80results about How to "Guaranteed detection effect" patented technology

This invention relates to the field of viscosity detection technology, and discloses a rotational viscometer and a method for detecting surfactant viscosity. The invention utilizes a multi-axis leveling mechanism to ensure the horizontal state of the detection mounting frame and the rotational drive mechanism during position adjustment. The rotational drive mechanism outputs a rotational speed through a drive connector, which rotates within the protective frame to detect the viscosity of the surfactant in the measurement container. The leveling of the rotational drive mechanism effectively prevents rotor offset during rotation, thus ensuring the accuracy of the viscosity of the solution obtained from the rotor's output rotational speed. Furthermore, the protective frame ensures that the rotor's rotation occurs within the frame, limiting the detection space and enabling more efficient acquisition of the solution's viscosity.

The invention discloses a joint sorting QR decomposition method and related device for multi-antenna detection, and belongs to the technical field of multi-input multi-output signal detection, and the method comprises the steps: initializing an orthogonal matrix and an upper triangular matrix; acquiring a channel matrix H; extracting candidate columns from residual columns in the channel matrix H based on the sum of residual energy and self energy joint weighting, updating an orthogonal matrix and an upper triangular matrix according to the candidate columns until all columns in the channel matrix H are traversed, and obtaining a final orthogonal matrix and a final upper triangular matrix; and taking the final orthogonal matrix and the upper triangular matrix as a joint sorting QR decomposition result for multi-antenna detection, the method and the related device can shear out the nodes with the super radius as early as possible, reduce access nodes, and improve the speed of multi-antenna detection while ensuring the detection performance.

The utility model discloses a steel member welding inspection device which comprises an inspection table, moving plates are symmetrically arranged on the inspection table through a moving assembly, rotating clamping assemblies are arranged on the two moving plates, a flaw detector body is arranged on the inspection table through a lifting assembly, a vertical plate is arranged on one side of the middle of the inspection table, and a polishing mechanism is arranged on the vertical plate through an adjusting assembly. According to the utility model, the arranged adjusting assembly is matched with the grinding mechanism, so that the welding part of the steel member can be conveniently ground before detection, welding residues and the like can be removed, the influence of impurities and the like on subsequent flaw detection is avoided, the accuracy is ensured, the grinding block can be ensured to be always in contact with the welding part in the grinding process, and the welding quality is ensured. And the grinding effect is ensured.

This invention discloses a frequency-domain guided multi-scale deformable alignment method and system for UAV target detection. The method first acquires and preprocesses a dataset of UAV aerial images. Next, it improves the YOLOv8 model, performing target detection based on the preprocessed UAV aerial image dataset and outputting the target detection results. Finally, the improved YOLOv8 model is integrated into a pre-configured training environment, using training and validation images from the UAV aerial image dataset for training and validation. This invention significantly enhances the model's ability to perceive small targets, thereby significantly improving the localization and classification accuracy of small targets, reducing detection errors, and improving overall accuracy.

The utility model discloses a multi -angle clamping positioning device for steel cabinet weld joint detection relates to steel cabinet detection device field. This steel cabinet weld joint detection uses multi -angle clamping positioning device including guide rail seat, and the bottom fixed connection of guide rail seat has several groups of positioning suction cup, and the sliding connection of guide rail seat has the adjusting block, and the fixed connection of adjusting block has the ball seat, and the lateral surface of ball seat is equipped with ball groove and inserts into the positioning ball in ball groove, and the fixed connection of positioning ball has the connecting rod, and the installation board is equipped with on connecting rod, and the stable fixation of device is realized through positioning suction cup, and when detecting the inside weld joint of steel cabinet, the convenient quick adsorption positioning is convenient and fast, and then the clamping positioning unit that is convenient and fast to adjust the angle of detection head is cooperated, and the detection head is convenient and fast to position weld joint, and the clamping positioning unit design is cooperated, and the detection of weld joint is carried out at uniform speed, avoids the phenomenon of missing detection, guarantees weld joint detection effect, and it is convenient to detect each position of steel cabinet.

The application belongs to the technical field of application software development test, and discloses an application software development test system with real-time vulnerability detection, which comprises a code real-time collection module, a multi-dimensional vulnerability detection module, a vulnerability accurate positioning module, a vulnerability risk quantitative evaluation module, a dynamic repair guidance module, a data storage module, a visual interaction module and an iterative optimization module, and each module cooperates to form a whole-process closed-loop vulnerability detection and management and control system. The application software development test system with real-time vulnerability detection is adopted, real-time capture, accurate positioning, risk evaluation and dynamic repair suggestion output of the vulnerability are realized, and the software development test efficiency and application program security are improved.

The application discloses a kind of based on image data's track area abnormal detection method and device of machine tool, it is related to image recognition technical field.The method includes: using image recognition algorithm, introduce multi-objective optimization algorithm, build machine tool target detection model, and connect to candidate region segmentation engine and space-time correlation filter engine;Video stream of track area is collected, and pretreatment is carried out, and the image data of continuous frame is obtained;The image data of continuous frame is input to candidate region segmentation engine, and the ROI region of each frame of image data is obtained;ROI region is input to machine tool target detection model, and the detection frame of machine tool target is obtained;The detection frame of machine tool target is input to space-time correlation filter engine, identifies stationary effective target, and carries out abnormal detection to stationary effective target.The application solves the problems of low detection accuracy, difficult model deployment and poor anti-interference ability in the prior art.

The invention discloses a flaw detection device for new material fiber cloth, which comprises a shell, the front part of the shell is provided with a revolving door which can be opened, the inner wall of the shell is fixedly provided with a support plate, the inner wall of the support plate is rotatably connected with a winding drum through a connecting rod, and the circumferential surface of the winding drum is wound with cloth; the device comprises a shell, an irradiation mechanism, the irradiation mechanism is arranged at the top of the shell, the irradiation mechanism comprises a hydraulic cylinder, a mounting plate is fixedly mounted at the output end of the hydraulic cylinder, and a lamp is mounted on the inner wall of the bottom of the mounting plate. As the photosensitive sensors at the corresponding positions are mounted at the beginning, the device can be directly operated without stopping the machine to edit patterns for comparison, and the detection can be completed only by detecting the light intensity of the photosensitive sensors at the corresponding positions.

The utility model discloses coaxial visual inspection laser cutting equipment, and relates to the technical field of laser cutting equipment. According to the coaxial visual inspection laser cutting equipment, the gas inlet pipe is arranged and connected to the bottom of the laser transmission pipeline, the bottom of the gas inlet pipe is connected with the high-pressure nozzle, the gas inlet pipe can convey gas to a cutting area, and the high-pressure nozzle can spray gas in a high-pressure mode and is used for blowing away slag and smoke dust generated in the cutting process, so that the cleanliness of the cutting area is guaranteed; the cutting quality is improved, and meanwhile visual inspection is facilitated; the objective lens is arranged below the laser transmission pipeline in a sleeving manner, and the bottom of the objective lens is connected with the protective glass in a magnetic attraction manner, so that mounting and dismounting are facilitated, and the objective lens can be effectively protected from being damaged by splashes and dust generated in the cutting process; the turntable is arranged, and light beads with different light sources are arranged in the turntable, so that adjustment can be performed according to workpieces with different materials and colors, and the detection effect is ensured.

This application discloses an electronic atomized product and a method for determining its nicotine content. The nicotine content in this electronic atomized product is no higher than 500 ng / g, simulating the action and visual experience of smoking, assisting users in adapting to the transition phase without nicotine dependence, and aiding in smoking cessation. The method for determining the nicotine content in the electronic atomized product includes: ultrasonic extraction of the sample using ultrapure water; liquid chromatography separation using an alkaline aqueous phase (pH 9.22–10.76) and acetonitrile as the mobile phase; positive ion ionization using an electrospray ionization source; and detection of nicotine characteristic ions using a single quadrupole mass spectrometer in selected ion monitoring mode, achieving highly sensitive, highly selective, low-cost, stable, and reliable quantitative analysis of nicotine content.

The application discloses a frame structure design method of an AFDM system based on adaptive asymmetric guard bands, solves the problem that the frame structure design of the AFDM system under a high dynamic channel is difficult to simultaneously consider the bit error rate of a receiving end and spectral efficiency, and belongs to the technical field of information and communication.The application comprises the following steps: performing frame-level reliability determination according to a demodulation result vector of a current frame, when a corresponding threshold is satisfied, the current frame accesses an adaptive updating process; on the current frame that accesses, candidate pairs of a time delay index and a Doppler index are obtained, an effective path set of the current frame is screened out, a maximum Doppler spread priori and a Doppler energy directionality priori are extracted from the effective path set, a total guard band width of a next frame and a smooth direction factor are determined, asymmetric distribution of the lengths of guard bands on the left and right sides of a pilot is carried out according to the total guard band width of the next frame, the guard bands are relatively widened on the side of a Doppler energy concentration and are relatively shortened on the side of energy sparseness, and a next frame adaptive asymmetric guard band and a data area layout are generated.

The utility model relates to the technical field of oil field development sampling detection, in particular to an oil field development rapid sampling detection device which comprises a moving trolley, the upper end of the surface of the moving trolley is rotationally connected with a winding wheel, and a rope is wound on the surface of the winding wheel; the sampling mechanism comprises a balancing weight fixedly connected to the bottom end of the rope, and the lower end of the surface of the balancing weight is fixedly connected with a storage cylinder; according to the device, the upper end of the inner wall of the storage barrel is plugged through a sealing gasket, it is guaranteed that the sealing gasket is tightly attached to the upper end of the surface of a sampling pipe, and through a first motor, a rotating disc and a through hole, oil liquid at different depths in an oil well flows into the corresponding sampling pipe; according to the mode, the oil liquid is guided into the sampling pipe, so that the normal quantity of the detected sample is ensured, and the detection effect on the oil liquid sample is further ensured.

The invention discloses a high-performance aluminum alloy friction stir welding seam quality detection device, and relates to the technical field of welding quality detection.The high-performance aluminum alloy friction stir welding seam quality detection device comprises a welding seam detection mechanism, a displacement mechanism is arranged at the top of the welding seam detection mechanism, a conveying mechanism is arranged at the bottom of the displacement mechanism, and clamping turnover mechanisms are arranged on the two sides of the conveying mechanism; the weld joint detection mechanism comprises a detector, visual probes are fixedly connected to the two sides of the detector, and an ultrasonic array probe is fixedly installed at the bottom of the detector. Through multi-direction and multi-angle adjustment, the detection angle is increased, the detection range is further increased, the detection effect is guaranteed, the detection efficiency is effectively improved, the overturning function is achieved through control of the overturning motor, a clamped object can be rapidly adjusted, and the detection efficiency is improved. And the multi-surface gap detection function can be realized.

The application discloses a back contact film-coated battery string, a plurality of film pieces, a plurality of battery pieces and a plurality of welding strip groups, the back light surfaces of the plurality of battery pieces are connected in series along a first direction through the plurality of welding strip groups, the plurality of film pieces are covered on the back light surfaces of the plurality of battery pieces, and the area of the film piece is greater than the area of the covered battery piece. The technical scheme can solve the problem that in the EL detection of the back contact film-coated battery string, the side edges of each battery piece in the back contact film-coated battery string are not fixed by the adhesive film, and the corresponding area in the image formed by the electroluminescence is prone to appear shadow, thereby causing the poor EL detection effect.

The invention relates to the technical field of air volume detection, in particular to a portable fire-fighting air volume detection device which comprises a device body, a detection sensor is arranged in the device body, an air channel is formed in the device body, a fan is rotationally connected into the air channel, and a tail box is fixedly connected to the outer side wall of the device body. By arranging the self-checking lubricating mechanism, the running state of the bearing can be automatically detected before use, abnormal conditions such as bearing jamming can be quickly recognized, faults can be pre-judged in advance, the use safety and reliability of the device are effectively improved, lubricating oil can be automatically and quantitatively dropwise added when it is detected that the rotating speed of the bearing is abnormal, and the service life of the device is prolonged. Slight jamming is repaired in time, further deterioration of faults is avoided, the service life of the device is greatly prolonged, mechanical locking and audible alarm are achieved for organic damage which still cannot be recovered after lubrication, and an operator is visually prompted to conduct maintenance in time.

This invention belongs to the field of target detection technology and discloses a lightweight small target detection method for complex coal mine scenarios. The method includes: inputting the image to be detected into a trained ML-YOLO model; obtaining and outputting the target detection results of the ML-YOLO model on the image to be detected; wherein, the ML-YOLO model is an improvement based on the YOLOv11s model, and the ML-YOLO model includes a backbone network, a neck network, and a detection head. The improvement includes: replacing the C3k2_MDConv module in the YOLOv11s model in the backbone network. The C3k2 module is replaced with the LAPConv module to replace the convolutional module in the deep extraction stage of the YOLOv11s model; in the neck network, the C3k2 module in the YOLOv11s model is replaced with the C3k2_MDConv module; in the detection head, the MBPA detection head is replaced with the original detection head of the YOLOv11s model. This invention can significantly reduce the number of parameters and computational overhead while maintaining detection capabilities, and has better lightweight performance than existing technologies, making it better suited to the requirements of model deployment in underground coal mine edge computing scenarios.

The utility model discloses a high purity hydrochloric acid detection automatic titration device of concentration detection technical field, aims at solving the problem that manual titration detects hydrochloric acid concentration in prior art and is easy to exist misoperation and test time is long. Its weighing platform, mixed reactor, support, roots blower, controller and PH sensor, the mixed reactor places on the weighing platform, and the titration container is placed on the support, and the titration container is equipped with the titration tube mouth that points to the mixed reactor opening, and the titration container is communicated through the communicating tube between roots blower, and the detection end of PH sensor is arranged in the inside of mixed reactor, and the PH sensor, roots blower and weighing platform all are electrically connected with controller, the utility model discloses be used for controlling titration speed according to actual detection data in hydrochloric acid titration test, can effectively shorten titration time, improve the detection efficiency, reduce misoperation occurrence probability, ensure the normal advancement of detection test.

This invention discloses a paragraph-level generated text detection method based on deep maximum mean difference (MDD) metric. The method includes: modeling generated text detection as a nonparametric two-sample test problem; designing a deep composite kernel to fuse shallow syntactic features and deep semantic features; training a deep kernel network with the goal of maximizing unbiased estimation of test power; in the testing phase, introducing a Wild Bootstrap mechanism to generate random weight sequences with autoregressive structures; performing a weighted quadratic transformation on the MMD kernel difference matrix; preserving paragraph sentence sequence correlation; accurately estimating the null distribution of the test statistic; and completing the detection by comparing the observed statistic with the test threshold. This method improves sensitivity to high-dimensional semantic differences, alleviates the problem of decreased test power caused by sequence correlation, and can efficiently distinguish between human and AI-generated text. It is suitable for generated text detection in scenarios such as news and academic writing.

The utility model relates to a scanning device for ultrasonic direct flaw detection of a steel plate, which belongs to the technical field of detection and comprises a translation driving mechanism, a lifting mechanism, an operating mechanism and a probe mechanism, the bottom end of the lifting mechanism is arranged on the translation driving mechanism, the operating mechanism is arranged at the telescopic end of the lifting mechanism, and the probe mechanism is arranged on one side of the operating mechanism; the operating mechanism comprises a sliding sleeve and an extending operating rod, the extending operating rod is sleeved with the sliding sleeve, the bottom end of the sliding sleeve is arranged at the telescopic end of the lifting mechanism, one end of the extending operating rod is provided with a probe mechanism, and the other end of the extending operating rod is provided with a balance weight block; the probe mechanism comprises a probe front end seat, a probe clamping seat and an ultrasonic probe, the probe front end seat is of a circular ring structure, the lower end of the probe front end seat is connected with the probe clamping seat through a hollow connecting rod, a rubber clamping block is arranged in the probe clamping seat, and the ultrasonic probe is arranged in the rubber clamping block; the device is simple in structure, convenient to use and high in automation degree, effectively reduces the labor intensity, improves the stability and ensures the detection precision.

This utility model discloses a roller running-in testing device, relating to the field of roller testing. It solves the problem of low efficiency and significant impact on production efficiency caused by manual operation of rollers. The device includes a support with a vertically mounted mounting plate. A through hole is formed at the bottom of the mounting plate, and a positioning shaft is mounted above the through hole, near the top of the mounting plate. A workpiece is detachably mounted on the positioning shaft, with a roller rotatably connected to its bottom, located on one side of the through hole. A drive assembly, mounted on the support and near the mounting plate, includes a drive wheel and a motor. The motor's drive shaft passes through the through hole and connects to the drive wheel, causing the drive wheel to abut against the roller. The motor drives the drive wheel to rotate, thus rotating the roller. The entire roller running-in testing device can efficiently and stably perform running-in testing on rollers on workpieces, reducing maintenance costs and improving work efficiency.

The invention discloses detection equipment for electronic material production, and relates to the technical field of electronic material production. The detection equipment for electronic material production comprises a bottom plate, the top of the bottom plate is fixedly connected with a plurality of supporting plates, the side walls of the supporting plates are fixedly connected with a material groove, one end of the material groove is provided with an inclined section, a capacitor is conveyed in the material groove, and the capacitor comprises a positive electrode pin and a negative electrode pin. The other end of the trough is rotationally connected with a baffle through a rotating mechanism, and the side wall of the supporting plate is fixedly connected with a collecting box. According to the detection equipment for electronic material production, automatic continuous detection can be carried out on a capacitor, meanwhile, before detection, a positive electrode pin and a negative electrode pin of the capacitor are automatically distinguished and straightened, so that the detection efficiency and effect are guaranteed, after detection is completed, the positive electrode pin and the negative electrode pin can be straightened, and the detection efficiency is improved. And the production quality of capacitors is ensured.

This invention provides a fault detection device for an automotive air conditioning compressor, relating to the field of automotive air conditioning compressor testing technology. It includes a housing, within which a control structure and two multimeters are installed. A fan is mounted on the lower side of the housing, and a blowing structure and three wiring structures are mounted on one side of the housing. The wiring structures correspond to the control structure and the multimeters, and the blowing structure corresponds to the wiring structures. Each wiring structure has a connector, a first snap-fit ​​structure between the connector and the wiring structure, an insulation structure inside the connector, and a second snap-fit ​​structure between the connector and the insulation structure. In this invention, by installing the control structure and two multimeters inside the housing, the resistance between the terminals can be detected using the two multimeters, improving detection efficiency. Furthermore, by using the wiring structures for detection, only one wiring is required; by sequentially using different multimeters to test the resistance data between different terminals, rewiring is unnecessary.

This utility model discloses a high-precision differential pressure transmitter, including a mounting plate. A groove is formed in the center of the mounting plate, and an opening communicating with the groove is formed inside the mounting plate. A bidirectional screw is rotatably fitted within the opening, and clamping components are threaded onto both ends of the bidirectional screw. A protective box is mounted on the upper side of the mounting plate, containing the clamping components and the differential pressure transmitter body. A fixing component corresponds to the differential pressure transmitter body. This utility model utilizes a sliding plate that slides within a recessed block, causing multiple teeth to mesh with two sector gears, thereby driving two arc-shaped clamping plates to move closer or further apart. The distance between the two arc-shaped clamping plates can be adjusted according to different pipe sizes, thus clamping and fixing pipes of different sizes, achieving stable support for the differential pressure transmitter body, and effectively reducing the occurrence of pipe bending or damage.

The utility model relates to a kind of auxiliary rotation resistance devices of pusher bar of step-by-step heating furnace, including pusher base, the pusher bar is equipped in the pusher base along pusher length direction, signal detection baffle ring is equipped in the pusher bar, the side of pusher bar is equipped with guide rod along pusher length direction, the signal detection baffle ring is equipped with guide hole, the guide rod is passed from guide hole inside.The utility model is guided rod in the side of pusher bar, and guide hole is set on signal detection baffle ring, so that guide rod is passed from guide hole inside, by the restriction of guide rod, signal detection baffle ring can be effectively prevented with the axis of pusher bar as center of rotation, ensure the detection effect of signal detection switch;Simple structure, convenient to use, low manufacturing cost.

A multi-point positioning device for inductor pressure testing includes a test platform with a bottom support bracket at its base. The bottom support bracket and the test platform are fixed together by welding. A test fixing component, a test mold, is installed on the test platform to fix the inductor for testing. The integrated welded bottom support bracket is combined with the test platform to ensure a stable and reliable overall structure. A drive cylinder, in conjunction with an assembly flange, controls the movement of the inductor detection head. The inductor detection head is used for inductor testing, further ensuring the accuracy and repeatability of the testing. The moving guide rail and fixing screws within the test mold effectively guarantee the accuracy and repeatability of multi-point positioning. The drive cylinder and push rod enable automatic inductor clamping, improving testing efficiency.

The present application relates to the technical field of steel pipe defect detection, and particularly relates to a defect identification method for steel pipe manufacturing, comprising: acquiring steel pipe surface weld image data and determining a weld appearance index according to the image data, wherein the image data comprises a weld width, a weld excess height and a undercut depth; determining the weldability of the steel pipe according to the weld appearance index, determining the reason for unqualified welding according to the average undercut depth of the weld under the condition of unqualified welding; determining an ultrasonic detection strategy according to the defect corresponding rate of the weld width and the weld excess height under the condition of qualified welding, and acquiring a defect characteristic value inside the weld through ultrasonic detection; determining the weldability of the steel pipe manufacturing according to the defect characteristic value, and determining whether the steel pipe meets the preset standard according to the defect area proportion under the condition of unqualified steel pipe manufacturing. The present application improves the accuracy and efficiency of steel pipe defect identification.

This invention provides an automatic SAR target detection method and apparatus based on adaptive feature focusing, belonging to the field of SAR image detection. The method includes: constructing a lightweight EOD-Net; after the backbone network extracts multi-scale features, the latent target perception branch PTBranch outputs a mask to coarsely locate the target region; and using a no-overlap feature map cropping NOFC to iteratively remove overlapping blocks, retaining only non-overlapping target feature blocks for the detection head to regress. During the training phase, a Gaussian-binary hybrid mask supervises PTBranch, and the focus loss and DICE loss are jointly optimized. This invention outperforms comparable methods such as YOLOv11 and Faster RCNN, achieving high-precision and efficient SAR image detection.

The invention discloses an external exciting light source support of a fluorescence spectrophotometer, and relates to the technical field of exciting light sources, the external exciting light source support comprises a device body, the device body is fixedly provided with a support, the support is fixedly provided with a rubber pad, and the rubber pad is fixedly provided with exciting light source equipment. And the exciting light source equipment is fixedly communicated with a condensing lens barrel. The excitation light source device has the advantages that before a sample is detected, light spots of excitation light output by the excitation light source device during operation can be gradually shielded through cooperation of the shading assembly, the adjusting assembly and the multiple shading plates, the light intensity of the light spots of the output excitation light tends to be uniform from the center to the edge, the light intensity uniformity is improved, and meanwhile the light spots can be adjusted according to the size of the light spots of the excitation light. And the initial light spot shading area of the exciting light matched with the plurality of shading plates is adaptively adjusted, so that the detection effect of the device on a sample is improved, and the application range of the device is widened.