75results about How to "Easy detection" patented technology

The invention discloses a preparation method and application of a concave-structure SERS (Surface Enhanced Raman Scattering) substrate for prostatic cancer exosome detection, and relates to the field of Raman spectrum detection. The invention aims to solve the problems that the quantity of electromagnetic field hot spots of the currently reported SERS substrate with the concave structure is small, the SERS substrate does not have good uniformity, the size is not matched with EVs, the detected EVs signal is relatively weak, and the parting detection requirement cannot be met. The preparation method of the SERS substrate with the concave structure comprises the following steps: 1, preparing a PDMS concave trap structure array; 2, preparing a concave well array of which the surface is covered with densely arranged Au NPs; according to the invention, Au nanoparticles are grown in situ in a PDMS concave structure, a concave trap array of which the size is matched with that of EVs and the surface is covered with densely arranged Au NPs is constructed, high-sensitivity detection (lower detection limit of 105 particles / mL) and high-accuracy typing of prostatic cancer EVs are realized, and the accuracy rate can reach 98% or more.

The invention provides a geological forecasting system and method and an electrode system, and relates to the technical field of geological exploration. The electrode system comprises: a cutterhead configured to cooperate with a backflow electrode to construct an alternating electric field; a plurality of electrode assemblies, each of the plurality of electrode assemblies comprising: a first electrode configured to output a current in the direction of the tunnel face of the construction tunnel; the second electrode is arranged around the periphery of the first electrode; the third electrode is arranged around the periphery of the second electrode, and the first electrode, the second electrode, the third electrode and the cutterhead are arranged in an insulating mode. According to the method, the current signal vertically flowing into the stratum can be used for finely evaluating the stratum in front of the tunnel face, more accurate abnormal information is provided for site construction, and the risk of tunnel construction is greatly reduced.

The invention discloses an underwater pipeline robot front end obstacle collision detection device which comprises a mounting disc, a driving disc is rotationally connected to one side of the mounting disc, a driving motor used for driving the driving disc to rotate is mounted on the mounting disc, and a limiting disc connected with the mounting disc is arranged on the side, away from the mounting disc, of the driving disc. The driving disc is provided with a plurality of driving sliding grooves which are distributed in a circumferential mode and inclined. The limiting disc is provided with a plurality of limiting sliding grooves corresponding to the driving sliding grooves in a one-to-one mode. The outer side of the limiting disc is slidably connected with a plurality of detection plates in one-to-one correspondence with the limiting sliding grooves, the inward end of each detection plate is provided with a sliding shaft in sliding connection with the corresponding limiting sliding groove and the corresponding driving sliding groove, and the end, facing outwards, of the limiting sliding groove is provided with a plurality of strain force sensors in one-to-one correspondence with the detection plates. The outward end of each detection plate is rotationally connected with a supporting roller. The front end of the robot is provided with a collision sensing front-end obstacle, so that the front-end obstacle can be more effectively detected.

The invention discloses a waste road fence dismantling robot for municipal engineering, and relates to the technical field of dismantling robots. The device comprises a crawler-type chassis, a dismantling vehicle body is installed on the top of the crawler-type chassis in a driving mode, an electric main push rod is fixedly installed on one side of the dismantling vehicle body, and a vertically-arranged lifting electric push rod is fixedly installed at the telescopic end of the electric main push rod; the telescopic end of the lifting electric push rod is arranged downwards and fixedly provided with a steering mechanical arm, and the driving end of the steering mechanical arm is fixedly provided with a horizontally-arranged connecting cantilever. When a fence stand column buried underground is pulled out, a slotting drilling machine drives a drill bit to drill a circle of bucket-shaped groove in the circumferential side of the stand column, then an electric main push rod, a lifting electric push rod and a drilling machine electric push rod are reset, automatic machining of the bucket-shaped groove in the top end of the stand column is completed, and the pulling-out frame assembly can be stably connected with the stand column in a clamped mode through the bucket-shaped groove; and the top end of the upright post cannot be unhooked in the pulling process without pre-punching and threading.

The invention discloses a road crack segmentation method and device based on deep learning, electronic equipment and a program product. According to the method, two collaborative and functional complementary processing paths are adopted to perform parallel processing on a to-be-segmented image so as to obtain corresponding feature information: on one hand, the to-be-segmented image is converted into a feature sequence containing spatial position information, and global semantic modeling is performed on the feature sequence; global semantic features representing the overall shape of the crack and long-range semantic dependence are obtained; and on the other hand, local texture and edge detail information of the crack is directly extracted from the to-be-segmented image, and detail enhancement features are obtained. Thirdly, fusing the global semantic features and the detail enhancement features to obtain target fusion features considering crack positioning, connectivity and boundary and texture expression; according to the segmentation result output based on the target fusion features, even tiny cracks can be effectively depicted, and then the continuity, boundary definition and robustness of tiny crack segmentation under the complex road background can be improved.

The invention discloses a novel microroot canal root phenotype detection method based on water-soluble holing, which comprises a water-soluble holing mechanism, the water-soluble holing mechanism sprays water and holes in plant root soil, and the water-soluble holing mechanism comprises a water tank, a stacking groove plate, a communicating hole, a water inlet and outlet hole, a sealing cover, a water conveying pipe, a water pressure regulating valve, a water pump, a water spraying head, a connecting hole and a water spraying hole. The water conveying pipe is wound on the outer portion of the slurry suction pipe, the water spraying head is connected with the slurry suction short pipe, the water spraying head sprays water to punch holes in soil at the roots of plants, the slurry suction short pipe sucks away slurry, then the transparent root pipe is placed in the holes, and the transparent root pipe is placed in the holes. Shooting is carried out after the shooting position of the macro camera is adjusted, so that plant root system images can be conveniently collected, after collection is completed, the transparent root canal is taken out, the hole is filled with slurry in the slurry storage tank again, the plant root system is buried, and damage to the plant root system is reduced.

The invention discloses a crack detection device for constructional engineering metering detection, the crack detection device comprises a supporting base, a rotating table, a supporting frame, a driving assembly and an ultrasonic detection device, the rotating table is rotatably arranged on the supporting base, a mounting seat is arranged at the upper end of the rotating table, and a rotating shaft is arranged at the lower end of the supporting frame; the supporting frame is hinged to the mounting base through a rotating shaft, the driving assembly is arranged in the supporting frame, the ultrasonic detection device is mounted on the driving assembly, and the driving assembly is used for adjusting the displacement of the ultrasonic detection device. The invention relates to the technical field of constructional engineering detection equipment, in particular to a convenient-to-use crack detection device for constructional engineering metering detection, and the crack detection device can be conveniently adjusted, so that cracks of a building wall surface or ground can be flexibly detected, and detection data can be transmitted in real time; and the detection flexibility, convenience and efficiency are improved.

This invention provides a method for hypertension risk assessment, relating to the field of epigenetic detection technology. It includes: performing event alignment and residual modeling on a qualified signal set to establish a base probability at the locus level and forming baseline features through neighborhood consistency screening; constructing a tunneling sensitization model and contextual attention, fusing discriminative and generative evidence to obtain enhanced features; quantifying IGF2BP3 and aligning and fusing it with the enhanced features; constructing an IGF2BP3-mediated metabolic network based on this, performing time-series modeling and stability assessment, and extracting final-state features; fusing the final-state risk vector with multi-gene scores to complete adaptive grading and compliant report generation. This method is robust, interpretable, and easy to deploy.

The invention belongs to the technical field of gravity dam topographic survey, and particularly relates to topographic survey equipment for concrete gravity dam modeling, which comprises a survey main body, a driving assembly arranged on the survey main body, a signal enhancement type earth surface pretreatment mechanism and a gravity compensation type self-adjusting survey mechanism, the signal enhanced earth surface preprocessing mechanism is arranged on one side of the lower end of the surveying main body, and the gravity compensation type self-adjusting surveying mechanism is arranged on the other side of the lower end of the surveying main body; according to the topographic survey equipment for concrete gravity dam modeling, signal attenuation and vegetation, especially vegetation containing a large amount of water, can be reduced through the signal enhancement type earth surface preprocessing mechanism, electromagnetic waves of a geological radar can be absorbed and attenuated, after the vegetation is cleaned, signal attenuation can be reduced, the penetration depth of radar signals can be increased, and therefore the effect of modeling of the concrete gravity dam is achieved. Therefore, the underground structure can be better detected.

The invention relates to a human immunodeficiency virus detection device and a preparation method thereof, and belongs to the technical field of biomedical detection. The sample pad, the combination pad, the reaction tank pad, the cellulose membrane and the water absorption pad are sequentially overlapped and pasted on the bottom plate according to the chromatography direction to form the detection device, the reaction tank pad is made of one or more of glass fibers, polyester fibers and cellulose materials, and the reaction tank pad is obtained by soaking the reaction tank pad in a reaction tank pad treatment solution and then drying the reaction tank pad; the reaction tank pad treating fluid comprises 0.01 to 0.2 weight percent of high-molecular polymer and 0.1 to 5 weight percent of saccharide. The detection device provided by the invention has the advantages of high sensitivity and short detection time, particularly, the detection sensitivity of the antigen is higher than the national standard 2.5 IU / mL and the sensitivity of other products in the prior art and can reach 1IU / mL, and the detection device is suitable for clinical and household rapid detection requirements.

The invention belongs to the field of underwater information detection, and particularly relates to a bottom-supported underwater multi-physics-field information detection device, which comprises a mounting rack, an information detection module, a buoyancy module and an information integration module, and is characterized in that the mounting rack comprises an open top-layer three-dimensional frame, a middle-layer three-dimensional frame and a bottom-layer three-dimensional frame, and the top-layer three-dimensional frame is provided with a sound releaser; an anchor block base is movably arranged at the bottom of the bottom-layer three-dimensional frame and is connected with an execution end of the sound releaser, an information detection module of the sound releaser is located on the top-layer three-dimensional frame, and the top-layer three-dimensional frame is of a fully-open and unshielded structure and has higher perceptibility to the outside, so that underwater information can be monitored more easily in an omnibearing and more sensitive manner; however, most of existing similar devices are of semi-closed or closed structures, signal sources received by information detection modules are unidirectional, and if information needs to be monitored in all directions, the information detection modules need to be arranged in multiple directions.

The utility model relates to the technical field of EPS motors, in particular to a waterproof and breathable upper cover of an EPS motor. The motor comprises a motor upper cover, a plurality of air holes and a waterproof breathable film, the plurality of air holes are formed in the motor upper cover, the waterproof breathable film is installed on the motor upper cover in a hot welding pasting mode and covers the plurality of air holes, a fixing piece is arranged on the motor upper cover, the plurality of air holes and the waterproof breathable film are located in the fixing piece, and the waterproof breathable film is arranged on the motor upper cover. And a ventilating valve cover is arranged on the fixing piece. According to the utility model, through the arrangement of the air holes and the waterproof air-permeable membrane, the composition of components required by waterproof air permeability of the whole motor is simplified, the waterproof air-permeable effect of the motor is guaranteed, the waterproof air-permeable membrane is installed in a hot welding pasting mode, the installation convenience of the waterproof air-permeable membrane is guaranteed, the production efficiency of the motor is improved, and the production cost is reduced. And through the arrangement of the fixing piece and the ventilation valve cover, foreign matter can be prevented from entering and adhering to the waterproof ventilation film, and the protection effect on the waterproof ventilation film is improved.

The present application provides a fuzzy testing method and device based on a decision tree, which uses a modified BT template to parse sample data in a target data format, obtains file data in the target data format, generates a decision tree based on the file data, mutates the decision tree, and parses the mutated decision tree to obtain deformed data, and finally runs the target program to parse the deformed data, and determines the system vulnerability based on the running information of the target program. This solution can generate file data in the target data format based on the modified BT template, enrich the format of file data based on demand, and further improve the form of the deformed data obtained by mutating the decision tree, so as to better detect system vulnerabilities and improve the probability of vulnerability discovery.

The utility model discloses an environment detection device for a dust environment, which comprises a hollow box body, a hollow rotating bracket is rotatably connected to the middle of the inner side of the box body, a plurality of hollow measuring heads are fixedly connected to the upper side of the rotating bracket, and an intermittent part is connected to the lower side of the rotating bracket and is used for the rotating bracket to rotate for intermittent time. The lower side of the rotating support is rotationally connected with a bent pipe, the bent pipe is connected with air draft equipment, the upper side of the air draft equipment is fixedly connected with an air supply pipe, and the upper side of the air supply pipe is connected with detection equipment used for detecting dust in air. The dust collection device effectively solves the problem that the detection result of the detection equipment deviates from the true value due to the fact that dust in the air is inconvenient to collect in a multi-direction and high-efficiency mode in the prior art.

The utility model discloses a fire information acquisition device for wind power plant fire-fighting monitoring, which comprises a base and a first movable groove, the top end of the base is fixedly connected with a first fixed seat, the top end of the first fixed seat is provided with a support column, the outside of the base is provided with a fixed shell, and the fixed shell is provided with a first movable groove. And a fixing plate is fixedly connected to the outer part of the first fixing seat. According to the fire information acquisition device for wind power plant fire-fighting monitoring, the first movable groove and other parts are arranged, the device is moved to an installation area, an air cylinder is opened, and a movable plate at the bottom is stamped downwards through a telescopic rod, so that a positioning rod at the bottom is conveniently driven to move in the first movable groove and is inserted into the ground, and the device can be automatically fixed to the ground conveniently; the fixing efficiency is higher, the speed is higher, more labor is saved, and the problem that the installation efficiency is low due to the fact that a worker needs to manually screw a fixing bolt into the ground through a tool, and a base of the fixing bolt is fixedly connected with the ground is solved.

The invention relates to the technical field of oil separators, in particular to an alkali washing process of a hydraulic element for an oil separator, which comprises the following steps: degreasing, degreasing agent cleaning, alkali washing, neutralization and excess acid cleaning. The alkali washing step comprises the following steps: adding 4-6 parts by weight of sodium nitrate and 3-10 parts by weight of sodium hydroxide into 80-100 parts by weight of water, and stirring until the sodium nitrate and the sodium hydroxide are dissolved to obtain alkali washing liquid medicine; the temperature of the alkali washing liquid medicine is increased to 50-65 DEG C, and then the hydraulic element cleaned with the degreasing agent is soaked in the alkali washing liquid medicine and kept for 15-30 min; the method has the advantages that seam marks can be better judged, and the percent of pass of the oil separator is improved.

The embodiment of the invention discloses a distributed optical fiber sound sensing system and device and a sound detection method, and the system comprises a laser source assembly which is used for generating continuous initial laser; the input end of the coupler is connected with the output end of the laser source assembly, and the coupler is used for dividing the initial laser into a first laser beam and a second laser beam; the input end of the acousto-optic modulator is connected with one output end of the coupler, the output end of the acousto-optic modulator is connected with the first input end of the interferometer or the input end of the erbium-doped amplifier, and the acousto-optic modulator is used for modulating the first laser beam into monopulse laser; and the interferometer is used for modulating the single-pulse laser into double-pulse laser and carrying out sound detection, and is also used for carrying out interference on the second laser beam to generate a reverse laser beam so as to carry out frequency adjustment on the laser source assembly. And the signal-to-noise ratio and the detection precision of the sensing system are improved.

The utility model relates to technical field of hardware circuit board circuit structure, concretely relates to a MOS pipe short circuit identification protection circuit, and technical solution main points include the identification circuit between input and the source electrode s of MOS pipe Q3 is connected, identification circuit protection resistance RS1, resistance R1, resistance R2, capacitor C1, triode Q2 and singlechip, the series connection between input and MOS pipe Q1 on resistance RS1, triode Q2's emitting electrode connects input, capacitor C2 one end and resistance R1 one end, triode Q2's base connects capacitor C2 other end, resistance R1 other end and resistance R2 one end, resistance R2 other end connects the joint between resistance RS1 and MOS pipe Q3, triode Q2's collector connects singlechip one pin, the utility model discloses through identification circuit, carries out short circuit detection and identification to MOS pipe, in order to facilitate circuit protection.

This application discloses a high-precision microwave frequency measurement method and system based on continuous-time crystal phase transitions, belonging to the field of quantum sensing technology. This method utilizes the characteristic of the Rydberg atom system at the critical point of a continuous-time crystal phase transition where the response slope of the detected light transmission signal to the microwave frequency is significantly enhanced, breaking through the resolution limit of traditional linear responses. The system includes a quantum sensing unit, an optical excitation and detection module, a microwave modulation and scanning module, an auxiliary radio frequency field module, and a signal processing and control center. By precisely adjusting the parameters, the system is driven to the vicinity of the critical point, the critical frequency is identified, and its high response slope is used to achieve precise frequency measurement. This invention employs a two-stage measurement process, balancing wide dynamic range and high precision, and can be flexibly tuned to adapt to different frequency bands, possessing broad application prospects, especially in microwave communication, frequency metrology, and other fields with significant technical value.

This utility model provides a hydraulic locking device for positioning heavy cargo on ships, belonging to the field of cargo positioning and locking technology. It includes two fixed seats; each fixed seat is secured to the ship by four fixing screws. A base block slides on the fixed seat, and a wooden compression block is provided inside the base block. A first hydraulic cylinder on the fixed seat drives the base block to move. A second hydraulic cylinder is hinged to the base block, and its extended end is connected to a connecting seat. Steel wire ropes are connected to the front and rear connecting seats respectively. A guide rod is welded to the base block, and a hexagonal adjustment groove is provided at the adjustment point of the fixing screw. An auxiliary groove is opened on the fixed seat to hide the fixing screw. This device achieves double locking through the compression block and steel wire rope, improving the fixing stability. The wooden compression block prevents damage to the cargo, the guide rod ensures structural stability, and the auxiliary groove facilitates timely detection of screw loosening, solving the problems of poor fixing effect, fragile cargo, and difficulty in detecting component loosening in existing devices.

The utility model provides an infrared light detection device, which relates to the technical field of infrared light detection devices and comprises a fixing plate, a storage groove is arranged on the outer wall of the fixing plate, a rack is fixedly mounted on the top surface in the storage groove, an L-shaped plate is slidably mounted in the storage groove, and a first motor is fixedly mounted on the outer wall of the L-shaped plate. During use, a worker starts the first motor and the gear to rotate according to a position needing to be detected, the gear is in meshed connection with the rack, so that the gear moves along the rack and further drives the L-shaped plate to move, the infrared light detection device body moves left and right, and the rolling wheels are in contact with the inner wall of the fixing groove, so that the L-shaped plate can move conveniently; meanwhile, a worker can start the electric telescopic rod, and the telescopic end of the electric telescopic rod stretches and pushes the infrared light detection device body to move up and down, so that the infrared light detection device body can be moved to a position where the infrared light detection device body is not shielded, and detection is facilitated.

A detection device and method for a distribution network cable joint belong to the technical field of cable joint detection, a temperature value collection unit, a temperature value performance advanced estimation unit and a temperature value performance control unit are defined, the temperature value of a distribution network cable head is estimated in advance through a cable head detection advanced estimation mode, and when there is a difference, the temperature value of the distribution network cable head is estimated in advance. Performance analysis is performed on the sampling temperature values in sequence according to the sequence of the performance control modes, and the related performance control modes are performed after the performance risks are analyzed, so that the sampling temperature values are ensured to be analyzed and controlled preferentially according to the performance control modes with high performance risks; the method is suitable for advanced estimation improvement of the temperature value of the distribution network cable head; and a temperature value detection improvement unit is defined, the detection and measurement performance of the distribution network cable head can be integrally analyzed according to the performance analysis items, and whether the detection performance of the temperature value of the distribution network cable head of the temperature measurement sensor needs to be improved or not is timely determined.

This application discloses a lidar, a method, apparatus, and medium for controlling the detection area, relating to the field of lidar technology. In this lidar, both the laser and detector are mounted on a moving module. When the moving module moves, it moves the laser and detector, causing changes in the direction of the laser's emitted light and the detector's receiving field of view. This means the detection area can be adjusted, improving the lidar's resolution when the detection area is small. Secondly, because the direction of the laser's emitted light can be moved, an area can be scanned by changing the direction of the emitted light. Therefore, fewer lasers can be used when detecting target objects, reducing costs. Furthermore, by using a collimation module to collimate the diverging light and a focusing module to focus the detection beam reflected back from the target object, detection of distant objects is achieved.

The utility model relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle convenient to detect, which comprises an unmanned aerial vehicle, a camera is fixedly arranged on the side wall of the unmanned aerial vehicle, a cleaning mechanism convenient for the unmanned aerial vehicle to detect is arranged on the unmanned aerial vehicle, and the cleaning mechanism comprises a swing rod. According to the unmanned aerial vehicle convenient to detect, when a camera needs to be cleaned, a motor is started to drive a lead screw to rotate, and meanwhile, a sliding block, a limiting rod, a limiting groove, the swing rod, the rotating shaft and the rotating disc are matched, so that the camera can be cleaned conveniently, and the camera can be cleaned conveniently. The flannelette can be driven to be attached to the surface of the camera to move, then the surface of the camera can be cleaned, it is avoided that a large amount of dust is attached to the camera, the shooting quality of the camera is affected, and workers can conveniently detect the surrounding environment through the camera.

The utility model discloses a false tooth crack detection device, which particularly relates to the technical field of false tooth production and comprises a base, a support frame fixedly connected to the top end of the base, an ultrasonic flaw detector mounted at the top end of the base, a detection head mounted at one end of the ultrasonic flaw detector, an adjusting mechanism mounted on the inner side of the support frame, and a limiting component mounted at the top end of the base. The limiting assembly comprises a first variable frequency motor, the first variable frequency motor is installed in the base, the output end of the first variable frequency motor is fixedly connected with a fixing frame, and a second variable frequency motor is installed in the fixing frame. Therefore, the detection head can conveniently detect the false teeth from multiple angles, the influence of human factors on the detection result is reduced, meanwhile, the detection requirements of the false teeth of different shapes and sizes can be met, and the detection efficiency and flexibility can be improved.

The utility model relates to a radiology atlas atlantoaxial joint shooting auxiliary device relates to medical auxiliary equipment technical field, including head fixing mechanism, support mechanism, hanged connecting part, height adjusting mechanism and angle adjusting mechanism, head fixing mechanism is connected support mechanism through hinged shaft, support mechanism right side is connected with hanged connecting part, and hanged connecting part connects flat panel detector. The utility model has the advantages of solving the problem of low examination efficiency when the atlas atlantoaxial joint is examined in hospital, and the angle of the head of the person being shot is controlled remotely according to the shooting needs in the DR shooting with the device, which solves the problem of atlas atlantoaxial joint shooting difficulty.

The utility model relates to the technical field of surveying and mapping detection, and discloses an adjustable detecting instrument which comprises a connecting plate and a detecting instrument body, an angle adjusting assembly is fixedly installed on one side of the connecting plate, a protection box is fixedly installed on the surface of the angle adjusting assembly, and a bottom plate is fixedly installed at the bottom of the protection box. And a detector body is placed in the protection box, a length adjusting assembly is fixedly installed on the back face of the connecting plate, a fixing plate is fixedly installed on the surface of the protection box, and a lighting assembly is fixedly installed on the surface of the fixing plate. According to the adjustable detecting instrument, through the arrangement of the angle adjusting assembly, when the detecting angle of the detecting instrument body needs to be changed, a limiting cap is unscrewed, a rotating rod is rotated until the detecting instrument body is rotated to a proper angle, the limiting cap is tightened, and then the detecting angle of the detecting instrument body is changed, so that detection of detecting points with different gradients is facilitated; and the practicability of the device is improved.

The embodiment of the present invention relates to the technical field of automobile auxiliary tools, and discloses a tire detection and cleaning tool, including: a sheath, a knob, and a universal tooth; the universal tooth includes a universal tooth body and a curved hook section, and the curved hook section is extended at the bottom of the universal tooth body; the knob and the sheath are threadedly sleeved on the universal tooth body in sequence along the axial direction of the universal tooth body; a first light source facing the curved hook section is installed on the sheath. The tire detection and cleaning tool provided by the embodiment of the present invention has a self-illumination function, and the direction and extension length of the curved hook section are adjustable, which can conveniently detect and clean foreign objects stuck in the rubber surface layer of the tire crown, and can also clean foreign objects such as stones embedded in the tire pattern; it is not affected by the brightness of the environment, and can conveniently use the self-contained lighting device to observe the surface condition of the tire crown, and accurately find small wounds on the crown.

This invention discloses a pyrimethanil hapten, an artificial antigen, and their preparation methods and applications. The structural formula of the pyrimethanil hapten is shown below. The arm introduced in this invention not only possesses an active group but also fully retains the benzene ring and dimethylpyrimidine ring structure of the target analyte, enhancing the recognition site. The pyrimethanil artificial antigen and monoclonal antibody of this invention exhibit high specificity for ELISA detection, with an IC50 rating of [missing information]. 50 The value is 1.97 μg / L, which is better than existing monoclonal antibodies. It can be used in colloidal gold immunochromatography to rapidly and conveniently detect pyrimethanil. The colloidal gold immunochromatographic test strip prepared in this invention has a detection sensitivity of 10 μg / L for pyrimethanil.

The invention discloses a method capable of simultaneously detecting alpha / beta / gamma / n rays, a detector is obtained, the detector comprises a shell, a partition plate is arranged in the shell to divide the interior of the shell into an upper detection layer and a lower detection layer, and a detection opening is formed in the position, corresponding to the upper detection layer, of the shell; a scintillator I capable of detecting alpha / beta rays and a corresponding detection circuit I are mounted in the upper detection layer; a scintillator II capable of detecting gamma / n rays and a corresponding detection circuit II are mounted in the lower detection layer; the detector is arranged in a radiation environment to be detected, a total response curve of alpha / beta rays is obtained by using the scintillator I and the detection circuit I, the ratio of the Prompt part to the Delayed part is obtained by dividing the area of the Delayed part by the area of the Prompt part, signals of the alpha / beta rays are distinguished according to the ratio, and signals of gamma / n rays are distinguished according to the ratio in the same way.