4230 results about "Test chamber" patented technology

The invention discloses a vehicle-mounted boost inductance monitoring simulation test system and a test method thereof. The vehicle-mounted boost inductance monitoring simulation test system comprises a vehicle-mounted power supply simulation module, an accelerated life test module, an environment test box, a fault early warning module and a data analysis and diagnosis module. The actual stress state of the inductor is comprehensively simulated by constructing a power supply simulation model matched with the actual working condition of the electric vehicle and combining a multi-environmental-factor coupled accelerated life test; real-time monitoring and fault early warning of inductive performance degradation are realized by adopting an acoustic emission technology; an inductance fault diagnosis knowledge base and an intelligent reasoning system are constructed by applying big data analysis and machine learning technologies. According to the system and the method provided by the invention, the inductance reliability test efficiency can be remarkably improved, the early warning of inductance degradation is realized, the accuracy and the intelligent level of fault diagnosis are improved, a solid basic guarantee is provided for safe operation of a new energy electric vehicle, and the system and the method have wide application prospects and popularization values.

The invention provides an LED light source uniformity and color deviation detection method, which comprises the following steps: setting environmental parameters of a constant temperature and humidity test box, monitoring the environment in the box in real time through a temperature and humidity sensor, and triggering a temperature and humidity control system to adjust when detecting that the temperature and humidity deviate from a set value; according to the initial color characteristic database, placing an LED light source in the constant-temperature and constant-humidity test box for an accelerated aging test, and obtaining spectral data of the light source at different time points by adopting a spectrum analyzer; calculating chromaticity coordinates, color temperatures and color rendering indexes corresponding to the spectral data at different time points, calculating a color deviation value of the LED light source, and fitting a change curve of the color deviation along with time; and according to an accelerated aging test result of the LED light source, calculating the color maintenance life of the light source in a high-temperature and high-humidity environment, and completing color deviation detection through a color stability uniformity index of the LED light source.

The invention discloses a constant-temperature and constant-humidity test box temperature control system based on a multistage PID algorithm and a control method thereof. The constant-temperature and constant-humidity test box temperature control system comprises an environmental parameter detection module, an in-box parameter detection module and a multistage PID controller, wherein the environmental parameter detection module is used for collecting temperature, humidity and air pressure data outside a test box in real time; the in-box parameter detection module is used for collecting multi-dimensional environmental parameters inside the test box; when the failure of any sensor is detected, starting a fault self-diagnosis module, replacing the data of the failure sensor with a data interpolation method of a side sensor, and recording the deviation compensation amount at the same time. A multi-stage PID control architecture is adopted, and feedforward compensation, parameter adaptive optimization and fault redundancy strategies are combined, so that high-precision and anti-interference control of the temperature and humidity of the test box is realized.

The invention relates to the technical field of humidity compensation, in particular to a humidity gradient compensation method and device for an alternating humidity heat test box. The method comprises the following steps: acquiring test box state monitoring parameters based on a multi-dimensional sensor array; performing spatial humidity gradient distribution analysis on the state monitoring parameters of the test box, performing discrete interpolation fitting, and constructing a three-dimensional humidity gradient trend network; carrying out internal dynamic airflow diffusion analysis on the alternating damp heat test box so as to generate dynamic airflow diffusion data of the test box; carrying out dynamic humidity diffusion path mining on the three-dimensional humidity gradient trend network based on the dynamic airflow diffusion data of the test box, and constructing a dynamic humidity diffusion twin model; acquiring external environment monitoring parameters of the test box; and carrying out environment change association mining on the three-dimensional humidity gradient trend network based on the test box external environment monitoring parameters so as to generate humidity gradient change association data under environment fluctuation. According to the invention, efficient and accurate humidity gradient compensation is realized.

The invention discloses a high-temperature aging test box health state assessment method and device. The method comprises the following steps: acquiring a nine-point temperature measurement signal, a compressor vibration signal and a fan rotation speed signal of a to-be-assessed high-temperature aging test box; performing feature extraction on the monitoring signal to obtain a multi-dimensional feature sequence; inputting the multi-dimensional feature sequence into a pre-trained time convolutional network model to obtain a degradation feature state of the high-temperature aging test box; and under the condition that the high-temperature aging test box is in a degradation state, determining a state degradation curve of the to-be-evaluated high-temperature aging test box based on the probability space point after the multi-dimensional feature sequence mapping and the health baseline in the time convolutional network model so as to determine the health state of the high-temperature aging test box. According to the method for evaluating the health state of the high-temperature aging test box, the health state of the high-temperature aging test box can be accurately evaluated.

The invention discloses a method for monitoring the corrosion capacity of a circulating salt spray test chamber, and relates to the technical field of aluminum alloys. The method comprises the following steps of test preparation, device configuration and environment debugging, test process management, monitoring and recording, corrosion degree evaluation and report arrangement and summarization. The test box comprises a box body, a positioning mechanism is mounted in the box body, a spraying mechanism is mounted at the top end of the inner wall of the box body, the positioning mechanism is located below the spraying mechanism, a lifting mechanism is mounted on the peripheral wall of the box body, and a collecting mechanism is mounted at the bottom end of the inner wall of the box body; by arranging the positioning mechanism, aluminum alloy materials of different specifications can be positioned, meanwhile, aluminum alloy can be turned over and rotated, then the aluminum alloy can be sprayed more uniformly and comprehensively through the spraying mechanism, so that it is ensured that salt mist uniformly and comprehensively covers the surface of a sample, and the quality of the sample is improved. And the accuracy of test data can be improved.

The utility model relates to the technical field of model tests, and discloses a landslide damage simulation test device which comprises a model test box, a rainfall frame, a hydraulic assembly, a plurality of spraying assemblies, a water tank assembly and a constant temperature system. The angle of the landslide model box can be adjusted through the hydraulic machine so as to change the slope of a model test landslide soil body; the multiple spraying assemblies are arranged at the top of the rainfall frame and located over the model test box, the output ends of the spraying assemblies aim at a test soil body in the model test box, the influence of rainfall on landslide slippage is simulated by adjusting the spraying size, and the constant temperature system is arranged at the top of the model test box and used for regulating and controlling the temperature of the test soil body. The constant temperature system is used for measuring the influence of the dry-wet cycle effect on the landslide soil body.

The invention relates to the technical field of temperature control, in particular to an accurate control method and system for a rapid temperature change test box. The method comprises the following steps: acquiring an internal temperature parameter of a test box in a running state in real time based on a multi-sensor array; performing temperature error self-adaptive calibration on the internal temperature parameters of the test box, and constructing a three-dimensional temperature space distribution field; carrying out dynamic temperature transfer evolution on the three-dimensional temperature space distribution field and carrying out test box temperature change situation analysis so as to generate temperature change situation characteristics, and constructing a dynamic temperature change test box twinborn model; carrying out stage-by-stage temperature change rate calculation on a preset test box operation log so as to generate a temperature change state feature of each stage; and performing staged dynamic temperature change simulation on the dynamic temperature change test box twinborn model based on the temperature change state characteristics of each stage, thereby generating temperature change trend prediction data of each stage. According to the invention, rapid and accurate temperature change control of the test box is realized.

The invention relates to the technical field of fault diagnosis, in particular to a fault self-diagnosis system and method for a high and low temperature aging test chamber of a storage chip and computer equipment. The temperature control abnormal index is obtained through the data of the temperature control system sensor, early warning can be performed when the temperature control system has abnormal fluctuation, the performance evaluation basis of the air circulation system is provided by the air system efficiency coefficient, the heating efficiency and the refrigeration coefficient are obtained through the data of the heating and refrigerating system sensor, and the performance of the heating and refrigerating system is evaluated. An electrical stability index is obtained through data of a test system sensor, the operation stability of an electrical system is evaluated, the stability of the electrical system is detected in time, and a fault probability index is obtained through a system entropy increase rate, the electrical stability index, a thermal coupling factor, a wind system efficiency coefficient and a temperature control abnormal index. Therefore, the stability and the reliability of the equipment can be improved, the maintenance cost can be reduced, the use efficiency of the equipment is improved, and the accuracy and the safety of test results are ensured.

The invention relates to the field of environment simulation control, in particular to an environment simulation method and system for a high and low temperature test box. The method comprises the following steps: acquiring initial state monitoring parameters of a high and low temperature test box, performing regional environment parameter division and time point gradient change fitting, and constructing a plurality of regional temperature and humidity gradient change curves; identifying a test object in the high and low temperature test box; performing transient thermal change limit evolution excavation on the test object according to the plurality of regional temperature and humidity gradient change curves to generate a transient thermal change limit curve of the current test object; acquiring a preset test box environment simulation log, performing global temperature change cross period optimization according to the transient thermal change limit curve of the current test object, and constructing a global temperature change optimization simulation period; and executing environment simulation control operation according to the global temperature change optimization simulation period, and collecting high and low temperature simulation environment monitoring data. According to the invention, quick-response, accurate and stable environment simulation control is realized.

The invention relates to the technical field of air pressure control, in particular to an air pressure test box pressure stability control method and system. The method comprises the following steps: carrying out current non-operation state monitoring on an air pressure test box so as to obtain multi-dimensional non-operation state monitoring parameters of the air pressure test box; performing non-running state time sequence change evolution on the multi-dimensional non-running state monitoring parameters so as to generate non-running state time sequence characteristics; acquiring an internal structure diagram of the air pressure test box; performing spatial topology distribution analysis on the internal structure diagram of the air pressure test box based on non-operation state time sequence characteristics, performing three-dimensional point cloud modeling, and constructing a digital twin model of the test box; obtaining a target test scene based on the test log; performing target pressure state analysis on the target test scene, and performing final test scene state mining to obtain final test scene state data; according to the invention, high-controllability and high-precision pressure control of the air pressure test box is realized.

The invention provides an anti-condensation control system for a chip high and low temperature aging experiment box. The anti-condensation control system comprises a sampling module, a control module and an execution module, the sampling module comprises sensors arranged in the high and low temperature test box, the temperature of a high and low temperature area of the high and low temperature test box and the temperature and humidity of a heat preservation area and a normal temperature area are respectively collected, and the collection result of the sampling module is used for the control module to analyze the condensation risk and open or close the anti-condensation system; the execution module comprises an anti-condensation heating belt, a drying compressed air device and an anti-condensation fan, and the execution module executes various anti-condensation measures according to the control of the control module. The invention further provides a fault detection method for the chip high-low temperature aging test box anti-condensation control system, the chip high-low temperature aging test box anti-condensation control system can be effectively monitored, problems of the control system can be found in time, and a control strategy is adjusted. The invention also provides a fault detection method for the anti-condensation control system of the chip high and low temperature aging experiment box.

The invention discloses a submarine floating icebreaking load measurement test device and a submarine floating icebreaking load measurement test method. The submarine floating icebreaking load measurement test device comprises a test box, an ice block clamp, a moving assembly, a lifting assembly, an angle adjusting assembly and an observation assembly. Wherein the ice block clamp, the moving assembly, the lifting assembly and the angle adjusting assembly are all arranged in the test box, the ice block clamp is used for fixing ice blocks, the moving assembly is used for driving the submarine model to move in the horizontal direction, the lifting assembly is used for driving the submarine model to move in the vertical direction, and the angle adjusting assembly is used for adjusting the pitch angle of the submarine model. The observation assembly is used for recording the stress condition and the water outlet posture of the submarine model. According to the test device, the position and posture of the submarine model can be adjusted through the moving assembly, the lifting assembly and the angle adjusting assembly, so that different icebreaking conditions are simulated; and the icebreaking process of the submarine model is recorded through a force sensor and a camera. The invention relates to the field of submarine icebreaking test research.

The invention relates to the technical field of DC / DC power supplies, and discloses a DC / DC power supply function parameter testing method and system and computer equipment, and the method comprises the steps: injecting a preset disturbance signal into an input end of a tested DC / DC power supply through a signal conditioning circuit, and obtaining output voltage response data and output current response data; adopting a dynamic multi-parameter test system and collecting target test parameter data; calculating a characteristic parameter set, and executing voltage-temperature control model predictive control analysis to obtain a control parameter sequence; and controlling the power output value of the electric heating wire, the rotating speed value of the heat dissipation fan and the position value of the electric push rod in the test box body to obtain an intelligent adjustment test environment and generate an aging test result and a test strategy adjustment instruction, thereby overcoming the problem of parameter detection blind areas in a traditional test method, and improving the test accuracy even under the condition that the output voltage is accurately matched with the set value. And the power supply performance abnormity can be effectively identified, and the reliability and accuracy of the test are obviously improved.

A method for a tightness test of a test object filled with a liquid, said test object having an internal pressure which is lower than atmospheric pressure, comprising the following steps: inserting the test object into a test chamber, evacuating the test chamber to a pressure which is lower than the internal pressure inside the test object, drawing off the test chamber residual gas components together with gas components desorbing from a wall of the test chamber and parts of the liquid escaping from the test object through a leak in the latter without any carrier gas being fed to the test chamber from outside, transporting the drawn-off residual gas components together with the parts of the liquid escaped from the test object to a detector, and detecting parts of the liquid escaped through a leak in the test object by means of a detector.

The invention provides a device and a method for testing thermal deformation of a reflector, and relates to the technical field of optical assembly, calibration and detection.The testing device comprises an interferometer, a three-comprehensive test box, a standard plane reflector, first window glass, second window glass and a holographic original, firstly, the thermal deformation of the window glass on the two sides in the three-comprehensive test box is measured; measuring the thermal deformation of the reflector to be measured, analyzing and calculating the surface shape error caused by two times of thermal deformation to obtain the Zernike polynomial coefficient value of the reflector to be measured, and obtaining the surface shape value of the reflector to be measured through fitting analysis, namely the thermal deformation of the reflector to be measured. The problems that in the prior art, the surface shape change condition in the actual load working environment is difficult to accurately measure and the influence of window glass on the reflector to be tested is difficult to accurately measure are solved, the testing precision is improved, and in addition, the surface shape error of the reflector to be tested can be quantitatively analyzed through all Zernike polynomial coefficient values in the testing result.

The invention belongs to the technical field of coal field fire evolutionary analysis, and particularly provides a visual coal field fire evolutionary process analog simulation test device and method. The test device comprises a test bench, a physical similarity model, a fiber bragg grating temperature and stress integrated monitoring system, a multi-gas monitoring system, an image and video monitoring system and a computer analysis system. A plurality of opening frames are sequentially fixed to form test box bodies, the physical similarity model is arranged in the test box bodies, the inclination angle of the test box bodies is adjusted through an inclination angle adjusting mechanism, and the gas supply system and the ignition system are connected between the test box bodies. The fiber bragg grating temperature and stress integrated monitoring system, the multi-gas monitoring system and the image and video monitoring system are respectively in signal connection with the computer analysis system. According to the invention, visualization of coal field fire evolution processes under different conditions can be realized, and real-time monitoring of change rules of a temperature field, a seepage field and a fracture field in the coal field fire evolution processes under different conditions can be realized.

The invention relates to the technical field of air filters, in particular to an experimental system and method for detecting an air filter. The system comprises a support frame used for keeping the stability of the experiment system; the test chamber adopts a vertical test channel pipeline, the top and the bottom of the test chamber are respectively provided with a cylinder used for assembling and disassembling an air filter and an absolute filter, and the downstream of the test chamber is provided with double gas sampling ports which are used for separately sampling particulate matter and gas filtering performance tests; the fan subsystem is arranged above the test chamber and is used for simulating air flow under a working condition; the sensor module is used for monitoring various parameters in the testing process in real time; and the data acquisition and processing sub-module is used for receiving the data of the sensor module, analyzing and processing the data and generating a test report. According to the technical scheme, the detection precision can be improved, the test process is simplified, and the filter performance is comprehensively evaluated.

The invention relates to the field of temperature regulation and control, in particular to an intelligent regulation and control method and system for the temperature of a test box, and the method comprises the steps: calculating an optimal disturbance range in a simulated annealing algorithm, and obtaining the temperature in the test box in a next time period through the simulated annealing algorithm; the calculation method of the optimal disturbance range comprises the steps that a data set is obtained, the data set comprises multiple pieces of temperature data in the current time period, the dispersion degree of the data in the data set is calculated, the disturbance range optimization factor in the current time period is calculated, and the disturbance range optimization factor is in positive correlation with the dispersion degree. And taking a product of the disturbance range optimization factor and a preset disturbance range as an optimal disturbance range. The method has the effect of improving the calculation efficiency and the control precision of the simulated annealing algorithm.

The invention relates to the technical field of rock mass testing, in particular to a tunnel water-rich fault fracture zone area loading simulation test device and method.The tunnel water-rich fault fracture zone area loading simulation test device comprises a test box, and a partition plate is arranged in the test box; the partition plate divides the test box into a first area and a second area, and the second area is filled with a rock-soil sample; a lateral loading structure; a vertical loading structure; the simulated fault test structure comprises a mounting frame fixedly connected to the partition plate, a driving structure and a simulated fault unit, one end of the driving structure is hinged to the mounting frame, and the other end of the driving structure is connected with the simulated fault unit; the fault simulation unit is hinged to the mounting frame and used for simulating an adjustable fault, and the technical problems that an existing test device cannot dynamically adjust the fault fracture width and the dip angle according to the load effect and cannot perform real-time coupling simulation on a hydrological seepage field are solved.

The invention relates to the technical field of tensile tests, and discloses a building sealant stretching performance test device, which comprises a test box, a first clamp, a loading block, a linear driver and a driving mechanism, a door plate is mounted on the front of the test box; the first clamp is installed at the top in the test box, the loading block is arranged in the test box, located below the first clamp and driven by the linear driver to move up and down, a through loading channel is formed in the loading block, and a cylinder is arranged in the loading channel and driven by the driving mechanism to rotate; a through assembly channel is formed in the cylinder body, and a transversely-arranged guide rail body is installed in the assembly channel. According to the invention, by carrying out stretching, torsion, inclined stretching, tearing stretching, winding stretching and testing in a low-pressure environment on the sealant, the mechanical properties of the sealant under complex working conditions can be comprehensively evaluated, the testing precision and reliability are improved, the actual engineering requirements are met, and meanwhile, the testing safety and environmental protection property are ensured.

The invention discloses a throwing test system for a suspended launching device in a temperature shock environment. The throwing test system comprises a walk-in test box, a throwing frame, a movable hanger throwing device, a locking device, a limiting protection device, a transfer trolley and a throwing buffer recovery tank. By designing the launching test system for the suspension launching device in the temperature shock environment, environmental conditions with climate can be applied to the suspension launching device, transfer can be completed within 1 min, fixed-point launching, free and rapid transfer and stable suspension of the simulated projectile can be achieved, and the simulation projectile can be conveniently and rapidly launched. The device has the functions of installing, transferring and throwing the simulated bomb, rapidly impacting temperature and humidity, safely transferring, recycling and the like, solves the problem of size limitation of throwing of various types of launchers and large-size simulated bombs, and can realize throwing assessment of the suspended launcher in a conventional environment with climate and a temperature impact environment.

The invention discloses a high and low temperature environment test box thermal load verification method and system, and relates to the technical field of environment test, and the method comprises the steps: initializing a target temperature range, a cooling rate, a heating rate, a preset temperature fluctuation range and a thermal load demand, and carrying out the preliminary setting of a thermal load; adjusting a liquid nitrogen adjusting unit in real time by adopting a dynamic optimization algorithm, and adjusting internal thermal load parameters of the test box under the condition of no external thermal load to obtain reference data; based on a self-adaptive control algorithm, dynamically adjusting the matching relationship between the liquid nitrogen release rate and the internal thermal load of the test box, and verifying the operation state of the test box under different thermal load conditions; a self-adaptive thermal load adjusting algorithm is adopted, the relation between the liquid nitrogen release rate and thermal load change is adjusted in real time, and thermal load verification of the test box is carried out according to the states under different load conditions. According to the invention, through the dynamic heat exchange coefficient model and the high-order injection optimization algorithm, the thermal load verification precision of the high and low temperature environment test box is improved.

The invention discloses a multi-dimensional environment coupling aging test box and a self-adaptive control method thereof.The multi-dimensional environment coupling aging test box comprises a box body, a multi-dimensional environment coupling system and a self-adaptive control system.The box body is internally provided with a test cavity, the multi-dimensional environment coupling system is arranged in the test cavity, and the self-adaptive control system is arranged in the test cavity; and the multi-dimensional environment coupling system is connected with the adaptive control system. A multi-physics coupling environment is constructed by integrating four environment simulation modules of temperature and humidity, illumination, vibration and gas. The sensor group acquires environmental parameters (temperature and humidity, irradiance, acceleration and gas concentration) and state data of a test object in real time, and transmits the environmental parameters and the state data to the data processing unit. Based on a multi-physics field coupling model (such as finite element analysis or an empirical formula), the contribution degree of each environmental factor to material aging is calculated, a dynamic control instruction is generated, output parameters of each module are synchronously adjusted through an execution mechanism, and closed-loop control over environmental conditions is achieved.

The invention discloses a multi-dimensional rapid evaluation method for snow-melting agent corrosion resistance of stainless steel, and relates to the technical field of stainless steel performance evaluation.The multi-dimensional rapid evaluation method comprises the steps that sodium chloride, calcium chloride and magnesium chloride are weighed by mass and dissolved in deionized water, acetic acid and sodium hydrogen sulfite are added after dissolution, and the pH value is adjusted to 4-6; performing potentiodynamic polarization scanning and electrochemical impedance spectroscopy testing on the stainless steel sample to obtain pitting potential and impedance modulus; the method comprises the following steps: placing a stainless steel sample in a cyclic corrosion experiment box, carrying out a corrosion experiment under the conditions of controlling the cyclic temperature change of an environment temperature and periodically carrying out cyclic switching of a spraying mode, a humid mode and a drying mode, taking out the sample every set time, and measuring the corrosion rate and the maximum pitting depth; and according to the pitting potential, the impedance modulus, the corrosion rate and the maximum pitting depth, carrying out graded judgment on the corrosion resistance of the stainless steel. According to the method, the corrosion resistance of the stainless steel can be accurately evaluated in a short time.

The invention discloses corrosion resistance test equipment for a skylight cross beam, relates to the technical field of cross beam tests, and aims to solve the technical problems that a corrosion test of a static placement cross beam sample cannot reflect the influence of dynamic stress on corrosion cracks in the cross beam, and particularly whether stress corrosion cracking can be caused in a salt spray environment or not. Comprising a salt spray testing machine, the salt spray testing machine comprises a test box body, a plurality of test rack assemblies are arranged in an inner cavity of the test box body, each test rack assembly comprises a static test rack and a dynamic test rack, each dynamic test rack comprises a rhombic movable rack, and each rhombic movable rack comprises an upper pressing block, a lower falling block, two symmetrically-arranged bearing blocks and four movable rods. A jolting pressing assembly is arranged at the bottom of the upper pressing block. The device has the advantages that the cross beam sample is in a dynamic stress state in a salt spray corrosion test, the stress condition of the cross beam in actual use is truly simulated, and the test environment is highly close to the actual working condition.

The invention discloses a seabed landslide simulation experiment device and method, and relates to the technical field of marine geological disaster simulation, the seabed landslide simulation experiment device comprises a closed test box, and at least one side of the test box is provided with a visual structure; the seabed simulation assembly is arranged at the bottom of the test box, the seabed simulation assembly comprises a bearing part, the gradient of the bearing part is adjustable, and a sediment layer, a trap layer and a storage layer which are sequentially arranged on the bearing part form a landslide mass; a seabed water pressure simulation assembly; a water flow simulation assembly; a pore water pressure simulation assembly; the measuring assembly comprises a camera module and a sensor module, the camera module obtains image information of the seabed simulation assembly through the visual structure, and the sensor module is used for obtaining the pressure condition in the test box and the pressure condition of the landslide mass. According to the seabed landslide simulation experiment device, a complex seabed environment can be truly simulated, so that the prediction accuracy of an experiment result on an actual seabed landslide condition is improved.

The invention relates to the technical field of battery testing, and provides a flow battery bipolar plate flow channel diversion performance testing device, which comprises an intelligent testing galvanic pile, which is composed of a plurality of detachable flow channel units, each flow channel unit comprises a bipolar plate and two flow channel frames, the flow channel frames adopt a modular design, and the flow channel units are connected with the intelligent testing galvanic pile; a plurality of micro pressure sensors, temperature sensors and flow sensors are embedded in the shell; the intelligent liquid path system comprises a plurality of independent liquid path circulating units, and each unit is composed of a liquid tank, an intelligent liquid pump, a liquid supply pipeline and a liquid return pipeline; a plurality of independent test chambers are arranged in the multifunctional shell, and a temperature and humidity control system and an intelligent drainage system are arranged in the shell; and the data acquisition and analysis system consists of a high-performance computer, a data acquisition card, a signal amplifier and analysis software. The problems that in the prior art, the local flow characteristic of the electrolyte on the surface of the carbon felt is difficult to accurately evaluate, and the requirement of optimizing flow channel design on refined data cannot be met are solved.

The invention relates to an atmosphere environment test chamber. The atmosphere environment test chamber comprises a chamber body, a pull rod, a clamp and a pressure balance assembly; the cabin body comprises a main body and a main box cover, the main box cover is connected with the main body to define a test cavity, the test cavity is used for being full of a gas medium, and the main box cover is provided with an operation hole communicated with the test cavity; one end of the pull rod is connected to the stretching piece, the other end of the pull rod penetrates through the operation hole and extends into the test cavity, and the pull rod is driven by the stretching piece to move along the extension direction of the operation hole relative to the cabin body; the clamp is contained in the test cavity and comprises a first connecting piece and a second connecting piece, the first connecting piece is connected to the main body, the second connecting piece is connected to the pull rod, and the first connecting piece and the second connecting piece are used for connecting two ends of a sample; the pressure balance assembly is connected to the pull rod and is used for applying acting force to the pull rod, so that the acting force applied to the pull rod by the stretching piece in the extension direction of the operation hole is the same as the acting force applied to the sample by the pull rod.

The invention discloses a concrete durability coupling experiment device suitable for marine environment conditions. The concrete durability coupling experiment device comprises a test box body assembly, a water return box body, an execution mechanism and a control system, the experiment box body assembly is of a split-mounted sealing structure, and liquid for simulating seawater and a concrete test piece to be subjected to a durability test are placed in the experiment box body assembly; the water return box body is connected with the interior of the test box body assembly through a pipeline, and simulation of the marine environment is achieved through an execution mechanism and a control system. Compared with the prior art, the whole experimental device is linked by adopting the control system and the execution mechanism, so that a closed-loop control system in which all parts work cooperatively is formed, and more accurate multi-element environment coupled marine environment simulation can be generated in the test box body; a reliable indoor coupling environment test means is provided for verifying ocean corrosion behaviors, structural stability, durability and the like of ocean engineering structures, coastal buildings, infrastructures and the like.