270results about "Lab clamping means" patented technology

A microtiter plate mixing control system is disclosed. The system includes a frame, a suspension system attached to the frame, and a magnetically responsive horizontal platform supported on the frame by the suspension system. A solenoid is adjacent the platform for moving the platform on the suspension system. A proximity sensor is adjacent the platform for determining the position of the platform with respect to the frame. A controller is in communication with the proximity sensor and the solenoid for driving the solenoid and moving the platform in response to the proximity sensor.

The invention relates to a fixing and clamping device for medical instrument inspection and a using method, and belongs to the technical field of medical instruments, the fixing and clamping device comprises a supporting base, an anti-skid pad and a control panel, an adjusting and clamping mechanism is arranged at the top of the supporting base, and the adjusting and clamping mechanism comprises a driving motor fixedly installed in the supporting base; an output shaft of the driving motor is fixedly connected with a speed reducer, and an output shaft of the speed reducer is fixedly connected with an adjusting column. According to the fixed clamping device for medical instrument inspection and the use method, a first adjusting clamping seat and a second adjusting clamping seat are synchronously driven to adjust the height up and down under the action of a threaded rod, a hand wheel, a joint seat, a movable seat, an adjusting rod, a mounting seat and a friction rod; the distance between the first adjusting clamping base and the second adjusting clamping base and the distance between the first fixed clamping base and the second fixed clamping base are adjusted through the action of the supporting rod, the adjusting pull rod, the movable base, the fixed base and the telescopic spring, and the application range of the clamping device is widened.

The invention relates to the technical field of medical cell culture, and discloses a medical experiment cell culture device which comprises a culture box, an electric push rod is fixedly connected to the lower surface of the culture box, a supporting plate is fixedly connected to the output end of the electric push rod, and a first connecting column is fixedly connected to the outer wall of the supporting plate; a first partition plate is fixedly connected to the inner wall of the incubator, a sliding groove is formed in the first partition plate, the outer wall of the first connecting column is slidably connected to the inner wall of the sliding groove, and a movable frame is rotatably connected to the outer wall of the first connecting column. The electric push rod is started to drive the supporting plate to move up and down, and then the connecting column drives the moving frame to move synchronously. The movable frame drives the transmission plate to move upwards, the frame plates at the two ends are pulled or pushed to move relatively through the fixing columns, then the closing plate is driven to be opened and closed, meanwhile, the placing frame can be moved into a test box or stored into a culture box, operation convenience and efficiency are improved, and the risk that the culture environment is polluted by manual taking is avoided.

The invention relates to the technical field of cleaning equipment, in particular to an underwater cavitation jet observation experiment device and method based on a triangular reflector, and the device comprises a jet control device, an impact observation device, a plurality of light source assemblies and a high-speed camera. The spraying control device comprises a nozzle, and external high-pressure water flow is sprayed out downwards from the nozzle after passing through the pump pipe; the impact observation device comprises a clamping device. The clamping device comprises a triangular prism reflector and a support used for placing the triangular prism reflector. A shot picture of the high-speed camera can simultaneously comprise a free jet flow area and a jet flow impact area reflected by the triangular prism reflector. According to the double-angle free cavitation jet flow observation device, the three-edged reflector is utilized, cavitation flow evolution of a free jet flow area of cavitation jet flow and a jet flow impact area reflected by the three-edged reflector can be observed at the same time, and double-angle free cavitation jet flow observation is achieved.

The invention discloses a pioglitazone hydrochloride sampling device and a use method thereof, and relates to the technical field of medicine sampling, the pioglitazone hydrochloride sampling device comprises a sampling mechanism and lifting fixing rods mounted around the bottom of the sampling mechanism, a fixing structure is arranged at the bottom of the sampling mechanism, beaker fixing seats are symmetrically mounted on one side of the top of the fixing structure, and the beaker fixing seats are symmetrically mounted on the bottom of the sampling mechanism. The sampling mechanism comprises a horizontal moving support, a horizontal moving motor is fixedly mounted on one side of the horizontal moving support, a horizontal threaded rod is fixedly connected to the output end of the horizontal moving motor, a horizontal threaded sleeve is in threaded connection to the outer side of the horizontal threaded rod, and an electric telescopic rod is fixedly mounted at the bottom of the horizontal threaded sleeve. The pioglitazone hydrochloride white crystal powder can be clamped through the sampling tube and the clamping hopper, and meanwhile, the pioglitazone hydrochloride and a corresponding reagent can be mixed to form a flowing sample, so that the pioglitazone hydrochloride can be conveniently detected.

The invention discloses a device and method for detecting saturation pressure through a near-infrared technology, and relates to the field of fluid saturation pressure detection. The device for detecting the saturation pressure through the near-infrared technology comprises a moving unit, a storage unit and a detecting unit, wherein the storage unit moves through the moving unit; the detection unit comprises a detection frame, a pressure adjusting mechanism, a clamping mechanism and an observation mechanism. According to the device and method for detecting the saturation pressure through the near-infrared technology, when the device is used, the output end of a driving air cylinder stretches, so that a clamping mechanism automatically clamps a storage unit, after clamping is completed, a pressure adjusting mechanism automatically completes gas circuit connection with the storage unit, an observation mechanism can be automatically in place and prepare for observation, and after detection is completed, the storage unit can be automatically adjusted. Along with the contraction of the output end of the driving cylinder, the clamping mechanism and the pressure adjusting mechanism are separated successively, then the observation mechanism is reset, and the moving unit automatically replaces the storage unit, so that the whole detection process is full-automatic, more convenient and time-saving.

The invention discloses automatic pretreatment equipment for fly ash detection. The automatic pretreatment equipment comprises a raw material reagent storage area; a leach liquor preparation area; an extraction bottle functional area; performing suction filtration to determine a functional area; a constant-volume function area is taken separately; and a support frame. The method aims at achieving automation of the pretreatment process for detecting the leachable metal in the fly ash leaching toxicity, the workload of repeated mechanical operation is reduced, analysis errors caused by tedious pretreatment operation are reduced, the detection and analysis work efficiency is improved, and therefore the operation cost of related enterprises and public institutions is reduced. Meanwhile, according to the scheme, through a full-automatic operation process, the processes of automatic preparation of the leaching liquid, automatic split charging of the leaching liquid, automatic filtration / suction filtration of the leaching liquid, automatic determination of the pH value of the leaching filtrate, automatic separation of the leaching filtrate, automatic acid adding before digestion of the filtrate, automatic acid adding and sample reserving of the residual filtrate, automatic volume fixing after digestion of the filtrate and the like are achieved; and no personnel intervention is needed in the normal operation process, the set processing flow is automatically operated, and the automation degree is high.

A centering holder for centering and holding one sample tube the centering holder being adaptable to sample tubes having different diameters is disclosed. The centering holder comprises: at least two coupled centering fingers arranged and configured to adapt to the diameter of the sample tube and for applying a centering force onto the sample tube in a direction towards a center axis of the centering holder, wherein each of the centering fingers comprises at least one rod element and at least one sleeve, wherein the sleeve at least partially surrounds the rod element, wherein the sleeve is configured for physically contacting the sample tube thereby transferring the centering force onto the sample tube; and at least one base element configured for supporting the at least two rod elements of the centering fingers.

Systems and methods for enhanced film sample gripping solutions are provided. An apparatus for processing a thin film sample may include a sample holder configured to engage the thin film sample, where the sample holder includes one or more holding members configured to receive the thin film sample in a flat position relative to the sample holder, and one or more securing members configured to secure the one or more holding members to the one or more holding members. The one or more securing members are configured to securely maintain the film sample in a flat position during manipulation of the sample holder. The sample holder may include one or more apertures between the one or more fixing members that enable access to both sides of the thin film sample at two or more locations on the thin film sample. The sample holder may include a width adjustment component configured to allow adaptation to different sample widths.

The present invention provides an apparatus for conducting an assay in a microfluidic system comprising magnetic beads, said apparatus comprising: a platform upon which a microfluidic system can be mounted, one or more actuators having a magnet, configured to directly influence movement of magnetic beads housed within a microfluidic system when a microfluidic system is mounted on said platform, and a control means configured to control relative movement of the one or more magnets, and a microfluidic system when mounted, to enable the magnet to trace a desired path across a mounted microfluidic system, said magnet being positionable at any x- and y-coordinates of a mounted microfluidic system, wherein said apparatus further comprises: a) at least one rotary actuator configured to enable magnet movement in an x-axis, and / or b) a means for moving a mounted microfluidic system in a stepwise fashion.

A gripper for moving a microtiter plate (190) using a robot arm (100) comprises a finger bodies (310), finger cantilevers (330), and resilient strips (370) so as to accommodate for inacurracies of the robot arm (100). The invention also relates to a method for moving a microtiter plate (190) with a robot arm (100) with improved reliability comprises the use of said gripper comprising two fingers (300) comprises independent of the other finger (300) a primary element chosen from i) a protrusion and ii) a cut-out capable of receiving the protrusion, and the MTP (190) comprising a secondary element that is the other of the primary element, and grabbing the plate (335) such that the primary and secondary element engage.

The invention belongs to the technical field of viscosity detection, and discloses a coating viscosity detection adjusting device which comprises a base, a mounting rod fixed at the top end of the base, a viscosity measuring instrument fixed at the top end of the mounting rod, a lifting mechanism fixed at the top end of the base, and a clamping mechanism mounted at the top end of the lifting mechanism. Through cooperation of structures such as a supporting seat, a first supporting rod and a first connecting rod, the device can start a servo motor to drive a screw rod to rotate when the height of a to-be-tested sample needs to be adjusted, so that the screw rod drives a second connecting seat to move; a first connecting rod and a second connecting rod are contracted or unfolded by changing the position of a second connecting seat, and a third connecting rod and a fourth connecting rod at the top end are synchronously folded at the same angle, so that the heights of a top-end top plate and a to-be-tested sample at the top end of the top plate are changed, and the to-be-tested sample is lifted; therefore, the purpose of improving the detection efficiency by quickly adjusting the height of the sample to be detected by the device is achieved.

The invention relates to the technical field of testing or analyzing materials by means of measuring chemical or physical properties of materials, in particular to a Chinese patent medicine added component detection device and method.The Chinese patent medicine added component detection device comprises a mass spectrometer body, and a containing cavity is formed in one side of the mass spectrometer body; a tray and a target plate are arranged in the containing cavity, and a plurality of grooves are formed in the target plate; the tray is rotationally connected to the containing cavity through a pin shaft, and the pin shaft is in transmission connection with a first driving mechanism used for driving the pin shaft to rotate. A clamping mechanism is arranged on the other side of the mass spectrometer body, the clamping mechanism holds the container, and the container is used for placing an initial sample to be tested; the clamping mechanism is in transmission connection with a second driving mechanism, and the second driving mechanism is used for driving the clamping mechanism to be close to or away from the probe of the mass spectrometer body; the invention further discloses a detection method applying the Chinese patent medicine added component detection device. The clamping device solves the problem of how to clamp a container filled with Chinese patent medicine component samples.

The invention belongs to the technical field of glue viscosity testing, and particularly relates to a novel glue viscosity testing device which comprises a testing box, a circular truncated cone, a pushing clamping mechanism and a viscosity testing mechanism, and a temperature sensing assembly is arranged in the testing box; the circular truncated cone is arranged in the test box, a plurality of hole bodies are formed in the circular truncated cone, and a measuring cylinder is arranged in each hole body; the plurality of groups of pushing clamping mechanisms are positioned in the plurality of hole bodies and are used for clamping the plurality of measuring cylinders; the viscosity testing mechanism is arranged in the testing box and is used for testing the viscosity of the glue in the plurality of measuring cylinders; according to the glue viscosity testing device disclosed by the invention, the accuracy of testing the viscosity of glue in the measuring cylinders cannot be reduced due to the influence of the external environment; the accuracy and the high efficiency of batch testing of different or the same type of glue by the viscosity testing mechanism can be improved.

The invention discloses an intelligent glassware storage cabinet with recognition, classification and detection functions, and relates to the technical field of experimental facilities, the intelligent glassware storage cabinet comprises a glassware storage unit, a recognition and detection unit, an object taking and conveying unit and a control unit, and the glassware storage unit is installed in a storage cabinet body. The profiling groove of the memory sponge lining of the glass instrument storage unit is matched with instruments of the same type and multiple specifications, the pressing assembly achieves dynamic pressing through the micromotor and the pressure sensor, and the complexity of manually replacing a mold is avoided. The recognition and detection unit fuses a visual camera and a four-way ultrasonic detection module, accurate judgment of instrument types is achieved through visual recognition, an ultrasonic probe scans the interior of the instrument from the front, back, left and right faces, and hidden damage such as microcracks can be detected. The object taking conveying unit conveying belt achieves efficient linkage of a storage area and an object taking area, the object taking time of a single instrument is greatly shortened, the concentrated object taking efficiency of instruments of multiple specifications is improved, and the wrong taking rate is reduced.

The invention discloses an intelligent underground water quality monitoring device and method, and relates to the technical field of water quality monitoring, the intelligent underground water quality monitoring device comprises a shell and a draw-off pump, a connecting column is mounted on the draw-off pump, and a supporting assembly is arranged on the outer side of the connecting column; the supporting assembly comprises a sleeve shell, an electric push rod, a movable ring, a sliding block, a supporting rod, a limiting rod and a contact block, the sleeve shell is installed on the outer side of the connecting column, and the electric push rod is installed on the outer surface of the sleeve shell through a support. The contact block extrudes the inner wall of the vertical shaft, the device is stably fixed in the vertical shaft and adapts to vertical shafts of different sizes, data accuracy and stability are guaranteed, meanwhile, the connecting column and the sleeve shell are matched through the rotating ring, the first spring and the fixing bead, flexible rotation can be achieved, the direction of the draw-off pump can be adjusted according to the underground water flow direction, the turbofan directly faces the water flow, and the flow speed monitoring accuracy is improved.

The invention relates to a detection device and a detection method of an air filter, which are applied to the field of quality detection, during detection, a lead screw is matched with a detection piece, the integrity of a filter element is pre-detected through wind speed uniformity, and then a smoke dust test is started; detecting whether nodes which are suddenly increased appear or not by using a movable detection piece so as to judge whether the filter element has non-penetrating cracks or not; after detection, automatic cleaning is achieved through a dust collector and a rotatable sealing plate, an electric extension rod is adopted for adjusting an eccentric sealing plate for dynamic sealing compensation according to filters of different sizes, the device further comprises a stirring piece for accelerating smoke flocculation and sedimentation, and a detection control system achieves automatic operation; the problems of damage interference, residual smoke influence, poor size adaptability and the like in traditional detection are effectively solved, and the detection precision and efficiency are remarkably improved.

To provide a laboratory system for monitoring a reference point of a laboratory device.SOLUTION: A laboratory system comprises a first laboratory device comprising a first reference point, a second laboratory device comprising a second reference point, and a coupling element. The coupling element couples the first reference point and the second reference point. The coupling element comprises a detectable part adapted to be moved between a starting position and at least one detection position when a relative position of the first reference point and the second reference point to each other changes. The laboratory system further comprises a sensor configured to detect the detectable part of the coupling element in the at least one detection position. In addition, a method of operating the laboratory system as described is disclosed.SELECTED DRAWING: Figure 1A

The application discloses a slice rack, which comprises a slice rack body, a plurality of slice grooves are arranged on the slice rack body, a horizontal rectangular coordinate system is arranged and comprises an X direction and a Y direction, two opposite sides of the X direction are arranged as a first X direction side and a second X direction side, two opposite sides of the Y direction are arranged as a first Y direction side and a second Y direction side, a clamp jaw is arranged on the first Y direction side and the second Y direction side in each slice groove, one end of the clamp jaw is a connecting end connected with the slice rack body, the connecting end of the two clamp jaws in each slice groove is located on the first X direction side of the X direction in the slice groove, the other end of the clamp jaw is a free end and faces the second X direction side of the slice groove, and the clamp jaw can be bent and deformed around the connecting end of the clamp jaw. The slice rack has a simple structure, can be integrally formed by molding, is convenient to install the slice, and is convenient, fast and reliable in slice installation.

The invention discloses a round-bottom flask placing support and method. The support comprises a flask support and a flask connecting piece. The flask support comprises a flask bottom clamping piece, a connecting piece and a first fixing piece which are sequentially connected, wherein the first fixing piece is located on the upper portion of the flask bottom clamping piece, and a fixed angle is formed between the first fixing piece and the flask bottom clamping piece in the vertical direction; the flask connecting piece comprises a second fixing piece which is located above the first fixing piece and detachably connected with the first fixing piece, the second fixing piece is connected with one end of a flask fixing structure, and the flask fixing structure and the flask bottom clamping piece form the fixed angle in the vertical direction. And the other end of the flask fixing structure is connected with the grabbing part. According to the invention, the flask can be placed in the flask bottom clamping piece at a fixed angle, a robot can position and grab the flask conveniently, and meanwhile, the grabbing part connected with the flask fixing structure is arranged, so that the experiment robot can position the grabbing position conveniently, and the flask can be grabbed stably and prevented from falling off.

The invention provides a constant-temperature corrosion control device and a constant-temperature corrosion control method for aluminum alloy intergranular corrosion. The constant-temperature corrosion control device comprises a test box unit and a corrosion unit, the test box unit comprises a test box and a test box bracket; the corrosion unit comprises a vessel, a sample, a clamp, a string / belt and a vessel cover; an intergranular corrosion solution is contained in the vessel, the vessel is arranged in the test box, a sample is clamped on the surface of the sample through a clamp, the clamp penetrates through the vessel cover through a thin rope / belt and is connected to a test box support, and the test box support is located at the top end of the test box and can meet parallel tests of three or more sample products. Under the condition that the sample is not damaged, the temperature of the intergranular corrosion solution is controlled according to the heat conduction and heat convection principle of the test box, and the accurate control problem of the corrosion temperature in the aluminum alloy intergranular corrosion method is solved.

The application belongs to the technical field of RNA extraction devices, and particularly relates to an ep tube rack for RNA extraction, which comprises an ep tube rack body, a controller, a placing hole, a sucking assembly and a shaking assembly. A plurality of rows of placing holes with different specifications are formed in the ep tube rack body. The sucking assembly comprises a clamping ring, a fixing frame, a fixing column and a stabilizing frame. The fixing frame is fixed to one side of the front end of the ep tube rack body. The fixing columns are rotatably connected to the adjacent surfaces on the upper ends of the two fixing frames, and the fixing columns are damping shafts. The clamping ring is fixed between the two fixing columns. The stabilizing frame is fixed to the middle of the front end of the ep tube rack body. The application solves the problem that if the experimenter shakes hands, the upper layer of colorless water phase is easily transferred to a new ep tube after centrifugation, which can cause experimental failure.

To provide a suitable locking assembly for a measuring system.SOLUTION: The present disclosure is directed in one aspect to a lock assembly for securing a sample tube assembly to a sample manifold of a measurement system. The locking assembly includes a ramp block having one or more slots defined therein and configured to at least partially receive a portion of a sample tube assembly. The ramp block also includes a plurality of surface features defined therealong and configured to engage and move the sample tube assemblies toward and into engagement with the sample manifold. The lamp block is further movable between a plurality of positions, including an open position for allowing the sample tube assemblies to be received through the one or more slots or openings, and a closed position that substantially seals the sample tube assemblies against or within the sample manifold. Other aspects are also described.SELECTED DRAWING: Figure 1

The invention discloses a fixing clamp and a clamping method for a silicon carbide crucible, and relates to the technical field of crucible clamping. The device comprises a power-assisted mechanical arm, a clamping assembly and a detecting and cleaning assembly, before a crucible is clamped, a rotary mounting plate moves, a cleaning brush and a supporting round rod on one side of the rotary mounting plate make contact with an elastic clamping plate, the elastic clamping plate moves in the direction close to the crucible to drive the rotary mounting plate to move, and the crucible is clamped; the cleaning brush on the other side of the rotating mounting plate and the supporting round rod make contact with the surface of the crucible, the elastic clamping plate stops moving, at the moment, the elastic clamping plate is a bent arc-shaped plate, the rotating mounting plate moves in the side face direction of the elastic clamping plate, and the rotating mounting plate drives the cleaning brush to move; the cleaning brushes on the two sides of the rotating mounting plate are used for cleaning the side face of the elastic clamping plate and the surface of the portion, making contact with the elastic clamping plate, of the crucible, and impurity particles are prevented from being attached to the side face of the elastic clamping plate and the surface of the crucible and scratching the crucible during clamping.

A robotic liquid handling system may be provided comprising a robotic arm and a controller configured to control the robotic arm to position and operate the robotic arm in a workspace of the robotic liquid handling system. The controller may be configured to, as part of a liquid handling task, control the robotic arm to open a reagent reservoir, wherein the reagent reservoir has an opening which is sealed by a foil. The controller may be configured to control the robotic arm to open the foil by controlling the robotic arm to, using a cutting tip (260), cut at least two flaps in the foil, and using a blunt protrusion, push the at least two flaps downwards into the reagent reservoir to clear at least part of the opening of the reagent reservoir. Further aspects of the invention relate to a computer-implemented method for controlling a robotic arm and to an opening tool (200) comprising the cutting tip and the blunt protrusion.

The invention discloses an automatic control chemical experiment reaction device which comprises a back plate, a clamping assembly, a stirring assembly and an injection thruster, the clamping assembly is fixedly connected to the back plate, the stirring assembly is placed on the front side of the back plate, the position of the stirring assembly is matched with that of the clamping assembly, and the injection thruster is placed on one side of the back plate. A driver and a controller which are fixedly connected with the back plate are arranged on the back plate, the controller is in electric signal connection with the driver, and the driver is in electric signal connection with the clamping assembly, the stirring assembly and the injection propeller; according to the device, by adopting a modular motor driving system, a plurality of assemblies with different functions are coordinated and dispatched, so that the steps of automatic clamping, heating and stirring, reagent injection and the like of a reaction container are sequentially completed by each assembly according to a preset program, the defects existing in manual operation in the whole process are greatly reduced, and the production efficiency is improved. A large amount of time can be saved, and meanwhile the implementation efficiency and repeatability are indirectly improved.

The invention discloses a thermomechanical analyzer, and relates to the technical field of thermomechanical analys.The thermomechanical analyzer comprises a base, a lifting assembly, a first testing mechanism, a second testing mechanism, a clamping mechanism and a furnace body, the lifting assembly is installed on the back face of the base, the first testing mechanism is installed at the top of the lifting assembly, and the second testing mechanism is used for annular shooting of a sample; the clamping mechanism is installed at the bottom of the first testing mechanism, and the furnace body is installed in the middle of the base. The arrangement mode that the first testing mechanism, the second testing mechanism and the clamping mechanism are matched is utilized, so that the clamping mechanism can conduct point contact of different degrees according to the shapes of different samples, and the influence of the clamp on the temperature of the samples can be reduced; the sample can be subjected to mechanical pressurization testing and thermal expansion shooting comparison by the first testing mechanism and the second testing mechanism, so that the material performance of the sample can be conveniently and accurately tested, and the furnace body can conveniently perform thermal method testing on the samples with different shapes.

The invention relates to the technical field of incubation devices, and discloses a detection sample incubation device and method.The detection sample incubation device comprises a base and a water tank, a protective fence is fixedly installed on the periphery of the top of the base, the water tank is fixedly installed in the middle of the top of the base, and a heat preservation fence is fixedly installed on the periphery of the exterior of the water tank; a plurality of incubation spacing frames are arranged in the water tank in a linear array, and a plurality of flow guide holes penetrating through the outer surface of each incubation spacing frame are formed in the two sides of the incubation spacing frame. By arranging the clamping assembly, the clamping force can be dynamically adjusted according to real-time deformation of the incubation barrel, when the incubation barrel expands or shrinks due to temperature change, the clamping assembly keeps constant and flexible clamping force, and stress concentration or extrusion fracture caused by fixing a clamping groove is avoided.

A gripping system is provided comprising: gripping fingers of a first type, gripping fingers of a second type, a gripping device for handling sample containers, wherein the gripping device comprises base portions, wherein a gripping finger of the first type and a gripping finger of the second type are releasably fixable to the base portions, and a drive, wherein the drive is adapted to move at least one of the base portions relative to the other base portions to cause a gripping or a releasing of a sample container, and a gripping finger change device, wherein the gripping finger change device is adapted to store gripping fingers of the first type and gripping fingers of the second type, and wherein the gripping finger change device is adapted to replace a gripping finger of the first type fixed to a base portion by a gripping finger of the second type.

The application discloses a kind of quick temperature change damp heat test device, belong to temperature change damp heat test technical field, including test box, the bottom wall of the test box is slidably installed with placing plate, the bottom wall of the test box is rotatably installed with annular plate, the top wall of the annular plate is fixedly installed with mounting ring, the top wall of the mounting ring is uniformly fixedly installed with gas rod.This scheme passes impeller, in the process of air flow flow direction annular groove will blow impeller rotation, in the process of impeller rotation annular plate is driven to rotate, then in the process of annular plate rotation through mounting ring gas rod is driven to rotate, at the same time, when airflow passes through communication pipe, airflow will flow to gas tank through communication pipe, and flow to vertical groove through gas tank, then blow to the product to be measured through the air hole on vertical groove, so that the efficiency of the product to be tested can be improved uniformly heated, cold and wet, improve the efficiency and accuracy of test.