68 results about "Performance measuring device" patented technology

The invention discloses a multi-channel step-in growth performance measuring system and method for flat-raised poultry, and belongs to the field of poultry farming, the method adopts a step-in multi-channel growth performance measuring device structure based on behavior characteristics so as to adapt to poultry farming groups of different scales, flexible expansion and deployment are realized, and the measuring accuracy is improved. Through a signal calibration matching strategy, RFID signals of different channels are accurately matched with data of a strain sensor to ensure that the signals of the different channels do not interfere with each other, error-free individual information identification is realized, the RFID technology is utilized to record the activity frequency and the residence time of poultry in different areas, the activity distribution rule of the poultry is analyzed, and the identification accuracy is improved. Data support is provided for further behavior research and health status, a large amount of effective data support is provided for screening of excellent poultry, unmanned automatic monitoring of the poultry farm is realized, the production benefit of the poultry farm is improved, poultry group stress caused by manual operation is reduced, and normalization and reliability of data acquisition are ensured.

To provide a thermal conductor, a heating device, a heat treatment apparatus, and a heat conduction performance measuring device capable of applying a high heat quantity to a work with an optional area and shape.SOLUTION: A thermal conductor includes: a heat receiving section 23 having a heat receiving surface for receiving heat from a heat source 10; a heat constriction section 24 that is continuous to the heat receiving section 23 and has a tapered shape that is thinned in a direction separated from the heat receiving section 23; and a heat radiation section 22 that has columnar structure extending in a first direction from the end of the heat constriction section 24 and transfers heat by allowing the tip of the columnar structure to abut on a work. A sectional area in an orthogonal direction relative to the first direction of columnar structure is smaller than a sectional area in an orthogonal direction of the heat receiving section 23.SELECTED DRAWING: Figure 1

The invention provides a phase state interference performance measuring device and method, and mainly relates to the technical field of quantum information. The measuring device comprises a pulse preparation module which is configured to generate an optical pulse pair at a preset frequency; the unequal arm interferometer is configured to perform interference processing on the light pulse pairs based on the long and short arm delay difference to obtain interference pulse signals and non-interference pulse signals corresponding to each light pulse pair; the measuring module is configured to measure the interference pulse signals and the non-interference pulse signals corresponding to the multiple optical pulse pairs respectively to obtain detection responses of the multiple interference pulse signals and detection responses of the multiple non-interference pulse signals; and a data processing module configured to determine response counts of interference peak positions and response counts of non-interference peak positions in a plurality of sampling periods based on the detection responses of the plurality of interference pulse signals and the detection responses of the plurality of non-interference pulse signals so as to obtain a phase state interference result and a phase state non-interference result.

The application discloses a subsonic wind tunnel ducted fan aerodynamic performance measuring device and a measuring method, and belongs to the technical field of special wind tunnel test testing. The ducted fan nacelle comprises an inner side and an outer side, the inner side is provided with an inlet total static pressure rake and a fan rear end total temperature total pressure rake, the inlet total static pressure rake is arranged in front of a ducted fan rotor and a hub, a stator hub is provided with a stator rear end total temperature total pressure rake, the stator rear end total temperature total pressure rake is the same in structure with the fan rear end total temperature total pressure rake, and the stator rear end total temperature total pressure rake is arranged at a rear end of a stator blade. The application discloses a subsonic wind tunnel ducted fan aerodynamic performance measuring device and a measuring method, and belongs to the technical field of special wind tunnel test testing.

The utility model discloses a vertical pump cavitation testing device and system, the device comprises an upper component, a partition plate, a to-be-tested impeller assembly with a lower shaft, and a lower component, the upper component comprises a driving assembly and an upper shaft driven by the driving assembly to rotate; the partition plate is arranged between the upper component and the lower component, a liquid inlet area is formed on the lower side of the partition plate, and a liquid outlet area is formed on the upper side of the partition plate; the lower shaft of the impeller assembly to be tested is connected with the upper shaft of the upper component through a coupling; a communication hole is formed in the middle of the partition plate, the lower shaft is arranged in the communication hole in a penetrating mode, and an impeller of the impeller assembly to be tested can drive liquid to enter the liquid outlet area from the liquid inlet area through the communication hole. The cavitation performance measuring device has the advantages of being high in cavitation performance measuring accuracy, simplifying the test process, saving the test time and saving the test cost.

The application relates to a bearing lubrication performance measuring device under outer ring driving, and belongs to the technical field of lubrication experiments. The device comprises an operation platform, a driving device, a loading device, a testing device and a torque acquisition system. The driving device is connected with the testing device through a shaft coupling, drives the testing sleeve to rotate to simulate the driving working condition of the bearing outer ring; the loading device applies and measures the load on the testing bearing through a thrust bearing, a pressure sensor and a butterfly spring; the torque acquisition system acquires torque data in the testing process in real time. The testing main shaft and the loading shaft system are internally provided with oil channels, lubricant can be supplemented in time, and the butterfly spring in the supporting sleeve plays the roles of buffering and keeping the load stable. The device can truly simulate the high-speed rotating working condition of the bearing outer ring, synchronously measure torque, load and rotating speed parameters, the platform level can be adjusted through adjusting screws, the bearing pre-tightening force is adjustable, the testing bearing is convenient to replace, and the device is suitable for the testing and evaluation of the lubrication performance of space bearings.

The present invention relates to the technical field of towel tensile strength measuring devices, specifically a towel production tensile strength measuring device, comprising a base, a collision detection device is arranged on the top of the support platform, a towel clamping device is arranged on the bottom of the collision detection device, the connecting plate is fixedly connected to the bottom of the hydraulic telescopic rod, the connecting plate is fixedly connected to the bottom of the hydraulic telescopic rod, and the connecting bottom column is fixedly connected to the bottom of the connecting plate. The towel production tensile strength measuring device is provided with a towel clamping device, and the lower end of the towel naturally falls to the position between the limiting ring and the second towel clamping plate, and then the air pump on the side of the box is started to input gas into the inside of the connecting thin air tube, so that the airbag is inflated, and then the limiting ring and the second towel clamping plate are moved in a direction close to each other until the towel is pressed together. The above-mentioned structure has an adjustment function, and the pressing tightness is high, and it will not loosen even if it is stretched and broken.

The invention provides a nuclear energy engineering design performance measuring device and method, and relates to the technical field of nuclear energy engineering management. The nuclear energy engineering design performance measurement device comprises a data acquisition module, an intelligent algorithm processing module, a performance calculation module and a visual decision support module. The data acquisition module is used for acquiring calculation data; the intelligent algorithm processing module is used for respectively obtaining design result complexity, quality risk data, collaborative efficiency data and weight parameters according to the calculation data; the performance calculation module is used for calculating resource efficiency performance, design result completion performance, quality risk performance and collaborative efficiency performance according to the calculation data, the design result complexity, the quality risk data and the collaborative efficiency data; according to the weight parameters, carrying out weighted calculation on the design result completion performance, the resource efficiency performance, the quality risk performance and the collaborative efficiency performance to obtain design comprehensive performance; and the visual decision support module is used for visually displaying the calculation result.

The utility model discloses a soft material dynamic adhesion performance measuring device, which relates to the field of pressure-sensitive adhesive adhesion performance testing and comprises an experimental testing mechanism, a synchronous observation mechanism and a data processing mechanism. The synchronous observation mechanism is positioned outside the experimental testing mechanism and is used for synchronously observing the experimental testing mechanism; the data processing mechanism is connected with the synchronous observation mechanism through a data connecting line, and the data processing mechanism is used for integrating test data of the synchronous observation mechanism. According to the device for measuring the dynamic adhesion performance of the soft material, the dynamic adhesion performance of the material is calculated by observing the movement speed of the volute spiral spring, and a new technical scheme is provided for characterization of the dynamic adhesion performance of the material.

The invention relates to the field of optical measurement, in particular to a dynamic performance measuring device and method for a fast reflecting mirror, and the device comprises a swing table which is used for simulating the external dynamic disturbance of the fast reflecting mirror; the gyroscope is used for collecting motion data of an azimuth axis and a pitch axis of the swing table; the main control upper computer is used for controlling the swinging table to swing; the fast reflecting mirror controller is used for receiving motion data of the swing table monitored by the gyroscope in real time and generating a reverse control signal according to the received motion data to control the fast reflecting mirror to perform reverse compensation motion, and the camera is used for collecting image data of light spots on the fast reflecting mirror; and the image acquisition and analysis upper computer analyzes the motion trail of the light spot according to the received image data, calculates the drift rate of the gyroscope, and obtains the compensation effect of the fast reflecting mirror on the motion of the swing table in the single-axis direction, so that the single-axis compensation dynamic performance of the fast reflecting mirror is tested. According to the invention, the compensation performance of the fast steering mirror under different working conditions can be accurately and conveniently evaluated.

The application discloses a kind of damping material damping performance measuring device and measuring method, belong to material performance test field.The box is provided with test cavity in box;Test cavity is provided with the upper die plate and lower die plate arranged in upper and lower, the upper die plate and lower die plate are used to clamp the damping material to be measured between upper die plate and lower die plate;Test cavity is provided with gravity ball above upper die plate, gravity ball is connected with the lifting release mechanism that gravity ball is lifted upwards and gravity ball is released downwards;Upper die plate and lower die plate are respectively provided with vibration sensor for collecting the vibration data of upper die plate and lower die plate, vibration sensor is connected with microprocessor.The application has the advantages of simple structure, small volume, convenient to use, high efficiency, can quickly and effectively evaluate the damping performance of damping material, obtain the characteristics of damping material, compare the difference of damping effect of different damping materials.

The invention provides a nuclear energy engineering debugging performance measuring device and method, and relates to the technical field of nuclear energy engineering management. The nuclear energy engineering debugging performance measuring device comprises a data acquisition layer, an analysis layer and a display early warning layer, wherein the data acquisition layer is configured to obtain calculation data for calculating nuclear energy engineering debugging performance; the analysis layer comprises a weight optimization module, a performance calculation module and an anomaly diagnosis module, wherein the weight optimization module is configured to obtain a corresponding weight according to the real-time data; the performance calculation module is configured to respectively calculate debugging preparation performance, debugging implementation performance and debugging management performance according to the calculation data, and calculate nuclear energy project debugging performance according to the debugging preparation performance, the debugging implementation performance, the debugging management performance and corresponding weights; the abnormity diagnosis module is configured to analyze the calculation result to judge whether an early warning threshold value is triggered or not; and the display early warning layer is configured to display the calculation result on a user interface, and send an early warning signal in response to the trigger early warning threshold.

The utility model discloses a multifunctional SPECT (Single Photon Emission Computed Tomography) performance measuring device, which relates to the medical equipment detection technology and comprises a spring buckle, a connecting piece, a telescopic rod and a circular truncated cone container, a spring buckle is arranged on the base, a clamping foot clamped on a medical bed is arranged in the spring buckle, the connecting piece is rotationally installed on the spring buckle, the telescopic rod is detachably installed in the connecting piece, the circular truncated cone container is detachably installed above the telescopic rod, and a containing cavity used for containing a radioactive source is formed in the circular truncated cone container. According to the device, multi-dimensional adjustment of the height and the direction of the radioactive source in the circular truncated cone container is achieved, the device is easy and convenient to adjust and operate, the loading and unloading time of the device is shortened, the radiation dose of operators is greatly reduced, and the device can measure multiple performance indexes such as inherent spatial resolution, inherent spatial linearity and fault spatial resolution of SPECT equipment.

A tire running performance measurement device 1 for measuring the running performance of a measurement target tire ET includes: a vehicle V; and a measurement target tire support tool S configured separately from the vehicle yet attached to the vehicle, and configured to support the measurement target tire. The measurement target tire support tool is configured to be able to adjust a load applied to the measurement target tire.

The utility model belongs to the field of investment casting ceramic slurry, and relates to an automatic slurry performance measuring device. Comprising an overturning mechanism, a rotating mechanism, a fixing device, a slurry performance detection sensor and a sensor cleaning box, the overturning mechanism comprises an upper connecting piece, a lower connecting piece and a first rotating air cylinder, one side of the upper connecting piece is connected with one end of the first rotating air cylinder, and one side of the lower connecting piece is connected with the other end of the first rotating air cylinder and used for achieving overturning movement; the rotating mechanism comprises an F-shaped side connecting piece and a second rotating air cylinder, a lower plate of the F-shaped side connecting piece is connected with one end of the second rotating air cylinder, and the other end of the second rotating air cylinder penetrates through an upper plate of the F-shaped side connecting piece to be connected with the lower connecting piece and is used for achieving rotating motion; the upper end of the fixing device is connected with the lower end of the F-shaped side connecting piece, and the lower end of the fixing device is used for fixing a slurry cylinder; the slurry performance detection sensor is fixed at the end part of the upper connecting piece; the sensor cleaning box is used for containing a cleaning solution.

The invention discloses a mobile beef cattle breeding performance measuring device. The device comprises a base, a bottom plate, a top plate and a moving frame, the base is provided with walking wheels and a sliding through groove, a main threaded rod and a moving block are arranged in the base, and the moving block is connected with the bottom plate through a rotating rod and can drive the moving frame to move synchronously; the main threaded rod drives the top plate to press downwards through a belt wheel and a gear and rack transmission mechanism, and synchronous limiting of the beef cattle in the up-down and left-right directions is achieved under control of a single motor. The device is further provided with an auxiliary threaded rod and a second fixing rack, the distance between the movable frames and the height of the top plate can be finely adjusted, and beef cattle of different body types can be adapted. The arrangement of the head limiting assembly and the inflatable air bag further improves the limiting stability and animal comfort. The device has the advantages of being convenient to move, easy to operate and high in adaptability, and is suitable for efficient, safe and low-stress fixation of beef cattle in breeding determination.

To perform a tire performance evaluation more easily by using a new method different from a conventional real vehicle driving test and a drum-type bench test.SOLUTION: A tire performance measuring method for measuring the performance of a tire for a test vehicle includes: a step of installing in-wheel motors (12-1 to 12-4) on the inside of tire wheels of tires (11-1 to 11-4); a driving force generation step of generating driving forces (F1 to F4) equally in the in-wheel motors (12-1 to 12-4) so that the test vehicle does not move forward or rearward and stays at the place; a step of gradually and equally increasing the driving forces, and when any of the tires slips, determining the driving force at the start of slip of the tire; and a calculation step of calculating a coefficient of friction in the direction of travel or the direction of revolution from the driving force at the start of slip.SELECTED DRAWING: Figure 2

The utility model discloses a heating radiator thermal work performance measuring device which comprises a thermal work performance measuring device body, and the left side of the thermal work performance measuring device body is communicated with a fixed pipe. The cooling piece is started to cool the red copper block, then the back face of the water tank is cooled through the red copper block, the temperature of water can be reduced, meanwhile, the cooling fan and the cooling block are started to conduct cooling treatment on the hot face of the cooling piece, the fan is started to blow air into the heat exchange pipe, and the cooling effect is improved. Air enters the heat exchange pipe and makes contact with cooling water to be cooled, low-temperature air is transmitted into the heat-work performance measuring device body through the branch pipe, the interior of the heat-work performance measuring device body is cooled, and the heat-work performance measuring device body achieves the active and safe heat dissipation effect; and an existing air passive heat dissipation mode is replaced, so that active heat dissipation can be achieved, and the safety is high.

The utility model discloses a quick sealing performance measuring device for a normal pressure storage tank, and particularly relates to the technical field of special equipment sealing performance detection, the quick sealing performance measuring device comprises a tank opening, a butt joint table and a cover plate, the cover plate is fixed at the top end of the butt joint table, and a sealing performance detection assembly is arranged at the top end of the cover plate. By arranging the pressurizing pipe and the pressure gauge, when the cover plate is used, the butt joint table on the bottom side of the cover plate can be inserted into the inner side of the tank opening of the normal-pressure storage tank to cover the outer side of the tank opening for use, and at the moment, pressure gas can be conveyed into the tank opening through the external pipe box to change the pressure state in the storage tank; the pressure state in the storage tank can be detected and fed back through the pressure gauge, the state can be maintained and observed for a period of time along with the change of a pointer of the pressure gauge, an operator can be assisted in judging the sealing performance of the storage tank through the state of the pointer of the pressure gauge, and the detection efficiency of the rapid sealing performance measuring device is enhanced.

The invention discloses a radioactive substance transportation container cover plate shielding performance measuring device, which comprises a cover plate mounting frame used for supporting a container cover plate, a moving frame is movably arranged below the cover plate mounting frame, a collimator is arranged on the moving frame, an access channel is formed in the collimator and is used for entering and taking out a radioactive source, and the radioactive substance transportation container cover plate is arranged in the access channel. And a detector is arranged above the cover plate mounting frame. According to the invention, the cover plate can be placed on the cover plate mounting rack, the collimator is driven by the moving rack to move to the outside of the cover plate mounting rack to mount the radioactive source, the moving rack can drive the collimator to move to the lower part of the cover plate mounting rack after mounting is completed, and the cover plate can shield released radiation. The shielding performance of the cover plate is detected through the radiation value detected by the detector above the cover plate, the radioactive source can be conveniently placed in, the cover plate can be conveniently installed, the shielding performance of the cover plate can be conveniently tested, radiation irradiation borne by workers can be reduced, and the testing safety can be improved.

A kind of hydrogen energy LH2 / LNG ultralow temperature pull-off valve performance measuring device, installation groove is equipped in installation table upper end, left end chassis and right end chassis are distributed left and right with installation groove connection, high-pressure barrel assembly is equipped on left end chassis, high-pressure barrel cover assembly, hydraulic cylinder assembly is equipped on right end chassis and is connected with flange barrel assembly by tension rope, the left end of measured valve is connected with high-pressure barrel assembly, the right end of measured valve is connected with flange barrel assembly, high-pressure barrel cover assembly, flange barrel assembly and hydraulic cylinder assembly are connected with data control system;Form low-temperature multi-phase pull-off performance test loop, low-temperature sealing test loop and low-temperature high-pressure impact test loop.The main advantages are: the installation table, chassis, tension system integration prototype design, realize device structure simplification, manufacturing cost reduction, operation and safety and measurement accuracy are improved, meet the low-temperature sealing, high-pressure impact and axial, 45 ° and 90 ° multi-phase pull-off performance core index test requirements of measured piece.

The invention discloses a device and a method for measuring aerodynamic performance of a ducted fan of a subsonic wind tunnel, and belongs to the technical field of special wind tunnel test. The invention solves the problem that the prior art does not relate to a system for measuring the aerodynamic performance of a scaled ducted fan model in a large subsonic wind tunnel and cannot meet the measurement requirement in the design of a ducted fan engine. The ducted fan nacelle comprises a ducted fan nacelle inner side and a ducted fan nacelle outer side, an inlet total static pressure rake and a fan rear end total temperature total pressure rake are installed on the ducted fan nacelle inner side, and the inlet total static pressure rake is arranged at the front ends of a ducted fan rotor and a propeller hub; a stator rear-end total temperature and total pressure rake is installed on the stator hub, the stator rear-end total temperature and total pressure rake and the fan rear-end total temperature and total pressure rake are the same in structure, and the stator rear-end total temperature and total pressure rake is arranged at the rear ends of the stator blades. According to the device and method for measuring the aerodynamic performance of the ducted fan of the subsonic wind tunnel, quantitative evaluation of the fan efficiency, pressurization and flow characteristics of a ducted fan scaling model is achieved.

The application provides a mobile beef cattle breeding performance measuring device. The mobile beef cattle breeding performance measuring device comprises a bottom plate, a first support frame is fixedly installed on the top of the bottom plate, one side of the first support frame is provided with an opening, a second support frame is arranged on the first support frame, a first lifting mechanism is arranged on the top of the second support frame, a sling is arranged in the first support frame, stretch mechanisms are arranged on the two sides of the sling, the stretch mechanisms are used for stretching and contracting the width of the sling, the stretch mechanisms are connected with the first lifting mechanism, a conveying belt is fixedly installed on the top of the bottom plate, and the conveying belt is located in the first support frame. The mobile beef cattle breeding performance measuring device has the advantages that beef cattle can be conveniently put in, the beef cattle can be hung up to reduce the probability of stress reaction of the beef cattle and reduce the damage of stress reaction of the beef cattle.

The utility model discloses a sulfur removal performance measuring device for a sulfur removal agent. The sulfur removal performance measuring device comprises a container and a discharge pipe, wherein the discharge pipe is arranged on a supporting table in a liftable manner; the bottom side of the end part of the discharge pipe is provided with a valve; the cover body is fixed above the container, and a stirring mechanism is arranged in the cover body; and the sealing piece is arranged at the outer end of the top of the container in a sleeving mode, and when the container ascends, sealing is achieved between the sealing piece and the inner wall of the cover body. According to the measuring device, through combination of the cover body and the container, rapid sealing is realized under the action of the sealing piece, so that the sulfur removal agent reacts in a closed state, and the measuring device is simple in structure and convenient and rapid to operate.

The utility model relates to the technical field of self-compacting concrete working performance measurement, and discloses a continuous self-compacting concrete working performance measuring device which comprises a measuring table, a circular plate fixedly mounted on the surface of the measuring table, and a fixing rod fixedly mounted on the surface of the measuring table. According to the continuous self-compacting concrete working performance measuring device, through the arrangement of a control assembly, when a supporting block is propped against, a vertical rod fixed on the surface of the supporting block drives a moving block to slide on the surface of a supporting plate under the support of a second spring; a sliding rod fixed to the surface of a moving block slides in an arc-shaped groove formed in the surface of a round rod, the round rod is stressed to drive a buffer plate to swing, and due to the fact that the moving block transversely reciprocates, the buffer plate can continuously swing at the bottom of a discharging pipe to buffer impact force of discharged concrete; and the situation that the circular plate is broken and damaged due to too large impact force is avoided.

The present invention discloses a multi-channel walk-in flat poultry growth performance measurement system and method, belonging to the field of poultry farming. The method adopts a walk-in multi-channel structure of a growth performance measurement device based on behavioral characteristics to adapt to poultry farming groups of different scales, realizing flexible expansion and deployment. Through a signal calibration and matching strategy, the RFID signals of different channels are accurately matched with the data of strain sensors to ensure that the signals between different channels do not interfere with each other, achieving error-free individual information identification. Using RFID technology to record the activity frequency and residence time of poultry in different areas, analyzing their activity distribution rules, providing data support for further behavioral research and health status, providing a large amount of effective data support for the screening of excellent poultry, and realizing unmanned automatic monitoring of the farm, improving the production efficiency of the poultry farm, reducing the stress of the poultry group caused by manual operation, and ensuring the standardization and reliability of data collection.

The invention discloses an air floatation moving bearing surface type supercritical carbon dioxide static pressure thrust bearing pressure distribution measuring device, and belongs to the field of gas lubrication and performance detection. The device mainly comprises a vibration isolation plate, a bearing platform with a pressure measuring hole, a linear air floating guide rail, an arc-shaped air floating guide rail, a double-layer chamber, a labyrinth seal, a static pressure gas bearing, a sensor and a collector. According to the device, the two-dimensional, non-contact and friction-free movement of the bearing platform is realized by combining the air floating guide rail and the labyrinth seal, the pressure measuring hole is driven to be aligned with any position to be measured, and the continuous and complete measurement of the pressure of the bearing surface is completed. An inner-layer cavity of the device is used for containing supercritical carbon dioxide and a hydrostatic bearing; compressed air is introduced into the outer-layer cavity to form a positive-pressure air barrier, so that a medium in the inner cavity is prevented from leaking to the atmospheric environment. The method solves the problem that a traditional method is limited in measuring points and cannot adapt to the supercritical carbon dioxide medium environment, and can also be used for pressure distribution testing of other high-pressure and special medium hydrostatic bearings.

The invention provides a device and a method for measuring the sound insulation performance of a translational compressible sealing element, and belongs to the technical field of aircraft noise control. The device comprises an acoustic measurement box with an opening; the number of the horizontal sliding cover plates is two, and the two horizontal sliding cover plates are in butt joint with each other, so that a mounting surface of the sealing element is formed at the butt joint surface; the cover plate sliding restraining device is of an asymmetric U-shaped structure, the short edge of the U-shaped structure is fixed to the edge of the outer side of the opening of the acoustic measurement box, and a gap is formed between the long edge of the U-shaped structure and the edge of the opening of the acoustic measurement box; the horizontal sliding cover plate is arranged in a gap between the cover plate sliding restraint device and the acoustic measurement box; and the compression screw is installed on the cover plate sliding restraining device and used for locking the horizontal sliding cover plate, and the horizontal sliding cover plate is locked through the compression screw, so that the sealing piece is in a stable compression state.

The invention relates to the field of chip performance detection, and discloses a detector chip performance measuring device and method, and the device comprises a test pedestal with a groove which is used for accommodating a to-be-tested detector chip and a cooling medium; the sample table is positioned in the groove and is used for placing a detector chip; the temperature measuring meter is used for measuring the temperature of the detector chip; and the parameter analyzer is used for being connected with the detector chip and collecting parameters of the detector chip when the temperature of the detector chip reaches the working temperature after the cooling medium is moved away. According to the invention, the cooling medium is used for cooling firstly, and after the cooling medium is moved away, the parameters of the detector chip are measured in a slow temperature rise mode, the detector chip does not need to be packaged in a Dewar structure for testing, tedious technological processes such as Dewar packaging exhaust and coupling of a refrigerating machine are avoided, the testing process is simple, and the testing efficiency is improved. A large number of personnel are not needed to participate in the test, the test time is shortened, and the test efficiency is greatly improved.

This invention relates to the field of film shrinkage measurement technology, encompassing clamping plates, a fixture for preventing sample strip detachment, and a device for measuring the heat shrinkage properties of films. The fixture includes fastening bolts and two symmetrically arranged clamping plate bodies. The fastening bolts pass through and connect the two clamping plate bodies, clamping the sample strip between them. A first arc-shaped groove is formed on one side of each clamping plate body, and a second groove extending perpendicular to the length of the sample strip is formed on the opposite side. A rubber pad is placed within the second groove, and the rubber pad has several protrusions arranged in an array to compress the end of the sample strip. This clamping plate structure increases the friction between the clamping plate and the sample strip, making it less likely for the sample strip to detach. Simultaneously, the clamping force is evenly distributed, avoiding localized damage to the sample strip and reducing the risk of detachment. The control system of the film heat shrinkage performance measuring device combines the detected pressure data to control the device's operating status in real time, reducing wasted time and improving testing reliability.