1270 results about "Test chamber" patented technology

The invention provides a detachable slurry shield slurry film formation and maintenance test device and an intelligent evaluation method, and relates to the technical field of slurry film formation, the detachable slurry shield slurry film formation and maintenance test device comprises a one-dimensional permeation column assembly, the one-dimensional permeation column assembly comprises an upper top plate, an upper permeation column body, a detachable permeation column body, a lower permeation column body, a lower bottom plate and a pressure gauge; the pressurizing assembly is communicated with the pressurizing through hole of the upper top plate; the pore water pressure monitoring assembly is arranged in the one-dimensional permeation column assembly; a filtrate collection assembly; a detachable permeation column placing ring is arranged in a test box body of the pressure maintaining observation assembly; and the information processing assembly is electrically connected with the pore water pressure monitoring assembly and the weighing mechanism. According to the invention, the test efficiency is improved, and meanwhile, the mud film forming process and the plugging effect are accurately evaluated.

The invention particularly discloses a fractured rock mass grouting three-dimensional visualization test device and method, and relates to the technical field of rock mass engineering. The device comprises a test box body, a liquid inlet and outlet system, a monitoring system and a dynamic water environment simulation assembly, the test box body is made of a transparent acrylic material and is composed of an upper cover plate, a lower cover plate, a front cover plate, a rear cover plate, a baffle and two side cover plates, and a core experiment module is arranged in the test box body; the liquid inlet and outlet system is sequentially connected with the liquid holding device, the peristaltic pump, the valve, the Doppler flow velocity sensor and the test box body through rubber pipes; the monitoring system integrates an image collection unit and a data monitoring unit, an industrial-grade 3D camera and a binocular camera achieve visualization of the displacement process, and a fiber bragg grating pressure sensor synchronously collects fracture pressure data and transmits the fracture pressure data to a computer through a multifunctional data collection module. The device can be used for observing the displacement process of the slurry in the three-dimensional fracture in real time, synchronously monitoring key parameters, adapting to complex test working conditions and providing reliable support for grouting law research.

The utility model belongs to the technical field of test boxes, and particularly relates to a high-low temperature test box with uniform heating. Comprising test cavities which are arranged in a test box at intervals left and right; a placement net plate is embedded in the bottom of the test cavity; the fans are arranged below the placing net plate in a bilateral symmetry manner; the air inlet end of the fan is communicated with the test cavity through the placing screen plate, and the air outlet end of the fan is communicated with the air duct cavity; the air duct cavities are distributed on the left side wall and the right side wall of the test cavity in a bilateral symmetry manner; a spoiler is vertically and obliquely arranged in the air duct cavity, and an air distribution plate is arranged at the air return end of the air duct cavity. According to the utility model, through the arrangement of the spoiler and the air distribution plate in the air duct cavity, high and low temperature airflow with uniform airflow distribution can be provided for the interior of the test cavity, so that the temperature rise rates of different areas are consistent, and the uniform heating effect during product testing is further improved.

The invention belongs to the technical field of fatigue life acceleration test equipment, and particularly relates to an acceleration test device and method for the fatigue life of a rubber corrugated pipe limiting structure, the acceleration test device comprises a base and a heat insulation test box, the bottom end of the heat insulation test box is fixedly connected with the upper surface of the base, and two fixing through holes are formed in the outer wall of one side of the heat insulation test box. The device has multiple environment simulation functions, constructs a composite test environment close to the actual working condition, reflects the influence of different environments on the fatigue life of the limiting structure, improves the representativeness of the fatigue life test result of the rubber corrugated pipe limiting structure, realizes automatic failure judgment through resistance real-time monitoring, does not need manual intervention, and improves the test efficiency. The test convenience is improved, the accuracy of the fatigue life test result of the rubber corrugated pipe limiting structure is further improved, the double-sample synchronous test is realized, the time consumption of the multi-sample test is greatly shortened, and the detection efficiency of the fatigue test is remarkably improved.

The utility model discloses a comprehensive test box which comprises a foundation, a downwards-sunken foundation pit is arranged in the foundation, a concrete bearing base body is poured in the foundation pit, and a first buffer layer, a framework layer and a second buffer layer are arranged between the concrete bearing base body and the foundation pit. The first buffer layer, the framework layer and the second buffer layer are all of a cylindrical structure and wrap the circumferential direction and the bottom of the concrete bearing base body, and the framework layer is provided with a supporting part extending upwards in the vertical direction to form a foundation pit; the vibration table is fixedly mounted at the upper end of the concrete bearing base body through a metal base; the bottom of the test box body is provided with a butt joint window, and the butt joint window is fixedly connected to the supporting part in a sealed mode. The utility model has the beneficial effect of solving the technical problem that the connection sealing difficulty of the large-scale vibration table and the box body is large.

The utility model relates to a rain test box convenient to maintain, which comprises a test box and a test bench fixedly arranged at the bottom of the inner cavity of the test box, a spray head assembly is arranged in the test box, the spray head assembly comprises rotating shafts rotationally arranged at the left side and the right side of the inner cavity of the test box, and a semicircular pipe is fixedly arranged between the two rotating shafts. And a plurality of external thread connecting pipes penetrating into the semicircular pipe are fixedly mounted at the bottom of the semicircular pipe. According to the rain test box convenient to maintain, after a product is placed at the top of the test bed, a water pump sucks water through an extraction pipe, the water enters a filter box through a drainage pipe and is purified by a filter assembly, and the water flows into a semicircular pipe through a hard pipe and a folding pipe, is sprayed out from a nozzle of an external thread connecting pipe and is concentrated at the top of the test bed for a waterproof test; the driving unit drives the semicircular pipe to rotate, multi-directional spraying of the product is achieved, the nozzle blocking risk is reduced through the filtering assembly, and the nozzle can be easily rotated, detached and cleaned when blocked.

The utility model relates to the technical field of power battery testing, in particular to a battery integration testing system. Comprising an upper computer and a battery integration test cabinet. The battery integration test cabinet comprises a cabinet body, a temperature adjusting device, an expansive force acquisition device, an overload test device and a middle computer. An equipment chamber and a plurality of test chambers are formed in the cabinet body, and the temperature adjusting equipment, the expansive force collecting equipment and the overload test equipment are all installed in the equipment chamber; the upper computer is in communication connection with the middle computer, and the middle computer is in communication connection with the temperature adjusting device, the expansive force collecting device and the overload testing device. According to the utility model, the battery testing efficiency is improved.

The invention relates to the technical field of electrical detection, in particular to a multi-stress coupling environment reliability testing method for an electricity consumption information acquisition terminal. Comprising the steps of applying a combined stress field to an electricity utilization information acquisition terminal through an environment test box; acquiring power utilization information acquisition terminal parameters; the method comprises the following steps of: capturing metering pulse response and carrier communication interaction signals of an electricity utilization information acquisition terminal under the excitation of a combined stress field by utilizing an electrical sensor, extracting carrier signal-to-noise ratio data and metering reference drift data, and generating a reference voltage compensation coefficient and an impedance matching threshold value; projecting the carrier signal-to-noise ratio data to an impedance matching threshold value, and constructing a stress failure envelope surface according to a hardware overload protection threshold value; and mapping the communication quality distortion residual vector to a stress failure envelope surface, and calculating a reliability life prediction value. According to the method, a uniform excitation environment is constructed, and performance degradation of different dimensions is uniformly quantified into accumulative stress damage integral, so that the comprehensive anti-interference capability of the terminal in a multi-stress coupling environment can be truly reflected.

The invention discloses a cable laying pulley load performance test device, and belongs to the technical field of pulley performance test. The sliding rails are symmetrically arranged, the placement platform and the bottom baffle are in sliding fit, the detection assembly is located above the placement platform, the placement platform is used for bearing a tackle, the bottom baffle is used for auxiliary supporting, and the detection assembly is used for applying a vertical load. According to the pulley load performance test device for cable laying, by adjusting the relative positions of the placement platform and the bottom baffle plate on the slide rail, supporting and fixing spaces of cable pulleys with different sizes and structural forms can be flexibly adapted; the special-shaped tackle has the advantages that the special-shaped tackle is matched with the lockable sliding block and the self-centering structure, so that the technical problems that the special-shaped tackle is difficult to fix and the loading center deviates are solved, the lateral displacement or overturning of the tackle when the tackle is pressed is effectively limited, and the stability and safety of load performance detection and the accuracy of data are improved.

The invention relates to the technical field of corrosion tests, in particular to environment simulation equipment based on an internal corrosion test, which comprises a test box, a collection box and a water bath box, the test box is fixedly mounted at the top of the water bath box through four supporting blocks, and the four supporting blocks are respectively positioned at four corners between the test box and the water bath box; the medium box enables the spraying assembly to accurately spray a test medium in the box to the surface of a test sample borne by the bearing assembly through the water inlet pipe and the spraying assembly, a corrosion test simulation environment is constructed, the flow sensor collects medium flow signals in real time, and the control module adjusts the rotating speed of the water pump and the opening degree of the electromagnetic valve according to signal feedback. Precise detection and dynamic adjustment of the spraying flow are achieved, the consistency of spraying working conditions of multiple groups of test samples is guaranteed, meanwhile, the water bath box conducts temperature pretreatment on media in the medium box in a water bath heating mode, the water bath box and a thermometer complete cooperative regulation and control of the temperature, precise control of the test temperature is achieved, and the corrosion simulation requirements of different service environments are met.

The utility model discloses a high and low temperature test box, which relates to the technical field of test boxes and comprises a test box, a box cover is arranged on one side of the test box, a movable plate is arranged on the inner side of the test box, and a motor rotating component is arranged at the bottom of the test box. A movable buckle is arranged at the top of the box cover; two pull rods are symmetrically arranged at two ends of one side, close to the test box, of the box cover; a rotating disc part is arranged on the upper surface of the movable plate; the rotating disc part comprises a placement disc; the bottom of the placement disc penetrates through the movable plate to be fixedly connected with a triangular clamping pin. And the vertical projection of the triangular bayonet lock is an isosceles triangle. By means of the structure, parts of different sizes and materials can be driven to rotate, better heating is facilitated, inaccurate test results caused by uneven heating are avoided, the movable plate can be pulled out, then the rotating disc part is pulled out, the parts can be taken out conveniently, and the test efficiency is improved.

The utility model discloses a combined high and low temperature test box, which relates to the technical field of high and low temperature test boxes and comprises a box body and an electromagnet. A box door is hinged to the front side face of the box body, air inlet pipes are installed at the front end and the rear end of the left side face of the box body, exhaust grooves are evenly formed in the rear side face of the box body, two machine bases corresponding to each other left and right are arranged at the bottom end of the rear side face of the box body, the machine bases correspond to the exhaust grooves in position, and fans are placed in the machine bases. A sealing ring adheres to the front side face of the box body, the number of the electromagnets is two, the electromagnets are installed on the right side face of the interior of the box body, and a combination unit is arranged in the box body. According to the combined type high and low temperature test box, to-be-detected pieces of different specifications can be placed by adopting the placement plate which can be adjustably mounted, and meanwhile, the to-be-detected pieces can be dynamically tested by virtue of the rotatable rotating disc, so that the to-be-detected pieces can be combined and mounted according to different to-be-detected pieces, and the practicability of the test box is further improved.

The present invention belongs to the technical field of flutter tests for rotorcrafts, and discloses a ground whirl flutter test system and test method for a rotorcraft. The ground whirl flutter test system for the rotorcraft comprises a hardware part and a software part. The hardware part comprises a rotor test article, a support system, force loading devices, vibration signal sensors, load cells, vibration signal acquisition cards, an industrial control computer, force signal output cards, a power amplifier and load cell signal acquisition cards. The software part of the ground whirl flutter test system for the rotorcraft comprises a rotor force and moment calculation program and a multi-input multi-output force control program running on the industrial control computer. The method can reserve all dynamic characteristics of the aircraft structure, is not restricted by the size of a wind tunnel test chamber section, does not require dynamic scaling of aircraft structures.

The invention relates to the technical field of simulation tests, in particular to a high-temperature energy tunnel thermal environment dynamic simulation test device and method.The high-temperature energy tunnel thermal environment dynamic simulation test device comprises a test box, a centrifugal water pump is fixed to one side of the test box and comprises a detection box communicated with the test box, and multiple sets of circulating pipes are movably arranged in the test box at equal intervals; according to the energy tunnel comparison model experiment device, energy tunnel comparison model experiments under the conditions of different environment temperatures and different water inlet water temperatures are carried out, the circulating pipes are connected with the movable columns in an inserted mode, and after the movable columns are connected with the circulating pipes, the movable columns are connected with the circulating pipes; the circulating pipes move to drive the movable columns to move, the movable columns move to drive the adjusting hands to move, and the adjusting hands move to loosen soil or rocks in the mud storage plate, so that loosening of the soil or rocks on the mud storage plate can be freely controlled while the distance between the circulating pipes is adjusted during working, and the labor intensity of workers is reduced.

The invention relates to the technical field of corrosion tests, in particular to a deep soil environment simulation corrosion test device and method.The deep soil environment simulation corrosion test device comprises a test box, a plurality of opening air channels vertically distributed in soil in a penetrating mode and a heating unit composed of a circumferential heating part and an internal heating part vertically inserted into the soil. Gas is directly introduced into the soil through the perforated gas channel to adjust the oxygen content, the humidity and the chemical environment, the soil temperature is cooperatively adjusted through the heating unit, and dynamic closed-loop control is carried out based on feedback of the sensor. The environment regulation and control actuator is directly implanted into the soil, so that the problems of slow response, large gradient and incapability of simulating the deep low-oxygen compact soil environment caused by external regulation and control in the traditional method are solved, and accurate, rapid and uniform simulation and accelerated experiment on the deep soil corrosion environment are realized.

1. Name of the product in this design: Quick Clip (JQ503Z). 2. Application of this design: Quick-release handles with locking function for test chambers, ovens, drying ovens, constant temperature chambers, luminescence equipment, etc. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 1 3D diagram 1. 5. Design 1 is designated as the basic design.

The invention discloses a device for detecting the humidity of wet particles in gas-solid two-phase flow and a working method thereof, and belongs to the technical field of particle humidity visualization. The feeding module is used for conveying target wet particles to a laboratory; a gas distribution plate is arranged at the bottom of the test chamber, and the wall body is visually arranged; the gas flow module is communicated with the test chamber and provides gas flow for the test chamber through a gas distribution plate of the test chamber; the laser is arranged on one side of the test chamber; the laser is used for irradiating the test chamber; the shooting module is arranged on one side of the test room and is in communication connection with the processing module; the shooting module is used for shooting image data in the laboratory and transmitting the shot image data to the processing module; and the processing module is used for processing the image data to obtain humidity visualization information. The device can determine the humidity change condition of the wet particles in time.

The invention relates to the technical field of asphalt felt base cloth detection devices, and particularly discloses an asphalt felt base cloth temperature change performance detection device which comprises a test box, a box body door is arranged at the upper end of the test box, a temperature controller is arranged on the outer side wall of the test box, a conveying assembly is arranged at the upper end of the test box, and a detection assembly and a clamping mechanism are arranged in the test box; two sets of felt base cloth are placed on the conveying assembly, the conveying assembly can flatly clamp and convey the two sets of felt base cloth into the test box, the clamping mechanism clamps the two sets of felt base cloth and bends one set of felt base cloth, the box body door is closed, the test box is continuously heated or cooled through the temperature controller, and the test box is heated or cooled through the temperature controller. The detection assembly can continuously perform temperature change performance detection on the two groups of felt base cloth, so that the temperature change performance of the felt base cloth can be detected under the conditions of continuous temperature change and bending, and a more comprehensive basis is provided for durability and reliability evaluation of the felt base cloth.

The application relates to the technical field of electrical test boxes, in particular to an electrical switching test box with test protection, which comprises a test box main body, electrode sockets and male plugs. A switching seat is fixedly installed on the surface of the test box main body, a plurality of interface end rows are arranged on the surface of the switching seat, and the interface end rows are used for arranging a plurality of electrode sockets. The electrode sockets are arranged in a matrix arrangement mode on the inner side of the interface end rows and are electrically connected with the output end of the test box main body. In the application, heat-induced variable sheets are arranged between electrode clamping rods, and the heat-induced variable sheets are made of shape memory polyurethane materials, so that when the temperature reaches a set range, the heat-induced variable sheets can automatically contract, the electrode clamping rods are deflected to break the electrical contact, the interface end plays a role in quick power-off protection, and electrical damage or safety hazards caused by overheating can be effectively avoided.

The utility model discloses a kind of high-purity germanium detector vacuum life measuring device, including vacuum generation module and detection component, detection component is by first detection module and second detection module intercommunication composition, vacuum generation module and detection component intercommunication;First detection module includes first vacuum angle valve, vacuum leak and release gas test chamber and first vacuum gauge;Second detection module includes second vacuum angle valve, getter test chamber, getter sample chamber, second vacuum gauge, fine adjustment valve and high-purity test gas tank;The high-purity germanium detector vacuum life measuring device of this is vacuumized to detection component by vacuum generation module, subsequently detects the leak and release gas amount of high-purity germanium detector by first detection module, and then detects the getter gas suction capacity by second detection module, i. e. The vacuum life of high-purity germanium detector can be detected and calculated;The device can effectively detect the vacuum performance of high-purity germanium detector, provide support for the maintenance of high-purity germanium detector, ensure its detection accuracy.

This invention provides a constant temperature and pressure control method and a high and low temperature low pressure test chamber. Through high-precision sensor array multi-source data acquisition, signal filtering and feature extraction, combined with improved Granger causality test and coupling spectrum construction, the main propagation path and propagation characteristics of various disturbances are identified. By using sliding window online optimization and dynamic weight matrix, the disturbance suppression mechanism is embedded in the PID loop to achieve multi-channel weighted compensation of proportional, integral and derivative components. This invention can accurately identify and compensate for external disturbances of different paths, time sequences and frequency bands in real time, improve the control accuracy and anti-interference ability of the system, and ensure the stability and robustness of the test chamber operation.

The invention relates to the technical field of concrete impact resistance tests, and discloses a concrete impact resistance test device and method, which solves the problem of low test precision, and comprises a support frame, a support plate is arranged at the top of the support frame, a test box is arranged at the top of the support plate, and an adjusting frame is arranged at the top of the support plate. An adjusting fluted disc is slidably connected into the adjusting frame, a guide rail is arranged on the inner side of an adjusting gear, an auxiliary barrel is arranged at the bottom of the guide rail, a main barrel is slidably connected to the outer portion of the auxiliary barrel, two locking heads are arranged in the auxiliary barrel, a supporting disc is tightly attached to the tops of the two locking heads, and an electromagnet is arranged at the bottom of the supporting disc. A plurality of balancing weights are arranged at the bottom of the electromagnet, and a test head is arranged at the bottom of the balancing weight at the lowermost end; according to the device, the clamping screw can be driven to rotate through the clamping motor, so that the clamping sliding block can be driven to rotate, the clamping plate is driven to move along the clamping groove, a test block is clamped, and the device is adaptive to test blocks with different sizes.

An apparatus for testing rings cut from pipes, comprising: a plurality of test chamber sections which, when placed together, define a test chamber for receiving the ring to be tested, the test chamber sections comprising at least a first test chamber section defining a first inner face of the test chamber and a second test chamber section defining an opposed second inner face of the test chamber, the first and second inner faces defining annuli arranged to contain the ring to isolate the inside of the ring from the outside; means for clamping the test chamber sections together to form the chamber; a fluid inlet port in one of the chamber sections to allow a pressurized fluid to be admitted to the chamber outside the ring when received in the chamber; and one or more sensors for measuring strain and deformation of the ring and fluid pressure.

The application provides a detachable slurry shield slurry film forming and curing test device and an intelligent evaluation method, and relates to the technical field of slurry film forming, and comprises: a one-dimensional permeation column assembly, the one-dimensional permeation column assembly comprises an upper top plate, an upper permeation column body, a detachable permeation column body, a lower permeation column body, a lower bottom plate and a pressure gauge; a pressurizing assembly, the pressurizing assembly is in communication with a pressurizing through hole of the upper top plate; a pore water pressure monitoring assembly, the pore water pressure monitoring assembly is arranged in the one-dimensional permeation column assembly; a filtrate collecting assembly; a pressure maintaining observation assembly, a detachable permeation column placing ring is arranged in a test box body of the pressure maintaining observation assembly; and an information processing assembly, the information processing assembly is electrically connected with the pore water pressure monitoring assembly and a weighing mechanism respectively. The application improves the test efficiency and realizes accurate evaluation on the slurry film forming process and plugging effect.

The embodiment of the invention provides a method and device for determining filter inductance parameters of a switching power supply conversion circuit and a medium. The method comprises the following steps: setting two ends of an output filter capacitor at the output end of a switching power supply as sampling points and connecting a radio frequency connecting line to lead a ripple signal out of a high-low temperature test box for measurement, so that an output voltage ripple amplitude at a preset temperature can be accurately obtained under the condition that the high-low temperature test box is not opened; when the ripple exceeds a preset output ripple amplitude, a magnetic ring winding inductor is installed at the position of an output filter inductor, and the number of winding turns and / or the length of a wire are / is adjusted to adjust an inductance value and a direct-current resistance parameter, so that an output filter inductor parameter meeting a ripple index is rapidly determined; the problems that in the prior art, measurement and adjustment cannot be conducted at the same time in the high and low temperature environment, dead halt and restart are easily caused by large ripples in the mass production stage, and the repeated revision cost is high are solved.

The utility model relates to test box technical field discloses a test frame and test box. Test frame sets up in the box body of test box, and test frame includes bracket and grating disc, and bracket includes crossbeam and guide portion, and crossbeam fixedly connects in the left and right sides in the box body and is used for supporting the edge of grating disc, and guide portion is fixedly connected on the crossbeam, and the guide portion is equipped with guide inclined plane, and grating disc can fall into the preset position of crossbeam along guide inclined plane. The utility model provides test frame, and when placing grating disc, through the guiding effect of guide portion, can place grating disc on the correct position of crossbeam of forklift quickly and accurately, improves operation efficiency.

The utility model discloses an automatic high temperature ageing test box relates to test equipment production technical field, including the box, the tray of sliding connection in the box inside, drive mechanism and heating unit, and the test cabin is seted up in the box inside, and the through groove is seted up on the box outer wall, and the through groove is linked together with the test cabin, and drive mechanism sets up in the box inside, and drive mechanism output is connected with the tray, and heating unit sets up in the test cabin, and the tray is kept sliding in the test cabin through drive mechanism drive, and moves to the outside of the box through the through groove. The utility model provides an automatic high temperature ageing test box, and the test cabin in the box inside can be heated through heating unit to simulate high temperature environment, and the sample of being tested can be supported through the tray, and the tray can be kept sliding in the test cabin through drive mechanism drive, and then moves to the outside of the box through the through groove, can conveniently check the sample ageing state of test personnel at any time, improves test efficiency.

The utility model discloses a rotary heating type air circulation test box which comprises an outer box body and an inner box body, the inner box body is located in the outer box body and connected with the outer box body, a box door is arranged on one side of the outer box body, and the inner box body and the box door form a test cavity; a rotatable turntable is arranged in the test cavity, a plurality of supports for placing to-be-tested products are arranged on the turntable, and the supports are uniformly distributed along the edge of the turntable. According to the rotary heating type air circulation test box designed by the utility model, a plurality of to-be-tested products can be placed on the supports, the phenomenon of stacking is avoided, the products are driven to rotate in the test cavity through the rotation of the turntable, and the plurality of supports can drive the plurality of products to synchronously test, so that the test efficiency is high; the rotary heating mode enables the product to be heated uniformly, and the test result is accurate.

The invention belongs to the technical field of material testing, and discloses a connecting assembly of a high and low temperature test box universal testing machine, which comprises a bearing assembly, two clamping assemblies are arranged in the bearing assembly, the bearing assembly comprises a support frame, the support frame is connected with a test box, two partition plates are connected in the test box, and the two partition plates are arranged on the support frame. The test box is internally provided with a test cavity, the test cavity is located between the two partition plates, the two clamping assemblies move in the test cavity, and adaptation to test pieces of different specifications is achieved through cooperation of the multiple assemblies. A telescopic part in the bearing assembly can adjust the distance between the two clamping assemblies to meet the requirements of test pieces with different lengths; the restraining block of the clamping assembly slides along the sliding groove, and the diameter of the threaded cavity can be changed to adapt to test pieces with different diameters. Meanwhile, the tapping part can adjust tapping parameters according to the material of the test piece, and is matched with a constraint block pressure sensor for monitoring, so that the tapping effect of the high-hardness test piece is ensured, and stable clamping of the test pieces of various sizes and materials is realized.

The invention discloses a microenvironment corrosion simulation test device and method under a temperature and humidity control thermal insulation layer, and the device comprises a test box which comprises a box body and a sealing cover plate, and the sealing cover plate is detachably connected to the front side of the test box through a connecting piece; the sample fixing frame is fixedly connected into the test box, a test electrode is mounted on the sample fixing frame, and a thermal insulation material covers the test electrode; the temperature control mechanism is arranged in the test box and is used for adjusting the temperature in the test box; the humidity adjusting mechanism is communicated with the interior of the test box and is used for adjusting the humidity in the test box; the temperature and humidity monitoring module is mounted in the test box and is used for monitoring temperature and humidity; and the control system is used for controlling the operation of the whole device. According to the invention, a closed microenvironment with controllable temperature and humidity under the thermal insulation layer is truly restored, and a practical test scene is provided for corrosion research.