36results about How to "Convincing test results" patented technology

The invention discloses a water tank test system for simulating the multi-field coupling effect of an offshore structure. The technical scheme is that the water tank test system comprises a water tankmain body, the bottom of the water tank main body is connected with a rock-soil test box, the rock-soil test box is disposed above an earthquake simulation system, water supply and drainage systems are installed on the two sides of the water tank main body, a flow making system is arranged at the bottom of the water tank main body, a wave generation system is installed in the water tank main body, and a truss system is installed at the top of the water tank main body. According to the invention, simulation of all loads of an offshore structure can be realized, and cooperative work among the water tank, the vibration table and the rock-soil test box can be realized.

The invention belongs to the technical field of safety level instrument control system simulation tests, aims to solve the technical problem that simulation test function coverage in the prior art cannot be accurately obtained, and provides a statistical method and device which can effectively increase programmable-logic simulation test function coverage. The statistical method includes: S1, carrying out formalized description on demand items in an HPD (HDL (hardware description language)-programmed device) demand specification book, and establishing a unique number for each demand item according to a predetermined coding rule; S2, establishing a tracking matrix of a to-be-tested system; S3, writing SVA (System Verilog Assertion) code corresponding to each test passing criterion in test regulations; and S4, automatically generating a test result through SVA after execution is completed according to test excitation corresponding to test cases. The function coverage can be visually represented through adding effective tracking and monitoring on a coding link in a simulation test process, and the simulation test process of programmable logic is enabled to be more rigorous and more accord with a requirement of high reliability.

The invention provides a device and method for simulating the stress of an annular tunnel tire-type lining supporting structure. The device comprises a rectangular counterforce frame, a jack is arranged in the rectangular counterforce frame, and a base of the jack is in contact with the inner side wall of the rectangular counterforce frame; the top of a piston rod is in contact with semicircular outline molds through a force transmission device, the two semicircular outline molds are symmetrically and fixedly welded into the rectangular counterforce frame, and tire-type linings are tightly attached to the inner walls of the semicircular outline molds. By adopting the device and method, the actual stress deformation condition of the tunnel linings can be quantitatively simulated, and the theoretical basis is provided for tunnel lining supporting engineering.

The invention relates to a device and a method for detecting quality of liquid dairy products with a near infrared transmittance technique. The device comprises a light source system, a sample chamber, an optical splitting system, a data transmission line, a computer and a display device. The method comprises steps as follows: original optical information of a sample is acquired by the light source system, the sample chamber and the optical splitting system; original spectral data is subjected to pre-processing including data smoothing and filtering, a filtered signal is subjected to characteristic extraction, a characteristic value obtained through extraction is normalized, the normalized characteristic value is subjected to dimension reduction through principal component analysis, and a predication and classification model is established according to characteristic value data of the extracted sample; by means of the obtained model, quantitative determination and category classification for content of fat, protein and lactose in a new liquid dairy product sample are realized. The near infrared spectroscopic analysis has the advantages of being pollution-free, high in measurement speed, accurate, low in cost and the like. Great convenience is brought to quality detection work of the dairy products.

The invention discloses a testing method and device. The method comprises the steps that a command for grabbing data transmitted by a network to be tested is obtained; after the command for grabbing the data transmitted by the network to be tested is obtained, the data transmitted by the network to be tested are grabbed, and data to be processed are obtained; the data to be processed are analyzed, the network to be tested is tested based on different data transmission algorithms, and transmission index testing data of the network to be tested are obtained. The method and device can carry out analysis according to the data which are actually collected in network transmission, and compared with a method for analyzing and testing transmission performance of a network in a simulation mode in the prior art, a testing result obtained through the method is more convincing.

The invention discloses a test device for testing brake pad wear property. The test device comprises a wheel hub, a brake test bed and a control system, and further comprises a console; the console comprises a support system and a function system; the function system comprises a simulated ground module and a lifting device; the simulated ground module comprises a simulated floor, a fixed part anda regulating part; the regulating part comprises a limiting ring, a connecting rod, a guide plate and a threaded rod; a use method comprises the following steps: 1) preparation before test; (2) test.To solve the defects in the prior art, the invention provides a technical scheme of a test device for testing brake pad wear property and a use method of the test device. The device disclosed by the invention is simple, convenient to use, and low in production cost, multiple road conditions can be simulated, the use wear conditions of the brake pad at an upslope, a downhill, a gentle pavement andmultiple road conditions and environments can be tested, thereby guaranteeing the accuracy of a test result.

The invention provides a device for testing spring mechanical property. The device comprises an operation module, a driving module, a measuring module, a control module and an output module. A spring is arranged on the operation module, a dynamic load is implemented to the spring through the driving module, the measuring module collects non-electricity signals generated by the spring, displacement signals of a stress end and voltage and current signals of the driving module, then the obtained spring dynamic load information of the spring and the output feature information of the driving module are output to the control module for storage and analysis processing, then the information is compared with preset a dynamic load threshold value, the control module outputs control instructions to the driving module to achieve controllable output of the dynamic load, meanwhile, stored information is output to the output module for real-time displaying, and the mechanical property parameter of the spring is determined. According to the device for testing spring mechanical property, the dynamic load with the specific mode can be implemented to the tested spring, so that appointed deforming amount of the tested spring is achieved in a one-time movement cycle, testing is flexible, and accuracy is high.

The invention discloses a device and a method for testing the adhesive aggregation performance of a cold patch asphalt mixture. The device comprises a vibration part, a screening part, a transferring part, a weighing part, a main control part and a support protection part, and is specially designed based on the adhesive aggregation performance test of the cold patch asphalt mixture; the screening part, the weighing part and the main control part used for controlling the screening part and the weighing part are arranged in a box body, so that the device for testing the adhesive aggregation performance of the cold patch asphalt mixture can be used for easily collecting the scattered cold patch material, and is capable of quantificationally evaluating the adhesive aggregation performance of the cold patch asphalt mixture by weighing. The device is reasonable in structural design, can be used for testing the adhesive aggregation performance of the cold patch asphalt mixture, and is simple in principle, convenient to operate and easy to popularize.

The invention discloses a test system for simulating the multi-field coupling effect of an offshore wind power rock-socketed pile. The test system comprises a water tank body, the offshore wind powerrock-socketed pile is arranged in the water tank body, the offshore wind power rock-socketed pile is arranged in a rock-soil test box, and the rock-soil test box is arranged on an earthquake simulation system; a turning wind field simulation system is arranged on one side of the offshore wind power rock-socketed pile and can provide a wind field with 180 DEG spatial change; and a wave generation system is mounted in the water tank body, a water supply and drainage system is installed on the side face of the water tank body, and a flow generation system is arranged at the bottom of the water tank body. Simulation of all loads can be realized, 180 DEG real-time conversion simulation of the typhoon wind direction can be realized, and cooperative work among the water tank, the vibration tableand the rock-soil test box can be realized.

The invention discloses detection equipment with a powder fluidity characterization device. The detection equipment comprises a powder cylinder and a powder bed, and the detection equipment is arranged in the powder cylinder and can move up and down along the inner wall of the powder cylinder; a lifting mechanism which is used for driving the powder bed to move up and down; at least one powder hopper which is arranged above the powder bed; a powder scraping mechanism which is arranged above the powder bed and is used for flattening the powder; the powder fluidity characterization device comprises a mass sensor and a display control device, and the mass sensor is used for measuring the weight of powder laid each time and transmitting data to the display control device; the display control device displays the weight of each time of powder spreading and the weight change between different batches of powder spreading; according to the method, the powder fluidity is quantitatively characterized by combining the theoretical density of the powder material, the test shows that the dynamic process is closer to the actual use process, the test result is more persuasive, and meanwhile, the equipment can accurately characterize the fluidity of different 3D printing powder.

The invention provides a device for detecting the vulnerability of a WPA2 protocol, which comprises a control module, a detection module, a verification module and a monitoring module. The control module is used for controlling and scheduling the detection module, the verification module and the monitoring module. The detection module is used for triggering the fragile point of the intelligent device to be tested. The monitoring module is used for monitoring and storing the communication data of the channel where the intelligent equipment to be tested is located. The verification module is used for extracting the data packets monitored by the monitoring module and verifying whether the WPA2 protocol fragile point exists in the intelligent device under test by using the data packets. The invention also provides a method for detecting the vulnerability of a WPA2 protocol by using the detection device, by monitoring the data of the channel where the intelligent device to be tested communicates with the detection device in wireless network, the data packet obtained by monitoring is analyzed, and according to the analysis result, whether the WPA2 fragile point of the intelligent deviceis triggered or not is judged, so as to ensure that the detection result is correct.

The invention provides a vertical type vehicle fog lamp body bracket detection device, which comprises a workbench, and left and right fog lamp bracket detection devices, wherein the left and right fog lamp bracket detection devices are consistent in structure and symmetrically arranged on two sides of the workbench; the left fog lamp bracket detection device comprises five vertical columns fixed on the workbench and five simulation blocks, one simulation block is connected on each of the first, second and third vertical columns, the rest two simulation blocks are fixed on the workbench, the shape surrounded by the five simulation blocks is matched with the shape of a detected product, a detection block connected with the fourth vertical column is further arranged in the area surrounded by the five simulation blocks, and the shape of the detection block is consistent with the shape of a gap preserved in a detected fog lamp bracket. The vertical type vehicle fog lamp body bracket detection device has the beneficial effects of providing uniform standards for product detection, being capable of accurately detecting buckles, positioning holes and the like which are not easy to detect by naked eyes, increasing detection efficiency, being more suitable for fog lamp actual application environment through the vertical detection device design, and making the detection results more accurate.

The invention discloses an application of a peripheral blood exosome miRNA combined marker to preparation of a kit for detecting early liver cancer. The miRNA combined marker is selected from hsa-miR-1307-3p, hsa-miR-221-3p, hsa-miR-323b-3p, hsa-miR-150-5p, hsa-miR-134-5p, hsa-miR-4433b-3p, and hsa-miR-222-3p which are derived from a plasma exosome. Early liver cancer is primary HCC of HBV positive (HBV +) and liver cirrhosis (LC +). According to the invention, the primary HCC of HBV positive (HBV +) and liver cirrhosis (LC +) is detected, so that the pertinence is strong, and the detection result is persuasive.

The invention discloses a wood board surface processing quality control method based on machine vision, relates to the field of machine vision, and is mainly used for furniture production defect detection. Comprising the steps of obtaining a board gray image; performing window sliding on the grayscale image, acquiring gradient direction features and direction inertia distance features of each window, dividing the gradient direction features and the direction inertia distance features into certain grades, and constructing a texture feature matrix of the corresponding window; calculating the filling degree of each window texture feature matrix; calculating a texture feature matrix filling degree mean value of the windows of different sizes, and obtaining the window of the optimal size; obtaining a defect texture noise reduction matrix of the window with the optimal size; fitting two dimensions of the defect texture noise reduction matrix, and calculating a wood grain stripping residue ratio; and plate surface machining defects are judged, and corresponding machining control is conducted according to the corresponding defects. According to the technical means provided by the invention, two defects of template processing can be accurately distinguished, and the detection efficiency and accuracy are improved.

The invention discloses a power battery health state detection method and related equipment. The method comprises the following steps: acquiring a voltage change value of each single battery cell of the power battery under a detection voltage; under the condition that the voltage change value of each single cell is smaller than a first threshold value, the SOC value of the current power battery and the charging DCIR value and / or the discharging DCIR value of each single cell are / is obtained; and judging the health state of the power battery based on the charging DCIR value and / or the discharging DCIR value and the internal resistance range value of the single cell. According to the scheme, the health state of the power battery is comprehensively judged by detecting the short circuit condition and the internal resistance condition of the single battery cells, so that the detection scheme can detect the internal condition of the power battery more specifically and more finely, the detection result is more persuasive, and the detection result can be used for vehicle control and maintenance; and the safety of vehicle driving is improved.

The invention provides a groove type cell tray detection device. The groove type cell tray detection device comprises a foundation, a detection simulation block, an overturning simulation block, a clamping block and detection pins, wherein the foundation is provided with the detection simulation block, the detection simulation block is provided with a detection groove in consistent with detected cell trays in shape and can provide multi-directional detection for products, the detection groove is provided with multiple circular holes and elliptical holes, the circular holes and elliptical holes are respectively embedded with metal nuts internally through injection molding, service life is prolonged, one end of the overturning simulation block is in movable connection with a positioning column, the other end is fixed with the clamping block, and the groove type cell tray detection device is used for detecting slot structures of products. The groove type cell tray detection device is advantaged in that the detection simulation block employs groove design, full-directional detection on the cell trays can be realized, detection areas are large, unified standards are not only provided for product detection, moreover, detection results are more visual, persuasion is more powerful, and operation is simple.

The invention relates to the field of biological analysis, in particular to a method for simultaneously detecting alpha-ketoglutaric acid and L-glutamic acid in an enzymatic reaction liquid. A high performance liquid chromatography method is adopted, the enzymatic reaction liquid is injected into a high performance liquid chromatograph, a C18 column is adopted for separation, and an ultraviolet absorption detector is adopted for detection. The content of alpha-ketoglutaric acid and the content of L-glutamic acid in the enzymatic reaction liquid are detected at the same time, reliable data support can be provided for real-time monitoring of alpha-ketoglutaric acid production, pre-column or post-column derivatization treatment is not needed for sample detection, the detection time is greatly shortened, and the detection result is more accurate.

The invention discloses a scaling test method for a ship ballast water treatment system. The method includes the step that the Csp value of test water before and after electrolysis and the average flow rate of the electrolyzed test water are tested, the step that the test water flows through a hydrogen separation device to be subjected to hydrogen separation after being electrolyzed, the step that the test water flows into a simulated ballast tank to be at a set volume after being separated through hydrogen, and the step that the chlorine yield and the hydrogen content are calculated. According to the method, a filter unit and a neutralizing unit are needless, and thus the needed sea water amount is only 1%-2% of that of a traditional land-based test verification method of the same model. In addition, only the chlorine yield and hydrogen need to be detected in the method, biological indicators do not need to be detected, and therefore the test period is short and verification results can be obtained quickly. Meanwhile, test and verification cost is greatly saved.

The invention relates to the detection field of sound boxes, in particular to an intelligent sound box feedback detection device and a detection method thereof. The invention is designed with an X-direction drive mechanism, a Y-direction drive mechanism and a pneumatic cylinder. When in use, the movement in the three directions of XYZ is accurate, and the three directions of XYZ can be used together to move the speaker to any position. The test range and test accuracy are both It can be guaranteed; drive the second motor, the driving wheel rotates one circle, and the driven wheel rotates 72°, which realizes the intermittent movement in the circumferential direction, and can more accurately obtain the decibel level when the speaker is at a certain angle, making the test results more accurate. have pursuasive power. The present invention is designed with a vibration mechanism, the two contact lines of the second arc-shaped gap have a reaction force on the installation sleeve, and the surface of the installation sleeve is a non-smooth curved surface, which realizes slight vibration during the rotation of the installation sleeve, and can test the vibration of the installation sleeve. Influenced by the decibel size of the sound, the vibration effect generated during the rotation process is uniform, and the test effect is more accurate.

The invention discloses a front edge bending test tool and method. The front edge bending test tool comprises a supporting assembly, a loading end head (7), a rib type plate (10) and a bending load transmission mechanism, wherein the bending load transmission mechanism is installed on the supporting assembly, the two rib-shaped plates (10) are vertically installed on the two sides of the bending load transmission mechanism, and a front edge structure (11) to be tested is fixedly installed on front portions of the two rib-shaped plates (10); the loading end (7) is used for driving the bending load transmission mechanism to compress an upper part or a lower part of the rib-shaped plate (10), so the leading edge structure (11) to be tested is bent. According to the front edge bending test tool, the stress condition of the aircraft leading edge can be truly simulated, the bending performance of the leading edge is assessed, and safety and effectiveness of the leading edge structure are ensured.

The invention discloses a flame thermal shock test observation device and method. The device includes a test rack, wherein the top of the test rack is provided with a work stand, an end portion of thework stand is connected with a multi-shift driving structure, the top of the work stand is provided with multiple uniformly-distributed first clamps, the first clamps are internally clamped with second transparent clamps, front ends of the second transparent clamps stretch out of the work stand, high-speed cameras fixed on the test rack are arranged just below the second transparent clamps, the side of the work stand is provided with a telescopic support, and an inner end of the telescopic support is connected with an aerobic acetylene flame spray gun through a shifting structure. The deviceis advantaged in that observation is more convenient and accurate, the time and the growth rate of cracks when a material is subjected to thermal shock can be accurately calculated, moreover, measurement of multiple sets of data and comparative tests can be more conveniently performed, uniformity of test conditions in many tests is guaranteed, and errors in test results can be avoided.

The invention relates to a sealing performance detection cabinet, a sealing performance detection system and a use method thereof, the sealing performance detection cabinet comprises a cabinet body provided with an operation platform and a top cover above the operation platform, the operation platform is provided with a detection tool base, the detection tool base is provided with a detection tool inner core provided with a gas outlet, and the detection tool inner core is provided with a gas outlet. A telescopic device is arranged on the top cover; the end part of a telescopic rod of the telescopic device is connected with a gauge outer cover with an air inlet; on the basis of the sealing detection cabinet, the sealing detection system is additionally provided with a container internal air pressure sensor installed on the detection tool inner core, a container external air pressure sensor installed in the detection tool outer cover, an indicating lamp, a controller, a gas buffer tank and a hydraulic controller. The invention provides the sealing performance detection cabinet, the detection system and the use method thereof for the container with the outward bending flange at the opening, subjective factors in the existing detection method can be eliminated, the accuracy is improved, the detection index is quantified, the use is convenient and flexible, the applicability is good, and the detection efficiency can be improved.

The invention provides a device and method for simulating the stress of a ring-shaped tunnel tire-type lining support structure. The inner side wall of the piston rod is in contact with the inner side wall, and the top of the piston rod is in contact with the semicircular contour mold through the force transmission device. There are two semicircular contour molds, which are symmetrically welded and fixed inside the rectangular reaction force frame. The semicircular contour mold A tire-type lining is closely attached to the inner wall of the contour mold. The device and method can quantitatively simulate the actual stress and deformation of the tunnel lining, and provide a theoretical basis for the tunnel lining support engineering.

The invention discloses a test device and a method for testing the supporting force of a fluid-filled lining structure in the process of simulating the subsidence of the surrounding rock of a tunnel. Different grades of loads are applied by jacks to simulate the deformation of the surrounding rock of the tunnel acting on the supporting structure of the fluid-filled lining. Different loads; cyclic loading can also be carried out to simulate different pile sinking processes, and the pressure sensor can be used to monitor the magnitude of the force. At the same time, the shape of the magnetic powder can be observed through the shape of the pigment or a layer of magnetic powder sprinkled on the surface of the tempered glass. According to the law of distribution, the stress and stress concentration of the internal filler can be judged; after the completion, the filler is sucked out by suction equipment, and the large load is removed to achieve the effect of load reduction and stress equalization. Different phenomena produce different phenomena, the structure is simple, the cost is low, the operation is convenient, and it has extensive engineering practical significance and application prospects.

The invention relates to a detection device, in particular relates to a detection device for mineral ores, and aims to provide the detection device with the effects of specific detection and small deviation of a detection result for the mineral ores. For solving the technical problem, the invention provides the detection device for the mineral ores. The detection device comprises a U-shaped bracket, a second large belt wheel, a third rotating shaft, a first large belt wheel, a first flat belt, a first small belt wheel, a right bearing block, a second gear and the like; a left bearing block is positioned at the left side of the right bearing block; the third rotating shaft is arranged between the left bearing block and the right bearing block; the second large belt wheel and the first large belt wheel are arranged on the third rotating shaft; the second large belt wheel is positioned at the left side of the first large belt wheel; the second bearing block is arranged on a left wall in the U-shaped bracket. According to the detection device disclosed by the invention, the effects of specific detection and small deviation of the detection result are realized.