19results about How to "Meet detection" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The invention relates to the technical field of film glow point product detection, in particular to a polaroid glow point detection device which comprises a workbench, a feeding unit, a filter disc inspection unit, an optical positioning point recognition unit, a glow point detection unit and a discharging unit are sequentially arranged on the workbench, and the feeding unit comprises a moving module and a stock bin module; the moving module sucks the polaroid from the stock bin module and moves the polaroid to the filter disc inspection unit; a jig moving module of the filter disc inspection unit receives and bears the polaroid on the moving module, and a filter disc switching module of the filter disc inspection unit is used for selecting a filter disc corresponding to the polaroid; the bright spot detection unit comprises a manipulator, an adsorption jig, an adsorption jig moving module, a re-judgment camera and a warping detection camera, the manipulator sucks the polaroid on the jig moving module and carries the polaroid to the adsorption jig, and the adsorption jig moving module drives the adsorption jig to sequentially move to the re-judgment camera and the warping detection camera for shooting; and the full-automatic detection function of the bright spot film product is realized.

The invention discloses a high-low brightness constant current time-sharing line scanning control system and control method based on machine vision, and the system comprises: 1, a high-low brightness constant current time-sharing line scanning control system based on machine vision, which comprises a main control module; a brightness high-speed switching module; the constant-current light source driving module comprises a first voltage following circuit, an FPGA (Field Programmable Gate Array) control branch and an LED light source driving branch; a large and small power switching module; a heat dissipation module; a temperature detection module; the control method of the high-low brightness constant-current time-sharing linear scanning control system based on machine vision comprises the following steps: S1, inserting an LED light source; s2, the first brightness adjusting signal is sent to a brightness high-speed switching module, and the second brightness adjusting signal is sent to a constant-current light source driving module; s3, the high and low power switching module is switched into high power or low power; s4, switching the heat dissipation module into high-power heat dissipation or low-power heat dissipation; and S5, the temperature detection module carries out multi-point position temperature measurement on the machine vision environment.

The invention provides a method for determining the concentration of indobufen in human plasma based on a liquid chromatography-tandem mass spectrometry (LC-MS / MS) technology. The specific operation of the method comprises the following steps: adding an internal standard solution and an organic solvent into a plasma sample, and ensuring full extraction of indobufen through vortex mixing. And separating by using a centrifugal technology, and collecting supernate as a pretreated sample to be detected. An Eclipse Plus C18 chromatographic column is adopted for isocratic elution, effective separation of indobufen is achieved, and then a sample is subjected to mass spectrometric detection. And drawing a standard curve based on the mass spectrum peak area ratio, obtaining a regression equation, and calculating to obtain the concentration of the indobufen in the sample to be detected. 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 indobufen in plasma and clinical pharmacokinetic research.