59results about How to "Meet different test requirements" patented technology

A preparation and sampling method for rock-like samples for analog simulation of a composite rock formation comprises the following steps: assembling a mould, inserting partition boards in the assembled mould, pouring similar materials into interlayers among the inserted partition boards, and drawing out the partition boards after initial setting of the poured materials so that the multiple layers of poured materials are naturally contacted and condensed into a whole; disassembling the mould after natural contact and condensation of the multiple layers of poured materials, and placing a formed rock-like test cube in water so that the test cube is cured to reach predetermined strength; and finally, fixing the test cube on a special platform which can rotate vertically, and taking standard test samples of different rock formation angles by drilling with a rock sampling machine. According to the method, the mould is easy to process and simple, convenient and easy to operate, and composite rock formation rock-like samples with different sizes and properties, can be obtained.

The invention provides a fluorescent mark immunity test strip detector, belonging to the technical field of fluorescent mark immunity sample test strip detection. The structure comprises an optical system, a testing jig (1), a shell (8), a data collecting system and a control system; wherein the optical system comprises an excitation light source (3), a light filter (4) and a dim light CCD sensor (6); the data collecting system consists of a dim light CCD sensor data collecting circuit and a PC; the control system comprises a light reverse feed back constant light intensity automatic control circuit. Two excitation light source modes are provided in the invention, the excitation of 2-4 types of wave length can be switched, the structure is simple and reasonable, the operation is convenient and the different test requirements can be satisfied; the detailed distribution condition of the two fluorescent mark lines of a testing zone and a quality control zone on the test strip can be attained in one step; the image brightness of the CCD fluorescent mark line can be enhanced; the testing sensitivity can be improved; and the testing period of the test strip is shorter than 1min.

The invention relates to a device and a method for testing the internal frost-heave capacity of compacted soil, relating to a device and a method for testing the frost-heave capacity. The device and the method are used for solving the following problems: the frost-heave deformation in a soil body cannot be tested in the existing frost-heave testing process and the soil body cannot be frosted from top to bottom. The device disclosed by the invention is characterized in that foam plates are uniformly arranged on the inner surface of a square tank; a thermal insulation layer is arranged at the inner side of each foam plate; a soil sample circular tank is arranged in the centre of the thermal insulation layer; a semi-permeable membrane is arranged on the bottom surface of the soil sample circular tank; a water replenishing layer is arranged at the lower end of the semi-permeable membrane; a plurality of temperature sensors are uniformly arranged on the inner side wall of the soil sample circular tank along the axial direction; a sleeve is inserted in the central axis of the soil sample circular tank; and a plurality of probes are uniformly distributed in the sleeve spirally. The method disclosed by the invention comprises the following steps: compacting and forming a test soil sample; fixing the test soil sample; feeding probes; measuring the initial heights of the probes; frosting the test soil sample; recording displacement variation; and calculating the frost-heave rate. The device and the method disclosed by the invention are used for testing the internal frost-heave capacity of compacted soil.

The invention provides a test track dynamic planning method and system for an automatic driving test vehicle, and the method comprises the steps: carrying out the information extraction of an obtainedhigh-precision map of a test field, dividing the map into different types of road segments, and building a test road segment library; based on the information of the test road section library, establishing a basic test library according to test rules, and establishing a danger library and an extreme library according to danger and accident videos screened out in traffic monitoring; and determining a test item by the test vehicle test unit according to the test level, generating a global test path, driving the test vehicle test path according to the global test path, and performing local pathadjustment through a loaded sensing module. According to the technical scheme, through track splicing, the test process is coherent and smooth, the test is efficient, the test result is more systematic and accurate, and the labor and time cost is reduced. Different tested vehicles are tested in a graded manner, and the obtained test data is more valuable. And the test process does not need workersto directly intervene in the test site, so that the test safety is higher.

The invention discloses an engine camshaft standard working condition testing platform. The engine camshaft standard working condition testing platform comprises a driving system, a transmission system, an oil supply system, a rack, a valve loading system and a testing control system, wherein the driving system drives a camshaft to rotate through the transmission system, the oil supply system supplies lubrication to a cylinder cover, the rack is used for mounting each system of the testing platform and the cylinder cover, the valve loading system is used for imposing pressure on a gas exhaust valve and simulating the process of gas exhaust when the gas exhaust valve opens. The engine camshaft standard working condition testing platform can reflect the force condition of a cam under the working condition, and meanwhile, the temperature of lubricating oil is maintained in a temperature in a real working process, and the original performance of the lubricating oil is maintained. The engine camshaft standard working condition testing platform can simulate tests under different engine working conditions, and test the cam and the reliability of the performance of the camshaft in an all-around mode.

The invention relates to the technical field of quality detection and relates to a furniture static pressure fatigue test machine, in particular to a table, bed and cabinet static pressure fatigue test machine which comprises a machine frame and a central controller. A horizontal motor, a horizontal screw rod, a longitudinal motor and a longitudinal screw rod are fixedly installed at the top of the machine frame. The horizontal screw rod is perpendicular to the longitudinal screw rod. The horizontal motor is connected with the horizontal screw rod, a horizontal track is arranged on the lower portion of the horizontal screw rod, the longitudinal motor is connected with the longitudinal screw rod, and a longitudinal track is arranged on the lower portion of the longitudinal screw rod. The furniture static pressure fatigue test machine is used for simulating tests for testing the strength or bearing capacity of each part of furniture under the condition that the parts are subjected to one-time or repeated loads when the furniture is used normally and misused habitually. The table, bed and cabinet static pressure fatigue test machine is suitable for testing mechanical properties of table, bed and cabinet furniture.

The invention relates to a device for testing a gas cylinder by using a computer control moving burette jacket method, belonging to the technical field of gas cylinder quality detection and formed by connecting and assembling a water jacket part, a moving burette part, a pressure detection part, an electric control part and a microcomputer tracking part. The device is characterized by being capable of detecting the liquid level change of a burette, generated by gas cylinder deformation, and being provided with a digital control drive to control the burette position in real time while detecting the liquid level change to ensure that the absolute position of the liquid level in the burette is unchanged. Full deformation and residual deformation are obtained through the burette data change and the residual deformation rate is calculated. The invention solves the problem of easy interference to a weight method by outside conditions, has many hardly avoidable factors of generating errors, such as negative pressure generated by liquid level rise of a weight container, and the like, improves the testing accuracy, ensures that the testing operation is convenient and the result is visual, and is an ideal device for testing the gas cylinder by using the burette hydraulic method.

The invention discloses a high-frequency torsional fatigue testing device and a high-frequency torsional fatigue testing method for hard plastic pieces. The high-frequency torsional fatigue testing device comprises a fixing device, multiple groups of clamp device units, a transmission unit, a torsion and environment monitoring unit, a PLC (programmable logic controller) unit, an angle and frequency control unit, a driving unit and a power supply unit, wherein multiple hard plastic pieces are clamped on the clamp device units respectively; the power supply unit supplies power to the driving unit; the driving unit drives the transmission unit to do reciprocating motion along sliding rails to drive torsion of one end of each of the hard plastic test pieces loaded on each clamp device unit; torsions of the hard plastic pieces and environmental temperature and humidity are acquired by the torsion and the environment monitoring unit; and the PLC unit receives analog signals acquired by the torsion and the environment monitoring unit and outputs a fatigue curve. By the device and the method, multiple groups of test pieces can be tested at high frequency at the same time, parameters can be directly converted into a fatigue strength curve through a system and displayed to a user, real-time printing is supported, and the testing efficiency is improved.

The invention provides a gas cylinder tester with a digital image analysis external measuring method, belonging to the technical field for measuring the quality of a gas cylinder. The gas cylinder tester is formed by the connection and the assembly of a digital camera shooting part, an image analysis software part, a pressure measuring part, an electric control part and a microcomputer tracking part. The gas cylinder tester is technically characterized in that the volume change of the gas cylinder caused by the pressure is measured by means of an image method, and the measurement method is dry measurement and is free of contact. The image of the gas cylinder is processed with the image processing method such as image denoising, fitting, edge measuring and the like; and the deformation quantity is computed with the three-dimensional simulating and modeling of a procedure, i.e. the full deformation quantity and the residual deformation quantity of the gas cylinder, and the residual deformation rate is computed. The gas cylinder tester solves the problem that the other external measuring method is easily influenced by the external condition, breaks through the influence and the restriction of the conventional weighing external measuring method and the correlative gas cylinder water pressure tester to the development of the industry of the gas cylinder to some extent, improves the test precision, leads the test operation to be convenient and a result to be visual, and is ideal equipment for the gas cylinder to perform the external measuring water pressure test.

The invention provides a testing device used for measuring the heatproof performance of an aircraft fuel tank and an application method thereof. The testing device comprises a support module, a fuel tank fixing module, a heater module used for heating a fuel tank and a temperature used for measuring the temperature of the tank body of the fuel tank. The support module comprises support columns and crossbeam units. The number of the support columns is at least three. The crossbeam units are arranged between two adjacent support columns and are in detachable connection with the support columns. The fuel tank is in detachable connection with the crossbeam units through the fuel tank fixing module and is arranged in the support module. The invention provides the testing device used for measuring the heatproof performance of the aircraft fuel tank and the application method thereof, there is no need to arrange a plurality of different testing devices, and the cost is lowered; in addition, the installation position of the fuel tank can be adjusted, so that the testing device can met different test requirements and is applicable to the fuel tanks different in size, and the universality is higher.

The invention discloses a pressure-sensitive-based graphene resonant fiber accelerometer comprising an optical fiber (1), a ferrule (2), an elastic sheet (3), a sealing plug (4), a gas sealed cavity (5), and a graphite film (6). The acceleration measurement is realized by using the internal pressure of the direct sensitive cavity of the graphene film. The ferrule mounted on the elastic sheet directly senses the measured acceleration as a main additional mass and the elastic sheet is driven to make longitudinal displacement, so that the gas pressure in the sealed cavity is caused to change; thepressure is applied to the graphene film to change the in-plane stress, so that the change of the resonance frequency of the graphene film is caused; and the demodulation resonance frequency is detected by the interference light to realize acceleration measurement. With full utilization of the mechanical, optical and resonance characteristics of grapheme, the accelerometer has the outstanding characteristics of high sensitivity, large measuring range, strong anti-interference ability, great easiness in manufacture and installation.

The invention discloses an airborne ultra-short wave antenna pattern UAV auxiliary test system, and aims to provide a test method for solving the problem of radio frequency link and radio frequency compatible wireless related to an antenna of an outfield aircraft under a large maneuvering condition. According to the technical scheme of the invention, the method comprises the steps: according to adifferential GPS ground mobile station built by the unmanned plane, an airborne GPS antenna of an unmanned plane is used to transmits a frequency reference and GPS time to an embedded module and a signal source through a synchronous clock module; the embedded module sends an enable signal generated according to GPS time and position input by an airborne flight control system of the auxiliary unmanned aerial vehicle to the signal source and the airborne data link terminal, the ground terminal remotely controls the waveform of the signal emitted by the auxiliary unmanned aerial vehicle, and hovers or flies around according to the change height of the tested unmanned aerial vehicle; then the flight strategy of the auxiliary unmanned aerial vehicle is flexibly adjusted through the test turntable of the ground station terminal, and therefore, the directional diagram test of the to-be-tested airborne antenna at different pitch angles and azimuth angles is completed.

The invention discloses a simulated device for tire burst wired control. The simulated device for tire burst wired control is arranged on an automobile wheel, the simulated device comprises an electromagnetic valve, wherein the electromagnetic valve is mounted on the automobile wheel through a fixing support and is located on the axis of a wheel axle, an air inlet end of the electromagnetic valve is communicated with a tire, with the axis of the wheel axle as a revolving axis, the electromagnetic valve revolves independently to the automobile wheel and the fixing support, and the electromagnetic valve is connected with a control switch and a power source through wires. According to the simulated device for tire burst wired control, a wired switch controls the electromagnetic valve, thus simulated tire burst can be achieved, the problems that structure is complex and winding is existed in an existing drive-by-wire simulated device are solved, and the problems such as being insensitive, not in time and inaccurate in reaction due to the fact that an existing wireless simulated device is influenced by automobile speed and automobile vibration are further solved.

The invention discloses a method for assisting in testing a large-maneuvering flight state antenna pattern by an unmanned aerial vehicle, and aims to provide a test method for solving the problems ofradio frequency link and radio frequency compatible wireless related to an antenna of an outfield aircraft under a large maneuvering condition. The method is realized through the following technical scheme: by utilizing a differential GPS ground mobile station built by an unmanned aerial vehicle, an airborne GPS antenna of the unmanned aerial vehicle sends a frequency reference and GPS time to anembedded module and a signal source through a synchronous clock module; the embedded module sends GPS time and position data to the signal source and the airborne data link terminal according to an enable signal generated according to GPS time and position input by an airborne flight control system of the auxiliary unmanned aerial vehicle; and the ground terminal remotely controls the waveform ofa signal emitted by the auxiliary unmanned aerial vehicle, the unmanned aerial vehicle changes height, hovers or flies around according to the test requirements, the flight strategy of the auxiliary unmanned aerial vehicle is flexibly adjusted through the test turntable of the ground station, and the directional diagram test of the to-be-tested airborne antenna at different pitch angles and azimuth angles is finished.

The invention discloses a testing device for measuring the vibration transmission property of a buffer material. The testing device comprises a base plate, and four guiding pillars are fixedly installed on the base plate; an upper pressing plate, an upper buffer material sample, a content simulating part and a lower buffer material sample are tightly compressed in each of the four guiding pillars from top to bottom in sequence; each content simulating part is formed by making an upper mass block, a sensor mounting frame and a lower mass block fixedly connected with one another; the upper pressing plate is fixedly connected with the upper mass block; a first limiting structure which is constituted by multiple limiting layers is connected to the four guiding pillars, each limiting layer is composed of four guiding supporting blocks, four supporting shafts and four rolling parts, and the guiding supporting blocks are fixedly connected with the corresponding guiding pillars in a vertically adjustable mode; a second limiting structure which is constituted by four limiting support blocks are further connected to the four guiding pillars, and the four limiting support blocks are fixedly connected with the corresponding guiding pillars in a vertically adjustable mode, and clamp the four corners of the upper pressing plate. By means of the testing device for measuring the vibration transmission property of the buffer material, the stability and effectiveness of testing data are guaranteed, and the repeatability of tests is guaranteed.

The invention discloses a simulation test system and method based on top coal caving. The simulation test system comprises a base, a platform, a storage box, pushing assemblies, a supporting assembly and a conveying assembly, wherein the platform is connected with the base through a plurality of telescopic devices, and the telescopic devices can do telescopic motion independently or synchronously; the storage box is fixedly connected to an upper end face of the platform and at least provided with a feeding port and a discharging port; the pushing assemblies are arranged in the longitudinal direction of the platform, connected with the platform in a relative movement mode and used for pushing the top coal located in the storage box out of the discharging opening, and weighing sensors used for weighing the pushed top coal are arranged on the pushing assemblies; the supporting assembly is provided with a coal blocking plate, the coal blocking plate is obliquely placed at a lower end of the discharging opening, and a vibration sensor and a sound sensor are arranged on the coal blocking plate; the conveying assembly is arranged at a lower end of the coal blocking plate and used for conveying the top coal in the transverse direction. The top coal caving simulation test system provides a theoretical basis for realizing intelligent coal caving on site.

The invention discloses a method for assisting in testing a large maneuvering flight state radiation pattern by an unmanned aerial vehicle, and aims to provide a test method for solving the problems of radio frequency link and radio frequency compatible wireless related to an antenna of an outfield aircraft under a large maneuvering condition. According to the technical scheme: a differential GPSground mobile station is built by an unmanned aerial vehicle, frequency reference and GPS time are respectively sent to an embedded module and a signal source by an unmanned aerial vehicle-mounted GPSantenna through a synchronous clock module, the embedded module sends an enable signal generated according to GPS time and position input by the airborne flight control system of the auxiliary unmanned aerial vehicle to the signal source and an airborne data link terminal, a ground terminal remotely controls the waveform of a signal emitted by the auxiliary unmanned aerial vehicle, the flight strategy of the auxiliary unmanned aerial vehicle is flexibly adjusted through the test turntable of the ground station according to the height changing, hovering or flying of a test unmanned aerial vehicle, and the radiation pattern test of the to-be-tested airborne antenna at different pitch angles and azimuth angles is completed.

The invention relates to a steam quantity precisely controlled steam generating device for an automobile test. The steam generating device comprises a centrifugal fan, a diffusion chamber, a sealing cover, an insulation water storage tank and a PTC (Positive Temperature Coefficient) heater, wherein the centrifugal fan is provided with an air inlet and an air outlet; the diffusion chamber is connected with the air outlet of the centrifugal fan; steam exhaust holes are uniformly distributed at the lower end of the diffusion chamber; a water injection port is formed in the top of the insulation water storage tank; the sealing cover is screwed on the water injection port of the insulation water storage tank; the bottom of the diffusion chamber is connected with the sealing cover; the PTC heater is attached to the inner side of an inner container of the insulation water storage tank; and a power supply wire is led out of the side surface of the bottom of the insulation water storage tank. The principle of the steam generating device is simple and easy to understand, and the steam generating device is convenient to operate, low in cost, and good in steam generating effect, and is very applicable to defrosting and demisting tests of an automobile windscreen.

The invention relates to the technical field of application software testing, and particularly discloses an application program stability test method and device, equipment and a medium. The application program stability test method comprises the following steps: entering a target test scene corresponding to a to-be-tested application program, and carrying out random pressure test on the target test scene; performing the targeted stability test on the to-be-tested application program, so that the test efficiency is improved; monitoring whether the current test scene is a target test scene or not in the random pressure test process; and if the current test scene is not the target test scene, obtaining an entrance page of the target test scene, and entering the target test scene according to the entrance page. Whether the current test scene is the target test scene or not is detected in real time, and after it is found that the random pressure test jumps out of the target test scene, the target test scene is entered again to continue the random pressure test, so that it is ensured that the pressure test in the target test scene can be completed smoothly, and the stability of the random pressure test is improved.

The invention relates to an automobile electric glass lifter durability testing system which comprises a main control system, a digital control system, an analog control system, a sensor system, a power supply system, a sample fixing system and a cooling system, wherein the main control system is respectively connected with the digital control system and the analog control system; the input end ofthe digital control system is connected with the sensor system, the output end of the digital control system is connected with a sample in the sample fixing system, and the analog control system is connected with the power supply system, the output end of the power supply system is connected with a sample in the sample fixing system, and the power supply system is used for providing power for thesample, and the sample fixing system provides fixed support for the sample and fixes the sensor system and the cooling system, and the cooling system is used for cooling the motor on the sample. According to the invention, not only can the test set be simplified, but also the flexibility of the test system is improved, the power supply control and data acquisition are integrated into the system,and the test efficiency and the test quality are greatly improved.