1639results about How to "Easy to test" patented technology

The invention discloses a hydraulic system and equipment for testing a hydraulic valve, and belongs to the technical field of hydraulic systems. An oil inlet of the hydraulic pump is connected with the oil tank; the tested valve comprises a plurality of inlets and outlets; one oil way of an oil outlet of the hydraulic pump is connected with the pressure regulating oil way, and the other oil way is connected with an oil inlet of the cartridge check valve; the pressure adjusting oil way adjusts the oil outlet pressure of the hydraulic pump; one oil way inserted into the oil outlet of the one-way valve is connected with a control oil way; the control oil way is used for adjusting the on-off and pressure of control oil of the tested valve; the other oil way is connected with an oil inlet of a proportional speed regulating valve, an oil outlet of the proportional speed regulating valve is connected with an oil inlet of a plug-in mounting type direction valve group, an oil outlet of the plug-in mounting type direction valve group is connected with an inlet of a tested valve, and a control cavity of the plug-in mounting type direction valve group is connected with an electromagnetic directional valve; an outlet of the tested valve is connected with the hydraulic cylinder and the throttling oil way. The hydraulic valve testing device can be suitable for testing high-pressure environments of various types of hydraulic valves.

The invention relates to the technical field of transistor detection, in particular to a quick test method and system for an MOSFET device. The method comprises the following steps: acquiring and integrating multi-source parallel data of the MOSFET device to obtain real-time I-V characteristic data of the device; performing MOSFET device performance prediction based on the real-time device I-V characteristic data to obtain MOSFET device performance prediction data; screening according to the performance prediction data of the MOSFET device to obtain performance data of a primarily screened qualified device; performing adjustment based on the performance data of the preliminarily screened qualified device to obtain an MOSFET device test scheme; acquiring real-time test data of the MOSFET device, and screening qualified devices to obtain performance data of re-screened qualified devices; and performing device test summarization based on the performance data of the primarily screened qualified device and the performance data of the secondarily screened qualified device to obtain an MOSFET device test report. According to the invention, the test period can be shortened.

The invention provides a horizontal sliding bearing test bed, which belongs to the field of sliding bearing safety operation and detection and comprises a main transmission system, a driving system, a radial loading system, a heating system and a hydraulic system. A sliding bearing seat in the radial loading system is inversely fixed on a lower loading plate and is detachably sleeved and fixed on a test bearing, and a test bed applies pressure to the lower loading plate through a hydraulic cylinder to apply radial load to a test sliding bearing. A rotary swing hydraulic oil cylinder in the main transmission system provides power to test the horizontal sliding bearing. The hydraulic system is connected with the rotary swing hydraulic oil cylinder and the radial loading oil cylinder and can achieve closed-loop control over torque and radial loading force. The heating system simulates a high-temperature working condition through a heating box, and a test bearing can be set to be tested at a specific high temperature. According to the invention, large load detection can be realized, working condition simulation is accurate, data such as bearing working torque and service life can be detected, and comprehensive and multi-size adaptability is realized.

The invention provides a dual-pressure-point terahertz chip, a dual-pressure-point terahertz assembly and a preparation method. The double-pressure-point structure of the double-pressure-point terahertz chip comprises a substrate, a signal bonding pad and two ground bonding pads symmetrically arranged on the two sides of the signal bonding pad. The signal bonding pad comprises a first signal bonding pad and a second signal bonding pad, the first signal bonding pad is close to the edge of the dual-pressure-point terahertz chip, and the second signal bonding pad is close to the interior of the dual-pressure-point terahertz chip; the width of the second signal bonding pad is smaller than that of the first signal bonding pad; the two ground bonding pads are special-shaped bonding pads, each of the two ground bonding pads comprises a first part and a second part which are connected with each other, the first part is close to the edge of the dual-pressure-point terahertz chip, one end of the second part is connected with the first part, and the other end of the second part is gradually close to the second signal bonding pad; the minimum distance between the second portions of the two ground bonding pads and the transverse central axis of the second signal bonding pad is smaller than the probe distance, and the maximum distance is larger than the probe distance. According to the invention, the parasitic inductance of the terahertz chip can be reduced.

The invention discloses a system and a method for measuring the weight center of gravity of an unmanned helicopter, belongs to the technical field of unmanned aerial vehicles, and is used for solving the problems of low measurement precision and limited measurement scene of the system for measuring the weight center of gravity of the unmanned helicopter. The measuring system comprises a weight measuring unit, a horizontal measuring unit, a lifting unit and a distance measuring unit. The weight measuring unit comprises four weight measuring assemblies; the horizontal measuring unit comprises a first bevel protractor and a second bevel protractor, the first bevel protractor and the second bevel protractor are located on a main shaft of the unmanned helicopter, the distance measuring unit comprises a horizontal laser instrument and a laser centering tool, the laser centering tool is fixed on the main shaft of the unmanned helicopter, and the laser centering tool comprises an inclined laser centering line. The center line of the laser pair and the center line of the spindle are coplanar. According to the measuring system and the measuring method, the position of the weight gravity center of the unmanned helicopter measured by a four-point weighing method in the horizontal direction can be improved, and testing of different helicopter types and different sites can be met.

According to the large-scale real-time data link layer simulation method, a data link layer simulation system based on an FPGA (Field Programmable Gate Array) is composed of a wireless channel simulation module, a media access control module and a logic link control module; the wireless channel simulation module is used for carrying out modeling simulation on a physical channel transmitted in reality in an FPGA (Field Programmable Gate Array), and the channel distributes control signals to different nodes according to the control signals of the media access control module and transmits high-speed data transmitted by an upper-layer transmitting end back to the media access control module after passing through the simulated channel; the wireless channel simulation module has two functions of quantizing a channel model and quantizing an error rate model; in the quantization implementation of channel simulation, the quantization implementation of a channel model is completed, and the FPGA calculates the SNR in the transmission process through the sending frequency, the distance and the system transmission loss parameters transmitted by the upper layer; and randomly carrying out packet loss on the data according to the PER in quantization implementation of the error rate model so as to simulate real communication.

The invention relates to the technical field of photovoltaics, in particular to a method for testing the grafting rate of silane grafted polyolefin for a photovoltaic packaging adhesive film. Comprising the following steps: S1, extracting a silane grafted polyolefin grafting material in an organic solvent to remove unreacted silane or residual peroxide, washing for multiple times after extraction is completed, and drying for later use; and S2, weighing and recording the mass of the crucible and the extracted silane grafted polyolefin colloidal particles, then putting the crucible filled with the colloidal particles into TGA for calcination, weighing the total mass of the crucible and the sample after calcination is finished, and converting the relative grafting rate by using the ash content of the TGA. According to the invention, the grafting rate of silane grafted polyolefin can be timely and effectively tested and evaluated, so that the grafting stability in the grafting material production process can be truly reflected. Meanwhile, the grafting rate testing method is high in efficiency, simple and reliable to operate.

The utility model provides an energy storage system testing device and an energy storage system, the energy storage system testing device comprises an energy storage testing platform and a cooperative controller, the energy storage testing platform comprises a plurality of energy storage converters PCS and a plurality of energy storage systems BESS; the plurality of PCSs and the plurality of BESSs are in one-to-one correspondence; the multiple PCSs and the multiple BESs are connected in a cooperative control mode so as to control each PCS to output power needed by testing and control the multiple BESs to complete power circulation, and therefore the energy storage system testing device can synchronously test the multiple energy storage systems, the testing cost is reduced, and the testing efficiency is improved. And the limitation that the power required by the test cannot exceed the capacity of the station is relieved through the power circulation of the plurality of BESSs, so that the energy storage system can adopt the charging and discharging power higher than the capacity of the station for testing. In addition, the energy storage system testing device of the utility model can realize testing without accessing a power grid.

The invention belongs to the technical field of vibration isolation testing, and particularly relates to a method for testing the vibration transmissibility of an autonomous excitation active vibration isolator. The method comprises the steps of excitation signal generation and input, vibration signal acquisition, signal coherence analysis and vibration transmissibility calculation. Due to the fact that ultra-precision equipment is sensitive to environmental vibration, an active vibration isolator is usually needed when the ultra-precision equipment is used, and low-frequency vibration such as ground vibration is isolated. In order to evaluate the vibration isolation performance of the active vibration isolator, the vibration transmissibility of the active vibration isolator needs to be tested and analyzed. According to the test method, an actuator and a sensor of the active vibration isolator are adopted, and an additional excitation device and a test sensor are not needed. The method provided by the invention is simple and convenient to implement, short in time consumption and good in test effect, and can solve the technical problem of testing the vibration transmissibility of the active vibration isolator.

The utility model provides an architectural membrane structure performance testing device for simulating a corrosion environment. The architectural membrane structure performance testing device comprises a membrane material tensioning device, an artificial corrosion simulation device and a data acquisition system, the membrane material tensioning device is used for fixing a to-be-tested building membrane material and applying tensioning force to the membrane material during testing; the manual simulation corrosion device comprises a control module, and a booster water pump and an ultraviolet lamp tube which are connected with the control module; the control module simulates the corrosion and aging environment of the membrane material by quantitatively switching on and off the booster water pump and the ultraviolet lamp tube during testing; the data acquisition system comprises a laser displacement sensor, and when the building membrane material with the mark point deforms in the simulated membrane material corrosion and aging environment, the laser displacement sensor monitors the deformation amount corresponding to the mark point and forms test data; the tension force and direction of the membrane structure can be accurately controlled, long-term corrosion is carried out after tension is completed, and accurate mechanical property analysis and evaluation are carried out on the safety performance of the membrane structure before and after corrosion.

The invention provides a device and a method for universally testing the performance of a silicon optical chip and a gyroscope. The device comprises a chip and gyroscope measurement and control module, an external light source module, an external phase modulator, an optical fiber loop and a light source module, wherein the chip and gyroscope measurement and control module comprises a driving and temperature control unit, a power supply control unit, an electric switch control unit, an optical switch control unit, a signal generation unit and an acquisition and control unit and is used for testing instruction processing and data processing, and the light source module is used for providing stable optical power input for a silicon optical chip without a light source. The analog electric switch controls the signal generation unit to output signals which are respectively applied to the phase modulator on the silicon optical chip or the external phase modulator, and the four optical switches form three test channels and are communicated with the external phase modulator and the optical fiber loop to form a gyroscope optical path. According to the invention, the universal test of the performance of different types of silicon optical chips and gyroscopes can be realized, and the accuracy and timeliness of the test are ensured.

The utility model relates to a pilot test device for high-voltage electrostatic modification of crude oil, which is characterized in that the pilot test device for high-voltage electrostatic modification of crude oil is skid-mounted and is arranged above a movable underframe; the utility model discloses a crude oil high-voltage electrostatic modification pilot test device which comprises a detection meter, a constant-temperature assembly, a stirring kettle, a delivery pump, a high-voltage processor, a high-voltage power supply, a crude oil collector, a control electric box and an electromagnetic valve, by using the skid-mounted crude oil high-pressure modification experimental device, in oil pipelines with different viscosities or contents, the three different forms of high-pressure processors also improve the variable condition of the test, the actual use effect of the high-pressure processors in various forms is analyzed, and the overall test efficiency of the experimental device is improved.

The invention discloses a hardness testing device for cured resin for dental implant molding, and relates to the technical field of resin hardness testing. Comprising a test installation part, a driving butt joint part is installed on the test installation part, and a closed butt joint part is installed on the test installation part; the closed butt joint piece is used for driving the butt joint piece in a negative pressure suction mode. The interior of the driving butt joint piece is used for injecting resin; an adhesive force detection piece is mounted on the test mounting piece; the adhesive force detection piece is used for upwards moving and jacking the cured resin; a middle curing test piece is mounted on the adhesive force detection piece; the grinding control piece can be used for grinding the surface of the resin when the hardness of the resin is detected, so that the detection surface of the resin is vertical to the hardness detection ejector pin, and the accuracy of a detection value is ensured; the problem that an existing cured resin hardness testing device for tooth implantation forming is inconvenient to automatically control a hardness needle to be perpendicular to a resin detection surface during resin hardness detection is solved.

The invention relates to a tiltable ducted fan testing device. The tiltable ducted fan testing device comprises a supporting rack, a telescopic device, a transmission rod and a multi-dimensional force sensor, the telescopic device is hinged to the supporting rack, the output end of the telescopic device is hinged to one end of the transmission rod, the other end of the transmission rod extends upwards, the end is located above the supporting rack, and the middle of the transmission rod is rotationally arranged on the supporting rack. The multi-dimensional force sensor is arranged at the end, away from the telescopic device, of the transmission rod, and the bottom of the ducted fan is installed on the measuring face of the multi-dimensional force sensor. The testing device can continuously adjust the testing angle of the ducted fan at any time, guarantees the accuracy of a measurement result, and is wide in application scene.

The invention relates to a testing device and method for a controllable commutation converter valve. The device comprises a current source circuit which is used for providing on-state current for a controllable commutation converter valve under the condition that the controllable commutation converter valve is in an on state; the voltage source circuit is used for providing commutation voltage for the controllable commutation converter valve when the controllable commutation converter valve is in a turn-off state; the active turn-off circuit is used for providing turn-off test current for the controllable commutation converter valve; and the processing module is used for respectively controlling the working states of the current source circuit, the voltage source circuit and the active turn-off circuit, simulating a target test working condition for the controllable commutation converter valve, and collecting electrical parameters of the controllable commutation converter valve under the target test working condition. By adopting the device, a single working condition or a mixed working condition can be simulated for the controllable commutation converter valve, and a mixed operation test can be carried out.

The utility model provides a cable tension testing device for cable processing, which relates to the technical field of cables and comprises a device body, a bidirectional threaded rod is movably inserted into the inner surface wall of the device body, a first motor is fixedly inserted into the inner surface wall of the bidirectional threaded rod and one side of the outer wall of the device body, and a second motor is inserted into the inner surface wall of the bidirectional threaded rod and one side of the outer wall of the device body. The output end of the first motor is fixedly connected with one end of the outer wall of a bidirectional threaded rod, the two threaded outer surface walls of the bidirectional threaded rod are rotationally sleeved with moving frames, a second motor is started to enable two lower locking blocks to rotate, the fixed part of the cable can be rotated in the rotating process, and torsion is generated to bend the cable; at the moment, the part in the center of the cable is pulled due to the torsion, so that the tension test is performed on the cable for the second time, the tension test is performed on the cable, the torsion test is performed on the cable, and the performance of the tested cable is further improved.

The invention discloses an E3 ubiquitin enzyme mutant as well as modification and a protein targeted degradation system and application thereof, and particularly relates to a series of targeted protein degradation enhanced E3 ubiquitin enzymes (Trim21-N) and a modification method thereof, the E3 ubiquitin enzymes (Trim21-N) are obtained by modifying a wild type Trim21 (wtTrim21) protein structural domain, and the E3 ubiquitin enzymes comprise Trim21-a, Trim21-b, Trim21-c, Trim21-d, Trim21-e and Trim21-f. The efficiency of degrading the target protein through the ubiquitin proteasome is remarkably improved, and the method has the characteristics of strong endogenous and exogenous universality, high specificity, ubiquitin proteasome dependence, low cytotoxicity, strong cell compatibility and the like on the degradation of the target protein. The invention provides E3 ubiquitin enzyme (Trim21-N) based on a targeted protein degradation enhancement version and an exogenous fluorescence report degradation system of the E3 ubiquitin enzyme (Trim21-N), preferably Trim21-e with the optimal degradation effect, and the E3 ubiquitin enzyme (Trim21-N) is named as delta Trim21. The invention further provides an endogenous protein degradation system based on the delta Trim21. The method has the characteristics of high specificity, rapidness and small module, so that the method can be used for researching various biological and disease mechanisms, including the fields of cell targeted therapy, cell mechanism exploration, genetic engineering and the like.

The utility model relates to a mask tension test device which comprises a base, one side of the top of the base is fixedly connected with a vertical plate, one side of the top of the vertical plate is fixedly connected with a first electric telescopic rod, the tail end of the first electric telescopic rod is fixedly connected with a mounting plate, and the top of the mounting plate is fixedly connected with a second electric telescopic rod. The end of the second electric telescopic rod is fixedly connected with a metal plate, the bottom of the metal plate is fixedly connected with a stamping head, and one side of the top of the metal plate is fixedly connected with a heating box. Meanwhile, the clamping frame can clamp different positions of the mask, the tensile property of the mask can be more comprehensively tested, hot air can be continuously blown to a test area by arranging the heating box and the air supply pipeline, and the tensile property of the mask at different temperatures can be conveniently tested.

The invention provides a water three-phase point reproduction device. The structure of the water three-phase point reproduction device comprises a box body part, and a heat dissipation part is arranged in the box body part; the water container part is movably arranged in the box body part, and the water container part is in heat conduction connection with the heat dissipation part; the disturbance system is arranged in the box body part, and the disturbance system is connected with the water container part and used for driving the water container part to move; and the temperature measurement and control system is arranged in the box body part and is used for measuring and controlling the temperature in the water container part. The water three-phase point reproduction device can solve the problem of how to realize water three-phase point reproduction under the microgravity condition.

A safety tool insulation resistance tester includes a handheld host housing, a working circuit board, a charger and electrodes, wherein the electrodes are semi-encircling structures; the working circuit board, its main board is composed of MCU, AD acquisition input, shaping filter input, resistance sampling input, relay switching sampling range, high voltage wiring L end, low voltage wiring E end, buzzer circuit and LCM interface, and its control board is composed of relay switching high voltage output, power switch, start / stop switch, alarm gear selection, one-button power on / off circuit, step-down and power supply circuit and charging interface circuit. Its advantages are small size, good safety, high measurement accuracy, only one person holding the tester can measure the insulation resistance of the insulating rod, the measurement is carried out automatically, and the measurement results are displayed on a large-screen LCD; in addition, the insulation resistance tester increases the measurement contact surface of the electrode, can realize the continuous sliding test of the insulating rod, and the test can completely cover the surface of the insulating rod.

The embodiment of the invention provides a chip adjusting and testing device and method, and the device comprises a communication control module which is used for connecting a chip with a PC end operation platform; the PC end operation platform is provided with an automatic test module and is used for calling an automatic use case interface through an interface and editing automatic use case parameters so as to test a chip according to an automatic test case, and the PC end operation platform is also provided with a user-defined use case mode and is used for identifying a control keyword, calling a user-defined use case development sub-interface and developing the chip according to the user-defined use case development sub-interface. A user can edit the user-defined use case to generate a user-defined use case interface, so that the chip is subjected to a user-defined test according to the user-defined use case interface; and the instrument control module is used for calling a corresponding test instrument according to the test instrument type input by the PC end operation platform so as to detect the chip and generate test data. The problem that some temporary or sudden test requirements in the chip test process are difficult to meet is solved, and the effect of conveniently testing the chip according to the requirements of a user is achieved.

The utility model provides a plantar pressure analyzer which comprises a weighing plate and a data processor arranged on one side of the weighing plate, an unwinding assembly and a winding assembly are fixedly arranged on the top face of the weighing plate, and the unwinding assembly and the winding assembly are located on the side close to the data processor and the side away from the data processor respectively. An unwinding roller is rotationally connected in the unwinding assembly, a dustproof film is wound outside the unwinding roller, a winding roller is rotationally connected in the winding assembly, one end of the dustproof film extends in the direction of the winding roller and is wound on the winding roller, and a power part used for driving the winding roller to rotate is fixedly arranged on one side of the weighing plate. Through the arrangement of the unwinding roller, the winding roller, the dustproof film and the power part, the dustproof film at the top of the weighing plate is updated once a test is completed, so that the problem of foot bacterial cross infection is avoided, the dustproof film is attached to the top surface of the weighing plate through the arrangement of the pressing roller, a tested person can conveniently carry out the test, and the test efficiency is improved. And interference on the test is avoided.

The invention relates to the technical field of data mining, in particular to a method and a system for generating a printed circuit board design drawing. The method comprises the following steps: obtaining customer demands, structuring the customer demands into circuit board design demand data, and then carrying out mode clustering to obtain design demand mode data; acquiring a historical design log, performing circuit board hierarchical design clustering based on the historical design log to obtain historical hierarchical design data, and performing wiring structure topology analysis to form a wiring structure model set; quantifying a wiring demand, obtaining wiring demand data based on demand mode data, and matching the hierarchical wiring structure model set to form a matching model; the layout component is used for carrying out component layout on the matched wiring structure model, generating component layout data and planning the direction of a signal line to form a hierarchical structure model; and performing electromagnetic interference simulation, optimizing the hierarchical structure model based on simulation data to balance heat flow, and finally generating a circuit board design drawing. The design efficiency of the circuit board can be improved.

The invention discloses a rotor torsional vibration testing device for an automobile generator rotor, and relates to the technical field of generator rotors, the rotor torsional vibration testing device comprises a bottom plate, four corners of the bottom plate are provided with mounting holes, the top surface of the bottom plate is fixedly provided with a console, and the middle position of the top surface of the bottom plate is fixedly provided with a processing table. Side seats are fixedly connected to the two sides of the top of the machining table, a pair of fixing rods are fixedly connected between the side seats, a supporting rod is fixedly connected to the rear side of the top face of the bottom plate, a sleeve seat is rotationally connected to the top of the supporting rod, one end of the sleeve seat is fixedly connected to a supporting plate, and the other end of the sleeve seat is fixedly connected to a clamping plate. And a sensor is fixedly mounted at the top position of the supporting plate. The rotor testing device is reasonable in structure, the rotor can be placed through the adjusting assembly, and then the rotor is tested through the positioning assembly and the driving assembly.

The invention provides a water-rich environment rock shear force testing device, and belongs to the field of rock shear tests. Comprising a left half box body and a right half box body which move mutually and can be spliced into a box body, the inner bottom walls of the left half box body and the right half box body are obliquely arranged, a sediment storage box communicates with a stirring box through a communicating pipe, the stirring box further communicates with a water inlet pipe, the water inlet pipe communicates with the stirring box and the box body, and the water outlet end of a water outlet pipe communicates with the stirring box. The water inlet end of the water outlet pipe is communicated with the box body, an experimental sample is installed between the lower shear box assembly and the upper shear box assembly, the upper shear box assembly provides shear force for the upper shear box assembly, and the lower shear box assembly provides shear force for the lower shear box assembly. When a test is started, the left half box body and the right half box body move in opposite directions, so that the space for loading an experiment sample is increased, the test is facilitated, sediment can be added into the stirring box through the sediment storage box, and after water and the sediment are mixed, the experiment condition under the water quality state containing impurities can be simulated.

The invention discloses a multi-storage-location aging test device, and relates to the technical field of new energy battery pack testing. The multi-storage-location aging test device comprises a base, the top of the base is fixedly connected with a test mechanism, and the outer wall of the base is fixedly connected with a U-shaped bin. According to the multi-storage-location aging test device, the flowing assembly is matched with the moving assembly, a heater generates heat, a fan blows airflow to perform all-dimensional uniform temperature rise on a battery pack in the test bin through an airflow hole, an electric sliding block drives the heater and the fan to change the airflow direction through the arc-shaped design of a sliding rail, and multi-angle temperature rise is achieved; the device can place a plurality of battery packs into the test bin to be tested, the test efficiency is improved, meanwhile, the electromagnetic mechanism is used for heating the side face of the test bin, the heater is combined with heat conduction of the bottom of the test bin, comprehensive heating of the battery packs is achieved, and the reliability of the test result is ensured.

The invention relates to the technical field of slope model tests, in particular to a loading device and method for a locking type rock slope model test.The loading device comprises a base, a movable seat, a locking type rock slope model, a lever unit, a weight loading unit, a pressing plate and an adjusting assembly; starting a first lifting component to adjust a proper height; the weight is increased by the weight loading unit to drive the lever unit to rotate; according to the locking type rock slope model testing device, the pressing plate moves downwards, meanwhile, the rotating component is started, the angle of the pressing plate is adjusted, and a loading test is carried out, so that the pressure applying angle and height of the test can be adjusted, the use flexibility is high, the locking type rock slope model testing device is suitable for the loading requirements of locking type slope models of different sizes under various test working conditions, and the locking type rock slope model test can be carried out more conveniently.

The embodiment of the utility model discloses a device for measuring the bending form of an endoscope. The device comprises a base; the displacement measuring assembly is installed on the base and connected with a traction rope of the endoscope to measure the moving stroke of the traction rope; the pulling force measuring assembly is connected with a pulling rope of the endoscope so as to measure the pulling force applied to the guiding joint by the pulling rope; the bending radian measuring assembly is mounted on the base and is used for measuring the bending radian of the guide joint; and the clamping assembly is mounted on the base and is used for clamping the endoscope. The measuring device can directly measure key parameters such as the pulling force and the stretching length of the pulling rope and the bending angle of the guiding joint when the endoscope moves, real and accurate data can be provided for follow-up endoscope movement analogue simulation, and meanwhile the measuring device is simple in structure and convenient to operate. The device is suitable for measuring endoscopes with different external diameters and lengths.

The invention provides a video service pressure testing method and system and electronic equipment, and relates to the technical field of testing, and the method comprises the steps: determining a testing target and a testing demand, and configuring and adjusting a virtual server resource according to the testing demand; configuring a video stream generation module to simulate the generation of a video stream, and setting equipment registration information, an access protocol, a serial number rule and a reconnection mechanism; starting a video stream processing module to receive and process the video stream, and performing a performance test; monitoring performance data of the server in real time, and generating an analysis report; and identifying a performance bottleneck according to the performance data and the analysis report obtained by monitoring, adjusting test parameters or optimizing service performance, and carrying out loop iteration test until a predetermined performance requirement is met.

The invention relates to a gas meter leakage detection device and a detection method thereof. The detection device comprises a vacuum box, a vacuumizing device, a gas charging device, a helium detection device, a gas infrared thermal imaging device, a control valve, a pressure sensor and a pipeline for connection. The detection method comprises omnibearing detection from large-scale leakage to tiny leakage, and the accuracy of the gas meter under different leakage degrees is ensured. Large-scale leakage is recognized through pre-vacuumizing and pressure maintaining testing, then low-pressure helium and high-pressure helium are used for filling, the actual working environment is simulated to detect medium-scale and small leakage, and therefore the detection result is more comprehensive and reliable. By means of the high permeability characteristic of helium, high-precision detection equipment and an automatic control system are combined, and it is ensured that each step in the detection process reaches extremely high precision. Meanwhile, the gas infrared thermal imaging technology and the image enhancement technology are adopted, the leakage process can be completely recorded, and accurate positioning of leakage points is achieved.