity detection head is used for detecting a breather valve, negative pressure adsorption units are connected through a negative pressure connecting hose, and the external size of the negative pressure detection head can be adjusted by adjusting the relative positions of the negative pressure adsorption units, so that the size of the breather valve can be adjusted. Connection and fixation of the breather valves of different sizes are met, detection of relevant parameters of the breather valves of different sizes is further met, and the breather valve fixing device has certain use value and popularization value.
Owner:HANGZHOU QILONG ELECTRONIC TECH CO LTD
Detection device for pre-unloading storage battery into groove
ActiveCN222336285Umeet detectionEasy to observe and judgeElectrical/magnetic thickness measurementsHemt circuitsMechanical engineering
Owner:ANHUI ZHONGNENG POWER SUPPLY CO LTD
A pipeline wall thickness detection device
ActiveCN224815628UWall thickness detection meetsmeet detection
The utility model provides a pipeline wall thickness detection device, include: support, walking mechanism is used for driving support along the axial movement of pipeline, adjusting mechanism is used for adjusting the distance of walking mechanism and support along the radial of pipeline, detection module is set in the central position of support, and the axis of detection module coincides with the axis of pipeline, and detection module is used for measuring the radial distance between the lateral wall of pipeline and axis, through adjusting mechanism is connected between support and walking mechanism, realizes the distance adjustment of walking mechanism and support along the radial of pipeline, to adapt to the change of pipeline inner diameter, to meet the detection of complex pipeline inner wall corrosion pit such as variable diameter structure, through detection module measures the radial distance between the lateral wall of pipeline and axis, can effectively measure the depth and shape of pipeline inner wall corrosion pit, thereby detects the wall thickness change of pipeline.
Owner:SUZHOU NUCLEAR POWER RES INST CO LTD
Analysis device and analysis method for electronic-grade bromomethane
PendingCN119595775Aavoid interferenceachieve separationComponent separationGas analysisAnalysis method
The invention relates to the technical field of gas analysis devices and analysis methods thereof, in particular to an electronic-grade bromomethane analysis device which comprises a first switching valve, a second switching valve, a third switching valve, a fourth switching valve, a fifth switching valve and a sixth switching valve, ten connectors are arranged on each of the first switching valve, the second switching valve and the fourth switching valve, the third switching valve, the fifth switching valve and the sixth switching valve are each provided with six connectors, and the sixth switching valve is connected with a second detector. Therefore, the electronic-grade bromomethane analysis device can solve the technical problems that all components to be detected cannot be quickly separated, the impurity concentration change cannot be detected, an accurate value cannot be given in a very short time, the detection limit is low and the like in the prior art.
Owner:PERIC SPECIAL GASES CO LTD
A wheel-rail defect detection device and detection method based on vibration noise collection
ActiveCN119190124BRealize acquisitionReduce the probability of mutual interferenceAirbagRail transit
The present invention relates to the technical field of rail surface defect detection for rail transit, and specifically to a wheel-rail defect detection device and a detection method based on vibration noise collection. The device comprises a vehicle plate, wherein the left end surface of the vehicle plate is recessed to the right to form two grooves, first pistons are slidably connected in the two grooves, round rods are arranged at the left ends of the two first pistons, the two round rods respectively penetrate two outer cylinders, annular airbags are installed in the two outer cylinders, the two annular airbags are respectively sleeved on the outer ends of the two round rods, collection pieces are arranged at the lower ends of the left parts of the two round rods, the two collection pieces are rotated toward the outer ends to connect with the first wheels, and a driving piece is arranged at the lower end of the vehicle plate. This design realizes the independent movement and collection of the two first wheels, so that the two rails of the track can be independently detected, effectively reducing the probability of mutual interference of the collected data due to the connection between the two first wheels, and effectively ensuring the detection quality and effect.
Owner:BEIJING URBAN CONSTRUCTION DESIGN & DEVELOPMENT GROUP CO LIMITED +1