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230 results about "Temperature testing" patented technology

Standard practice when collecting urine specimens for drug testing is to check the temperature of the specimen within four minutes of obtaining a viable specimen. Any temperature between 90 – 100 F is normal.

Temperature testing device for thermal protector

The utility model discloses a thermal protector temperature testing device which comprises a testing assembly, a control panel and a wind wheel motor, the testing assembly comprises a wind barrel, a barrel cover assembly, an air duct basin, a centrifugal wind wheel and a socket frame, the socket frame is provided with conductive clamping pieces used for being electrically connected with a thermal protector, and the conductive clamping pieces are uniformly distributed in the circumferential direction. The barrel cover assembly covers the air barrel, the centrifugal wind wheel is arranged on the lower side of the air duct basin, a heating pipe is arranged on the outer side of the centrifugal wind wheel, the wind wheel motor is in driving connection with the centrifugal wind wheel, the conductive clamping piece is arranged above the air supply duct correspondingly, a ventilation opening is formed in the bottom of the air duct basin, and the position of the air suction end of the centrifugal wind wheel corresponds to the ventilation opening. A temperature sensor is arranged on the lower side of the socket frame, on-off indicating lamps are arranged on the control panel, the conductive clamping pieces are electrically connected with the corresponding on-off indicating lamps respectively, and the control circuit is electrically connected with the temperature sensor and the heating tube. The temperature testing device for the thermal protector is beneficial to improving the working efficiency and improving the effectiveness of quality inspection.
Owner:FOSHAN HUILONG THERMOSTAT CO LTD

Ultralow-temperature slow strain mechanical tensile test platform

The invention relates to the technical field of material mechanical property testing, and provides an ultralow-temperature slow strain mechanical tensile test platform which comprises a vacuum Dewar unit, a liquid helium temperature control unit, a slow strain tensile unit, a measuring unit and a control unit, the vacuum Dewar unit comprises a vacuum Dewar body and is used for providing a closed low-temperature test environment; the liquid helium temperature control unit comprises a direct injection module and a recovery module, the direct injection module is used for directly injecting liquid helium to the gauge length section of the sample for cooling, and the recovery module is used for recovering and recycling unevaporated liquid helium; the slow strain stretching unit is used for stretching a sample arranged in the vacuum Dewar body at a low strain rate; the measuring unit is arranged in the vacuum Dewar body and is used for monitoring the temperature, the force value and the strain data of the sample in real time. Liquid helium is used as a cold source, the liquid helium is directly aligned to the gauge length section of the sample through the direct injection module, and compared with a traditional liquid helium steam natural convection heat exchange mode, the heat exchange coefficient is increased, and automatic precise temperature control is achieved.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI

Systems and methods for performing response testing at low temperatures

Systems and methods are directed toward low temperature testing of motion, vibration, or force responses of test fixtures. For cryogenic shock testing, a test object can be secured on a test apparatus, such as a test fixture of a shock table. An elongated enclosure, such as a flexible tube, can be connected between the test fixture and a laser vibrometer, positioned orthogonal to a surface normal at a test region of the test fixture to enable light emitted by the vibrometer to be reflected from the test region back to the vibrometer. A flow of purge gas can be introduced into the tube, proximate the test fixture, to direct moisture away from the test fixture. The flow can prevent condensation or ice from forming on the surface of the test fixture at the cryogenic temperature. A shock event can be simulated, and the response of the test region measured by the laser vibrometer. The impact of the shock event on the test object can then be observed.
Owner:BLUE ORIGIN MANUFACTURING LLC

Steady-state temperature distortion inlet temperature test layout method

The invention provides a steady-state temperature distortion inlet temperature test layout method, and belongs to the field of aero-engine tests, and the method comprises the steps: S10, constructing a temperature field mathematical model of a measurement cross section in a steady-state temperature distortion test and a test layout mathematical model employing a fixed total temperature probe for temperature measurement; s20, temperature field parameters used for describing temperature field distortion characteristics are determined, the relative error sum of the temperature field parameters in the prior flow field and the temperature field parameters at the corresponding coordinates of the test layout is calculated, and therefore the optimization target of the test layout is determined; and S30, taking the circumferential angle of the fixed total temperature probe in the test layout as an optimization parameter, taking the relative error sum of the temperature field parameters as an optimization target, and adopting an optimization algorithm to optimize the circumferential angle of the fixed total temperature probe in the test layout. Therefore, the circumferential optimal angles of the fixed total temperature probes with different circumferential numbers in the steady-state temperature distortion test are obtained. The method is good in convergence and high in calculation precision.
Owner:AECC SHENYANG ENGINE RES INST

Test method and device of cryopump, electronic equipment and storage medium

The invention discloses a testing method and device of a low-temperature pump, electronic equipment and a storage medium, and relates to the technical field of vacuum technology and vacuum pump performance tests.The testing method of the low-temperature pump comprises the steps that the first pressure of a first inflation chamber is obtained, and an air distribution mode is determined based on the first pressure; after gas distribution is completed based on the gas distribution mode, an impact test is started to introduce gas into the cryogenic pump; and acquiring temperature test data of the cryogenic pump, and determining the validity of the current test based on the temperature test data. According to the testing method of the low-temperature pump, the gas distribution process is more accurate through multiple gas distribution modes, the validity of the test data is judged through the temperature test data of the impact test, and the transition capacity parameter of the low-temperature pump is subjected to process inspection depending on experience; the method is converted into a standardized metering process which is high in reliability, high in efficiency and reproducible.
Owner:聚变新能(安徽)有限公司 +1

Low-temperature heat exchanger and sample rod

The utility model relates to the technical field of low-temperature testing, and discloses a low-temperature heat exchanger which comprises an inner pipe, an outer pipe, a cold head and a corrugated pipe section. A first refrigerant channel is arranged in the inner pipe; the outer pipe is sleeved outside the inner pipe; the outer surface of the inner pipe and the inner surface of the outer pipe form a second refrigerant channel; the cold head comprises a third refrigerant channel communicating with the first refrigerant channel. The third refrigerant channel is communicated with the second refrigerant channel; and the corrugated pipe section is arranged on the inner pipe and / or the outer pipe. The corrugated pipe section is arranged on the inner pipe and / or the outer pipe, so that the sample rod or other parts can be cooled through the low-temperature heat exchanger, and meanwhile, the transmission of cold source vibration on a refrigerant circulating part of the low-temperature heat exchanger is reduced, so that the influence of the cold source vibration on sample detection in a low-temperature environment is reduced, and the detection accuracy is improved. The reliability of a sample detection result is improved. The utility model further discloses a sample rod.
Owner:ZHIZHEN PRECISION INSTR (HANGZHOU) CO LTD

Structure surface temperature testing system based on color difference identification of photosensitive paint

The invention relates to the technical field of temperature testing, in particular to a structure surface temperature testing system based on photosensitive coating chromatic aberration recognition, which comprises a chromatic aberration feature extraction module, a heat conduction track analysis module and a temperature gradient reconstruction module. According to the method, the space-time evolution characteristics of a chromaticity field are captured through a dynamic gradient analysis technology, the non-uniform thermal field recognition sensitivity is improved, the stable temperature resolution is kept under complex illumination, a transient thermal shock propagation path is recognized and analyzed based on a heat conduction track cluster motion mode, the system response delay is shortened, and a nonlinear temperature-sensitive characteristic compensation mechanism is adopted; measurement deviation caused by coating process difference is overcome, higher-precision temperature reconstruction of a curved surface structure is realized, space correction and direction weighting are combined to enhance the spatial analysis capability of a temperature gradient field, a tiny heat affected area is accurately identified, multi-dimensional coupling analysis remarkably reduces temperature field reconstruction errors of a large-scale structure, and the engineering applicability is superior to that of a traditional method.
Owner:HUNAN UNIV OF ARTS & SCI

Test system, calibration device and test method

The invention provides a test system, a calibration device and a test method. The test system comprises a hot wire probe which comprises an electric heating wire, a thermocouple and a supporting rod; the heating wire and the thermocouple are fixedly connected to the supporting rod; the hot-wire probe is used for performing flow velocity testing on fluid at a target position in a target flow field to obtain a flow velocity signal and performing temperature testing on the fluid at the target position to obtain a temperature signal; the electric heating wire and the thermocouple are located on the same vertical line, a first distance exists between the electric heating wire and the thermocouple, and the first distance enables the electric heating wire and the thermocouple not to influence each other under the conditions of flow velocity testing and temperature testing; the acquisition unit is connected with the hot-wire probe through a circuit; the temperature sensor is used for converting a flow velocity signal into a first electric signal and converting a temperature signal into a second electric signal; the calculating unit is connected with the collecting unit and used for determining the target temperature and the target flow speed of the target position based on the first electric signal and the second electric signal.
Owner:TSINGHUA UNIVERSITY +1

A structure surface temperature testing system based on photosensitive coating color difference identification

The present application relates to the technical field of temperature test, in particular to a structure surface temperature test system based on color difference identification of photosensitive coating, which comprises a color difference feature extraction module, a heat conduction track analysis module and a temperature gradient reconstruction module.In the present application, the dynamic gradient analysis technology is used to capture the space-time evolution characteristics of the chroma field, improve the identification sensitivity of the non-uniform thermal field, maintain the stable temperature resolution under complex illumination, identify the propagation path of the transient thermal shock based on the cluster motion mode recognition of the heat conduction track, shorten the system response delay, adopt the nonlinear temperature-sensitive characteristic compensation mechanism to overcome the measurement deviation caused by the coating process difference, realize the higher precision temperature reconstruction of the curved surface structure, combine the spatial correction and the directional weighting to enhance the spatial analysis ability of the temperature gradient field, accurately identify the small heat influence area, and significantly reduce the temperature field reconstruction error of the large-scale structure through the multi-dimensional coupling analysis, so that the engineering applicability is better than that of the traditional method.
Owner:HUNAN UNIV OF ARTS & SCI

Variable temperature test system for providing different test environments and operation method thereof

A variable temperature test system and an operation method thereof are provided. The variable temperature test system includes a main control device, multiple test devices, and a variable temperature test platform. The variable temperature test platform is coupled to the main control device and the test devices. The main control device provides an adjustment parameter according to at least one pending test. The variable temperature test platform includes multiple test areas, multiple temperature sensors, and a temperature control module. The test areas are respectively coupled to the test devices. The temperature sensors are respectively disposed in the test areas. The temperature control module is coupled to the test areas. The temperature control module adjusts a temperature of at least one test area according to the adjustment parameter.
Owner:HEFEI CORE STORAGE ELECTRONICS LTD

High and low temperature drop hammer impact testing device

The utility model discloses a high and low temperature drop hammer impact testing device, which comprises a temperature control box, a falling channel, a height control unit and an impact hammer, the falling channel is longitudinally arranged and penetrates through the temperature control box, an impact hole is formed at the penetrating position, the impact hole is provided with an openable / closable plugging piece, an impact platform and an impact piece are arranged in the temperature control box, and the height control unit is connected with the height control unit. The impact platform is located below the falling channel, the impact piece is arranged between the impact platform and the falling channel through the limiting unit, the impact hammer is arranged in the falling channel, and the height control unit penetrates from the top end of the falling channel to be matched with the impact hammer to adjust and control the height of the impact hammer. According to the high and low temperature drop hammer impact test device, the test temperature is controlled through the temperature control box, and the impact hole can be quickly opened through the plugging piece, so that the impact hammer can freely fall to act on the impact piece, and the impact piece impacts a test sample, so that the high temperature or low temperature test of a high polymer material is realized; and the test operation is simple, and the test precision is high.
Owner:HUIZHOU RENXIN NEW MATERIAL CO LTD

Test method, device, electronic device and storage medium for cryogenic pump

This invention discloses a testing method, apparatus, electronic device, and storage medium for cryogenic pumps, relating to the technical fields of vacuum technology and vacuum pump performance testing. The testing method includes: acquiring a first pressure in a first filling chamber and determining a gas distribution mode based on the first pressure; after completing gas distribution based on the gas distribution mode, initiating an impact test to introduce gas into the cryogenic pump; acquiring temperature test data of the cryogenic pump and determining the validity of the current test based on the temperature test data. This invention's cryogenic pump testing method makes the gas distribution process more precise through multiple gas distribution modes, and determines the validity of the test data through the temperature test data from the impact test. This transforms the cryogenic pump's pass-through capacity parameter from an experience-dependent process check into a highly reliable, efficient, and reproducible standardized measurement process.
Owner:聚变新能(安徽)有限公司 +1

Vacuum fine-tuning control device for low-temperature test

The utility model discloses a vacuum fine-tuning control device for low-temperature test, which comprises a bottom frame and a frame fixed at the top end of the bottom frame, a control box fixed on the back of the frame, a rear vacuum box mounted on one side of the bottom of the frame, and a rear driving box mounted on the back of the rear vacuum box. A front sealing plate is installed on the outer wall of one side of the bottom frame through a sliding supporting piece, a front vacuum box used for forming a vacuum cavity with the rear vacuum box is fixed to the outer wall of the side, close to the rear vacuum box, of the front sealing plate, and a concentric-square-shaped sealing edge is arranged on the outer side of the front vacuum box. The opening wall edge of the rear vacuum box is provided with a concentric-square-shaped slot used for being embedded with the concentric-square-shaped sealing edge in a sleeved mode. According to the utility model, the front vacuum box and the rear vacuum box are mutually sleeved and sealed, and the concentric-square-shaped sealing edge is arranged at the joint of the front vacuum box and the rear vacuum box, so that the sealing performance can be greatly improved, and compared with a door frame and a door body which are simply and additionally provided with sealing rings, the design can better ensure the sealing performance and reduce the risk of gas leakage.
Owner:GUANGZHOU RONGFAN TECH CO LTD

Mechanical friction spark temperature testing method based on multiple thermocouples and particle size analysis

The invention discloses a mechanical friction spark temperature testing method based on multiple thermocouples and particle size analysis, which comprises the following steps of: 1, preparing a test piece, processing the surface of a friction test piece, and fixing an embedded thermocouple array in the test piece; secondly, dynamic pressure loading is conducted, and friction pressure is adjusted through a high-pressure air bottle and a piston type air cylinder; 3, synchronously monitoring multiple thermocouples, and arranging the thermocouples to synchronously acquire data; step 4, spark particle size capturing: a high-speed camera and a laser particle size analyzer are adopted to acquire particle size distribution and speed track of spark particles in real time; 5, temperature-particle size correlation correction is carried out, and a temperature attenuation model is established based on the specific heat capacity and the heat conductivity coefficient of spark particles; and step 6, data fusion output: fusing and outputting analysis results. A plurality of thermocouple arrays are arranged at the center and the edge of a friction interface and on a spark splashing path, and temperature data in the friction heat and spark cooling process are synchronously collected.
Owner:NANJING TECH UNIV

Testing device for airflow temperature of hot air gun

The utility model provides a device for testing airflow temperature of a hot air gun. The device comprises an airflow protection box body assembly, a hot air gun fixing assembly and a temperature sensor fixing assembly. The airflow protection box body assembly comprises a box body, a heat insulation cabin, a heat flow guider, a flow guide pipe and a noise reduction buffer, and drainage and isolation of high-temperature airflow of the heat gun are achieved. The hot air gun fixing assembly comprises a first guide rail, a sliding seat, a connecting piece and a hoop, and is used for fixing a hot air gun body and adjusting the horizontal distance and the vertical distance between the hot air gun body and the sensor; the sensor fixing assembly comprises a second guide rail, a sliding block and a mounting base, and the temperature sensor is fixed and the distance between a probe and a hot air gun muzzle is adjusted. The device can solve the problem that no fixing device exists during calibration of the heat gun, and ensures that the axial distance from the center of a muzzle of the heat gun to a probe of a temperature sensor meets the requirement during testing; meanwhile, the influence of high-temperature airflow on the detection environment temperature can be effectively prevented, and the risk of burn caused by the high-temperature airflow is avoided.
Owner:STATE OWNED SIDA MASCH MFG CO LTD

Rubber abrasion machine with temperature testing unit

The utility model relates to the technical field of rubber abrasion, and provides a rubber abrasion machine with a temperature testing unit, which comprises an abrasion machine main body and an infrared thermometer, the abrasion machine main body comprises a driving system and a driven system, the driving system comprises an adjustable-speed motor, and the driven system comprises a transmission shaft and a lifting portal frame. The transmission shaft is rotatably mounted on the supporting base through a transmission shaft base, one end of the transmission shaft is connected with an output shaft of the speed regulating motor, the other end of the transmission shaft is coaxially fixed with a friction wheel, and the lifting portal frame is mounted on the supporting base in a liftable manner and is provided with a sample clamping block; the infrared thermometer is installed on the transmission shaft base through the angle adjusting mechanism, and the detection end of the infrared thermometer is located on the side, close to the friction wheel, of the angle adjusting mechanism. According to the utility model, the infrared thermometer which can be fixed on the transmission shaft fixing frame is arranged, so that the uniform positioning of temperature test points in the continuous real-time temperature measurement process is ensured, and the accuracy of rubber abrasion temperature test data results is greatly improved.
Owner:QINGDAO UNIV OF SCI & TECH

Non-magnetic high-temperature testing device and testing method

PendingCN121954078AAddressing the impact of high temperature testingAchieve transshipmentMeasurement apparatus housingsMechanical conveyorsMagnetic disturbanceMechanics
The invention belongs to the technical field of high-temperature testing of pipes, and discloses a non-magnetic high-temperature testing device and a non-magnetic high-temperature testing method. The non-magnetic high-temperature testing device comprises a non-magnetic high-temperature heating cylinder made of a non-magnetic material, a moving and transporting sliding table and a moving and transporting trolley, the non-magnetic high-temperature heating cylinder is provided with a heating layer, and the axis direction of the non-magnetic high-temperature heating cylinder is arranged in the first direction; the moving sliding table is arranged at one end of the non-magnetic high-temperature heating cylinder and can be far away from or close to the non-magnetic high-temperature heating cylinder in the first direction; the moving and transporting sliding table is provided with a moving and transporting track arranged in the first direction, the to-be-tested pipe is supported on the at least two moving and transporting trolleys in a height-adjustable mode, the moving and transporting trolleys can run along the moving and transporting track to drive the to-be-tested pipe to enter or leave the interior of the non-magnetic high-temperature heating cylinder, and the to-be-tested pipe and the non-magnetic high-temperature heating cylinder are coaxial. According to the invention, the influence of magnetic interference on the high-temperature test of the pipe is solved, and the transfer of the to-be-tested pipe with the long-axis characteristic and the improvement of the heating uniformity are facilitated.
Owner:CHINA NAT PETROLEUM CORP +2

A measuring device for the response time of thermocouples

The utility model discloses a kind of thermocouple response time measuring devices, including measuring pipeline, vertical pipeline, electric heating equipment and fixture, one end of measuring pipeline is provided with import, the other end is provided with export, vertical pipeline is vertically set on measuring pipeline, and with the inside of measuring pipeline is communicated, electric heating wire is set on the outer surface of measuring pipeline and vertical pipeline, fixture is located at the top of measuring pipeline, and fixed plate is vertically slidably arranged on fixture;High thermal conductivity lead bismuth liquid is used as medium in the application, heat can be quickly transferred to thermocouple and armored sleeve, reduce the lag caused by sleeve thermal resistance, fit actual working condition, reduce the measurement deviation caused by medium thermal property difference;Electric heating equipment precision temperature control, cooperate with flowing lead bismuth liquid, both ensure that step temperature test is accurate, and simulate actual dynamic heat exchange, avoid the response time misjudgment caused by heat accumulation at sleeve under static state.
Owner:SHENZHEN UNIV

Device for testing temperature rise rate of heating device

The utility model relates to the technical field of temperature testing, and discloses a heating device heating rate testing device which comprises a supporting mechanism and a testing mechanism, the supporting mechanism comprises a supporting seat, a mounting table is fixedly mounted on the right side of the top of the supporting seat, and a lifting groove is formed in the outer wall of the left side of the mounting table; a lifting motor is fixedly mounted at the top of the mounting table above the lifting groove, a bottom output shaft of the lifting motor is fixedly connected with a lead screw, the surface of the lead screw is in threaded connection with a supporting block, the testing mechanism comprises an extension plate fixedly mounted on the outer wall of the left side of the supporting block, and a T-shaped sliding groove is formed in the surface of the extension plate; and a mounting block is slidably connected to the middle of the interior of the T-shaped sliding groove, and a thermodetector is inserted into the bottom of the mounting block. The heating device temperature rise rate testing device can automatically record and analyze data, shortens the workload of operators, reduces personal errors, is convenient to transfer and carry equipment, and is convenient for users to use.
Owner:ZHA TENG TECHNOLOGY (WUXI) CO LTD

Temperature control room for high-temperature test of fan and control system of temperature control room

The invention relates to the field of fan testing, in particular to a temperature control room for fan high-temperature testing and a control system thereof.The temperature control room comprises a controller, a temperature control room body, a heating component, a room door, an air outlet and an airflow control valve, the heating component comprises a main heating assembly with a plurality of output ends, and a plurality of temperature sensors are further arranged in the temperature control room body; the controller is electrically connected with the heating part and used for controlling the heating part to work, the stability and the consistency of the testing environment are ensured by accurately controlling the temperature condition in the temperature control room, and therefore the accuracy and the reliability of the fan temperature testing result are improved. The problems that the fan performance temperature test condition is unstable and the test result is inaccurate under the specific temperature condition are solved.
Owner:NEW CENTURY ELECTRICAL MFG ZHONGSHAN

Aero-engine turbine blade material in-situ mechanical testing system and method

ActiveCN121164070BAccurately reproduce complex stressesBreaking through the limitation of being unable to simulate multi-source loads on bladesMaterial strength using tensile/compressive forcesMaterial strength using steady torsional forcesServo actuatorTurbine blade
This application discloses an in-situ mechanical testing system and method for aero-engine turbine blade materials. The system includes: a multi-axis loading unit for simulating the multi-axis stress state of turbine blades under actual operating conditions; a high-temperature environment module for achieving localized rapid heating of the sample; an in-situ observation system integrating a long-working-distance high-temperature microscope and a high-speed camera for real-time observation and recording of the microscopic damage evolution of the turbine blade sample during high-temperature loading; and a control unit with a built-in temperature-stress decoupling control model and a microscopic defect identification model for real-time compensation of the thermal effects of plastic deformation and quantification of the damage factor D. This application achieves synchronous loading of centrifugal force through a three-axis servo actuator, accurately reproducing composite stress with small load errors, overcoming the limitation of traditional single-axis testing in simulating multi-source loads on blades. Simultaneously, this application reduces interference from plastic work-induced temperature rise, solving the technical problem of data distortion caused by temperature drift in high-temperature testing.
Owner:AECC HUNAN AVIATION POWERPLANT RES INST

Restructuring method for reusing K-type thermocouple temperature sensor

The invention discloses a remanufacturing method for reusing a K-type thermocouple temperature sensor, and the method comprises the steps: shearing a choke plug metal tube through a pair of pliers, taking out an insulating sheath, shearing a burnt section in a connection part of a first metal wire and a second metal wire, separating the first metal wire and the second metal wire, and stripping insulating skins outside the first metal wire and the second metal wire by 1-2cm, the exposed parts of the first metal wire and the second metal wire are fixedly connected, and the connecting part of the first metal wire and the second metal wire is adhered to the shell of the sealing equipment which needs to be sealed during use by using a sealant. By modifying the damaged sensor probe, the damaged sensor can be reused for testing some temperature testing requirements without special tools, and by matching with the sealant and adding a temporary shield to the modified thermocouple probe, temperatures such as air temperature, water temperature and the like with sealing requirements can be more conveniently tested. Tooling procedures are omitted, and convenience and quickness are achieved.
Owner:ANHUI QUANCHAI ENGINE

Detection equipment and fault diagnosis method applied to traffic operation and maintenance heat pump system

The invention discloses detection equipment applied to a traffic operation and maintenance heat pump system and a fault diagnosis method, and belongs to the technical field of traffic infrastructure maintenance, the detection equipment comprises a box body and a heat pump fault tester, and the tester is internally provided with a temperature test unit, a power consumption test unit, a data acquisition unit and a fault analysis unit. The temperature testing unit detects environment temperature and inlet and outlet temperatures of a heat pump condenser and an evaporator. The power consumption testing unit detects operation current of a compressor of a heat pump. Monitoring data are stored in the data acquisition unit, and the fault type is judged and fault information is output through the fault analysis unit. According to the fault diagnosis method provided by the invention, the comparison judgment basis and the fault diagnosis logic of the normal range and the multi-order change interval of the heat pump state index are provided, the real condition of the heat pump can be comprehensively reflected, and an accurate fault type judgment result is given. Fault diagnosis is performed on the heat pump system by taking the temperature and the current as test indexes, and the device is convenient to carry and high in detection efficiency.
Owner:SHIJIAZHUANG TIEDAO UNIV

A high-efficiency real-time constant-temperature control measuring device

The utility model aims at providing a kind of high-efficient real-time constant-temperature control measuring device of constant temperature control and monitoring provided by simulation heat source.It is provided that the utility model includes heating unit, control unit and temperature acquisition unit, the control unit includes processor and heating control module connected by electric signal, the temperature acquisition unit acquires the temperature data of the heating unit and is connected with the processor by electric signal, the heating control module includes two-way control module, controllable power output module, controllable constant-current source module and current acquisition module, one output of the two-way control module is connected to the controllable power output module, another output of the two-way control module is connected with the controllable constant-current source module, the output of the controllable power output module is connected with the controllable constant-current source module, and the controllable constant-current source module is electrically connected with the heating unit.The utility model is applied to the technical field of temperature test.
Owner:INTELLIGENT AUTOMATION ZHUHAI CO LTD

A method for measuring deformation and displacement of high-temperature tensile test specimens

A method for measuring the deformation displacement of a high-temperature tensile test specimen belongs to the field of experimental mechanics high-temperature testing technology, and solves the problem of electronic components being unable to withstand high temperatures and having low precision in deformation displacement measurement in high-temperature environments. The method of the present invention is implemented through a high-temperature displacement measurement module, a normal-temperature displacement measurement module, and a connection module. A pair of high-temperature resistant sliders are provided in the high-temperature box, each connected to a retractable high-temperature contact, and can slide along a guide rod parallel to the axis of the specimen; each slider is staggeredly connected to the lower and upper normal-temperature sliders on the same axis outside the high-temperature box through a high-temperature resistant and inelastic silk thread, converting the high-temperature environment displacement to a normal-temperature environment; then, the dynamic relative displacement of the two normal-temperature sliders is measured by a normal-temperature extensometer and introduced into the tensile test system. The method of the present invention breaks through the limitations of high-temperature environments on electronic components for displacement measurement, has the characteristics of a wide range of applications, high measurement precision, and low cost, and is suitable for deformation displacement measurement in metal tensile tests over a large temperature range.
Owner:HENAN POLYTECHNIC UNIV

Heat conduction testing device in vacuum environment

The utility model provides a heat conduction testing device in a vacuum environment. When a product is tested, the product to be tested is placed on the test fixture in the vacuum box through the vacuum cover plate door, then the vacuum generator vacuumizes the interior of the vacuum box, meanwhile, the air pressure sensor monitors the air pressure in the vacuum box until the air pressure in the vacuum box reaches a set negative pressure value, and then the test fixture is started. The heating circulation system heats or cools a to-be-tested product on the test fixture through a temperature conducting medium for providing the temperature of the water cooling plate conveying belt, and meanwhile, the test fixture monitors the temperature of the to-be-tested product through a temperature monitoring element, so that a temperature test environment is provided for the to-be-tested product; the product to be tested is isolated from the outside through the vacuum environment, so that when the product is tested, the influence of external temperature change and fluctuation and interference of other impurities such as heat radiation and the like on the stability and the accuracy of the test can be effectively avoided; the utility model belongs to the technical field of test equipment.
Owner:INTELLIGENT AUTOMATION ZHUHAI CO LTD

Two-phase separation temperature testing device

This utility model relates to the field of lubricating oil performance testing technology, specifically a two-phase separation temperature testing device, including a sapphire autoclave. A testing component is mounted on the top of the sapphire autoclave, and a protective component is mounted on one side of the autoclave. The testing component includes a sealed top cover, and a first sample inlet tube is fixedly connected inside the sealed top cover. This two-phase separation temperature testing device, by installing the testing component, allows the first and second sample inlet tubes to be inlet pipes for refrigerant and refrigeration oil at room temperature. A "constant pressure injection vessel" achieves high-temperature, constant-pressure refrigerant injection, thereby changing the refrigerant / refrigeration oil ratio in the system. This allows for continuous testing without cooling, saving testing time.
Owner:FOSHAN SHUNDE FUYANSHENG LUBRICANT

A four-channel ball pin high and low temperature durability test bench

The present invention relates to the field of ball pin testing technology, and discloses a four-channel ball pin high and low temperature durability test bench, comprising a test bench, a test box, a boat-shaped swing group, and a ball pin. The test box is fixedly connected to the top of the test bench, the boat-shaped swing group is rotatably connected to the inside of the test box, and the ball pin is clamped to the top of the boat-shaped swing group. The inside of the test box is provided with a quick fixing component for assisting in quick fixing of the ball pin, and the outer wall of the test bench is provided with an auxiliary cooling component for performing low-temperature testing on the ball pin. Through the setting of the quick fixing component, when the button column stops being pressed, the first return spring pushes the button column and the funnel-shaped limit column to rise, and the funnel-shaped limit column will push the limit bead outward to make it conflict with the limit groove inside the lower hemisphere groove sealing block. The traditional ball pin durability test bench requires complicated bolt and nut tightening or clamp clamping, etc., and the fixing method of the above structure is simpler and faster to operate, thereby improving the test efficiency.
Owner:YUHUAN ZHENGSHI MASCH RESPONSIBILITY CO LTD

Test fixture and device

The application relates to a test fixture and device, the test fixture comprises a crimping module and a plurality of temperature control modules, the plurality of temperature control modules are arranged on the crimping module at intervals, and the plurality of temperature control modules respectively obtain the temperature of each area of the crimping module. According to the test fixture provided by the invention, the temperature control module independently obtains the temperature of each area of the crimping module, the temperature of each area of the crimping module can be independently adjusted to the preset temperature, and when the crimping module crimps the product to be tested, the crimping module conducts heat to the product to be tested to simulate the temperature test environment of the product to be tested, so that the test efficiency is improved. The plurality of temperature control modules can independently acquire the temperature of each area of the crimping module, so that the temperature sensing precision of each area of the crimping module is improved, the temperature of each area of the crimping module is independently controlled, the temperature control and adjustment precision of the crimping module is improved, and the test precision and reliability of the to-be-tested product under the preset temperature condition are further improved.
Owner:SUZHOU HUAXING YUANCHUANG TECH CO LTD

Sealant performance detection equipment

The utility model provides sealant performance detection equipment, which comprises a heat insulation box, a heating assembly, a temperature detection assembly and a test assembly, a heating cavity is formed in the heat insulation box, a test seat is arranged in the heating cavity, the test seat is used for placing sealant, the heating assembly is arranged in the heating cavity, the temperature detection assembly is arranged around the test seat, and the temperature detection assembly is arranged around the test seat. One end of the testing assembly is arranged in the heat preservation box, and the other end of the testing assembly penetrates through the heat preservation box and extends into the heating cavity so as to test the sealant of the testing seat. According to the sealant performance detection equipment provided by the invention, the test assembly is arranged in the heat preservation box, and the temperature in the heat preservation box is cooperatively controlled through the heating assembly and the temperature test assembly, so that the temperature of the test assembly during an experiment is controlled, and the problem that some sealant performance detection equipment can only be used for an experiment at room temperature is solved.
Owner:SHENZHEN FUTURE NEW MATERIAL IND CO LTD