649 results about "Rapid testing" patented technology

The present invention discloses a system and method for quickly testing the anti-hydrolysis performance of LED chips, wherein the system comprises: a temperature and humidity regulator, the temperature and humidity regulator is provided with a cavity; a rotating device connected to the inner wall of the cavity, the rotating device can rotate along the inner wall of the cavity; a bracket, the bracket is a cup-shaped structure, the LED chip is mounted on the bracket and forms a conductive connection with the bracket; a test substrate, the bracket is fixed on the test substrate, and the bracket is conductively connected to the test substrate, and the test substrate is connected to the rotating device; the direction of the LED chip is adjusted by the rotating device, a reverse voltage is passed to the test substrate, and the temperature and humidity in the cavity are adjusted to perform an impact test on the LED chip. The direction of the LED chip is adjusted by the rotating device, and the hydrolysis speed of the LED chip is effectively accelerated, thereby shortening the detection time.

The invention relates to the technical field of transistor detection, in particular to a quick test method and system for an MOSFET device. The method comprises the following steps: acquiring and integrating multi-source parallel data of the MOSFET device to obtain real-time I-V characteristic data of the device; performing MOSFET device performance prediction based on the real-time device I-V characteristic data to obtain MOSFET device performance prediction data; screening according to the performance prediction data of the MOSFET device to obtain performance data of a primarily screened qualified device; performing adjustment based on the performance data of the preliminarily screened qualified device to obtain an MOSFET device test scheme; acquiring real-time test data of the MOSFET device, and screening qualified devices to obtain performance data of re-screened qualified devices; and performing device test summarization based on the performance data of the primarily screened qualified device and the performance data of the secondarily screened qualified device to obtain an MOSFET device test report. According to the invention, the test period can be shortened.

The invention relates to the technical field of robot joints, and particularly discloses a robot joint performance testing device which comprises a base, two vertical plates are installed in the middle of the top of the base, a clamping mechanism is arranged between the two vertical plates, and the top of the base is connected with a moving column through two first electric telescopic rods. A moving frame is arranged between the two moving columns, a plurality of balancing weights are arranged in the moving frame, a pushing mechanism is arranged at the top of the moving frame, a connecting frame is arranged at the bottom of the moving frame, an elastic sealing cover is installed between the moving frame and the connecting frame, and a driving mechanism is installed at the bottom of the moving frame. According to the device, through the arrangement of the pushing mechanism, the multiple balancing weights can be sequentially and automatically installed at the tops of the two second installation plates, loads of different weights at the rotating end of the robot joint can be conveniently tested, manual disassembly and assembly of the multiple balancing weights are avoided, and the working efficiency is improved. And the use requirements of people on rapid testing of the joint performance of a large batch of robots can be met.

The invention provides a memory test system and method, and the system comprises a test temperature box which is used for regulating and controlling the environment temperature; the processing module is used for acquiring environment temperatures and sending different read-write instructions and corresponding test data to the memory at different environment temperatures; the power consumption module is used for monitoring power consumption data of the memory; the power consumption module is also used for transmitting the power consumption data to the processing module; wherein the memory executes a read-write operation according to a read-write instruction, and transmits a master control temperature of a master control unit of the memory and a flash memory temperature of a flash memory unit to the processing module; and the processing module is also used for calculating a read-write performance value according to the test data when the memory executes the read-write operation. According to the test system and the test method for the memory, the correlation of the performance, the power consumption and the temperature of the memory in various application scenes can be rapidly tested.

The invention discloses a method and device for testing the fatigue crack growth rate of a metal material based on temperature gradient change, and relates to the technical field of metal material detection. Mounting a constant low-temperature component and a constant high-temperature component close to two ends of the sample respectively; pasting a plurality of thermocouples on the middle surface of the sample; a magnetic powder dynamic moving assembly is installed on the surface of the sample, and a constant-temperature state is given to magnetic powder; loading a bidirectional tension-compression fatigue testing machine along the through hole of the sample; a thermal imager is arranged far away from the parallel sample, and a thermal imaging image is shot; according to the data, the fatigue crack growth rate of the sample at the corresponding temperature is obtained; according to the method, the fatigue crack growth rate of the metal material can be rapidly tested, meanwhile, the temperature gradient is formed in the sample, the influence of the temperature on the crack growth rate can be obtained in different temperature areas, the device required by the whole test is simple in structure, low in cost and convenient to load and disassemble, and the whole efficiency of the test is effectively improved.

The invention discloses a bridge dynamic performance rapid evaluation method based on dynamic displacement multi-parameter analysis. The method comprises the core steps that S1, a bridge theoretical fundamental frequency f theory and a theoretical impact coefficient mu theory are calculated, and dynamic load efficiency parameters are calibrated; s2, when the bridge is in a good state, the worst vehicle speed Vc, the maximum impact coefficient initial value mumax initial, the fundamental frequency initial value f initial, the first-order modal damping ratio initial value D initial and the quasi-static deformation reference value Ss are measured through a special loading vehicle; s3, collecting and processing daily patrol dynamic displacement data, and rapidly extracting and analyzing an actual measurement fundamental frequency f actual measurement, an actual measurement impact coefficient mu max actual measurement and an actual measurement damping ratio D actual measurement; and S4, comprehensively evaluating the dynamic performance of the bridge by analyzing the change conditions of the f actual measurement, the mumax actual measurement and the D actual measurement. According to the method, standardized rapid testing is achieved, single-time inspection only needs several minutes, traffic interruption is not needed, the rigidity, impact resistance and energy dissipation characteristics of the bridge structure are efficiently evaluated by means of the multiple objectively-quantified power parameters (the fundamental frequency, the impact coefficient and the damping ratio), and the scientificity and efficiency of daily inspection are remarkably improved.

The invention discloses a direct-current impedance testing method and device and a medium, and relates to the field of battery testing, and the method comprises the steps: testing impedance data of a target battery at different frequencies based on an electrochemical impedance spectroscopy testing method; based on the impedance data of the target battery under different frequencies, performing parameter fitting on the constructed equivalent circuit model to obtain impedance parameters of each component of the equivalent circuit model; determining a time domain differential equation set according to the impedance parameter of each component of the equivalent circuit model; according to the current values of the target battery at any two moments, through the time domain differential equation set, overpotential values caused by each component of the equivalent circuit model at the two moments are calculated; calculating a voltage value of the target battery at each moment according to an overpotential value caused by each component of the equivalent circuit model at each moment; calculating a DC impedance value of the target battery according to the voltage values and the current values of the target battery at the two moments; according to the invention, lossless and rapid testing of the DC impedance of the battery is realized.

According to the test probe assembly, the test system and the test method provided by the invention, in the test probe assembly, the active test probe is additionally provided with the power detector and / or the signal generator on the basis of the passive test probe, so that the transceiving performance test of the tested piece can be realized under the condition that a test instrument is not used, the test cost is reduced, and the test efficiency is improved. The total transmitting power or the total receiving power of the tested piece can be accurately obtained in one-time transmitting testing or one-time receiving testing, the testing efficiency is greatly improved, and the method is particularly suitable for rapid testing of a production line.

The invention relates to a confidential group psychological test system and a data processing method thereof, and belongs to the field of psychological test data processing. The system disclosed by the invention is particularly suitable for an environment with a high confidentiality requirement, and can ensure that individual privacy is fully protected in each step from data collection to report generation in the whole test process. The system supports quick test starting through a QR code, the operation process is greatly simplified, sensitive data is ensured to be processed and accessed only in an authorized local environment through localized data processing and decryption, and data leakage and unauthorized access are effectively prevented. The improvements not only improve the operation efficiency, but also strengthen the security of the system and the credibility of the user.

A nondestructive detection method for battery polarization distribution and a method for rapid battery classification belong to the field of battery detection technology. The present invention detects the changes in the polarization distribution inside the battery by detecting the two-dimensional distribution of the external magnetic field during the relaxation process of the lithium-ion battery, thereby realizing nondestructive detection of the polarization distribution inside the battery, and can effectively analyze the electrochemical characteristics of different sites inside the battery. This method realizes rapid screening and classification of different batteries through the differences in polarization distribution characteristics inside the battery, which helps to quickly classify the consistency of batteries and screen for abnormalities. Compared with conventional electrochemical detection methods, this method allows for rapid nondestructive testing of batteries, especially for factory testing, battery pack inconsistency detection, and rapid detection of large-scale long-term storage batteries.

The invention relates to the field of detection, in particular to a bridge arc-shaped steel formwork flatness detection device and method.The bridge arc-shaped steel formwork flatness detection device comprises a positioning frame used for supporting and positioning a steel formwork and further comprises a detection frame used for fixing a detection mechanism, the detection mechanism comprises a set of linear telescopic units, and one end of each linear telescopic unit is matched with the detection frame in a rotating mode; the rotation axis is parallel to the axis of the steel template; a laser detection module is fixed at the other end of the linear telescopic unit; the laser detection module comprises an installation frame which is arranged in the direction parallel to the axis of the steel formwork and used for fixing a laser flatness measuring instrument, the installation frame is matched with the linear telescopic unit in a rotating mode, the rotating axis is parallel to the axis of the steel formwork, and the linear telescopic unit and the installation frame are driven by independent power sources to rotate around the rotating axes of the linear telescopic unit and the installation frame respectively. According to the invention, rapid detection of the flatness of the die surface of the arc-shaped steel template can be realized, and the detection precision is high.

The utility model discloses a soft package battery flexible edge voltage rapid testing device, which comprises a clamping mechanism, a clamping mechanism and a testing mechanism, the clamping mechanism is used for fixing soft package batteries of different specifications and dimensions, a limiting mechanism is arranged on one side of the clamping mechanism, the limiting mechanism comprises two conductive cotton layers which can slide relatively, and the two conductive cotton layers are arranged on the clamping mechanism. The testing mechanism comprises two probes and a driving part, the two probes are arranged on the driving part in a relatively sliding mode, and when the soft package battery is fixed in the clamping mechanism and the top sealing edge of the soft package battery abuts against the two conductive cotton layers, the two probes are driven by the driving part to make contact with two tabs of the top sealing edge of the soft package battery respectively. The problems that in the prior art, side voltages of soft package batteries of different specifications and sizes are inconvenient to detect, and the detection efficiency is low are solved.

The utility model discloses a fast test device for a sum-difference device, relates to the field of radio frequency measurement, and solves the problems of low test speed and low efficiency caused by long time consumption for taking and installing screws when the existing VNA tests the sum-difference device. The key points of the technical scheme are as follows: the device comprises a first waveguide gasket arranged at a waveguide port of a waveguide coaxial adapter / waveguide load and a second waveguide gasket arranged at a waveguide port of a test fixture, and the first waveguide gasket and the second waveguide gasket attract each other; the surface of the first waveguide gasket is provided with a plurality of pins, and the surface of the second waveguide gasket is provided with a plurality of pin holes corresponding to the pins. And screw locking is replaced by magnetic attraction, so that the VNA sum-difference device testing efficiency is improved.

The invention belongs to the technical field of sheet metal welding spot detection, and particularly relates to a rapid test device for a sheet metal welding spot of a new energy automobile, the rapid test device comprises a mounting rack and a mechanical arm mechanism fixedly connected to the right side of the mounting rack, the inner wall of the lower side of the mounting rack is fixedly connected with a PLC, and the left side wall of the mounting rack is fixedly connected with a first electric push rod. When a new energy automobile metal plate welding spot is tested, the state that the welding spot is in the seaside for a long time and is eroded by salt in water vapor can be simulated, then the welding spot strength of a sheet metal part is tested, and therefore the comprehensiveness and diversity of test data are improved; and the number of unqualified welding spots can be automatically marked, so that an operator can conveniently record the data subsequently, and the accuracy of recording the data by the operator is improved.

The invention discloses a machine tool precision and rigidity retentivity rapid test method and device, and relates to the technical field of numerical control machine tool performance test.The test method comprises the steps that a static and dynamic force loading test is conducted on a tested machine tool; measuring degradation data of each precision and rigidity of the machine tool; converting the accelerated degradation data to a conventional working condition; and calculating each precision and rigidity retention degree of the machine tool. The testing device comprises a lower platform, an electric cylinder, an electric cylinder fixing tool, a hooke joint, an upper platform, a cutter handle clamp and a simulation cutter handle, and is used for synchronously loading static and dynamic forces in X, Y and Z directions of a tested machine tool. Based on simulation and acceleration of actual service conditions of the vertical machining center, the method and the device can realize on-machine, synchronous and rapid testing of precision and rigidity retentivity of the vertical machining center, and provide test technical support for improvement of performance retention capability of domestic machine tools.

The invention relates to the technical field of material performance detection, in particular to a rapid testing method for thermal aging failure of an oil and gas pipeline anticorrosive coating material, which comprises the following steps: testing oxidation induction time t of a sample; respectively carrying out thermal aging with different time lengths at 150 DEG C, measuring and calculating A (tri) / A (on) and a melt index change rate, establishing a linear equation of the A (tri) / A (on), and calculating A '(tri) / A' (on) corresponding to 35% of the melt index change rate; carrying out thermo-oxidative aging on the sample at different time lengths, measuring and calculating A (tri) / A (on), and obtaining aging time t'according to A '(tri) / A' (on); carrying out oxidation induction time test on the thermally aged material to obtain a rate coefficient k; and calculating the aging time corresponding to the material failure critical point. The test method provided by the invention can rapidly characterize the thermal aging failure critical point of the anticorrosive coating material, and provides a scientific basis for development of the material.

The invention relates to a nucleic acid detection platform based on an SHERLOCK technology, which is used for diagnosing CAV-2. The SHERLOCK consisting of recombinase polymerase nucleic acid pre-amplification (RPA) and CRISPR-Cas13a is mainly used for specifically recognizing a conserved sequence of CAV-2RNA (Ribonucleic Acid) through crRNA (Complementary Ribonucleic Acid) so as to activate the non-specific'side cutting activity 'of lwCas13a, so that the report RNA is degraded. A real-time fluorescent quantitative PCR (qPCR) system or a lateral flow test strip is used for collecting fluorescent signals generated by cracking of the reporter molecules, and a visual result is displayed. In addition, through HUDSON treatment, RPA-CRISPR can be amplified at room temperature without viral nucleic acid extraction. The detection limit of the method is 1.1 * 10 < 2 > copies / [mu] L, and the method has no cross reaction with other canine infectious viruses. From sample collection to result output, the whole reaction of RPA-CRISPR can be completed within two hours, and the RPA-CRISPR kit is suitable for rapid test of clinical samples and can work well in the field or in primary laboratories. The method can get rid of the limitation of a detection instrument and complex operation, and is suitable for on-site rapid batch detection. The method is preliminarily verified and further optimized and applied.

The invention provides a compressive strength testing device for an autoclaved aerated concrete block, and relates to the field of block strength testing, the compressive strength testing device comprises a testing assembly, the testing assembly is composed of a pressure applying mechanism and a transmission mechanism, when the testing assembly is used for testing the compressive strength of the block, the testing assembly has initial testing pressure, and when the testing assembly is used for testing the compressive strength of the block, the testing assembly is used for testing the compressive strength of the block; in other words, the pressure of the testing assembly does not start from zero during pressurization, so that the time consumed when a traditional press starts to conduct pressurization testing from zero is saved, testing is rapid, testing efficiency is high, the testing assembly has the protection function, and when the building blocks are broken, the testing assembly can be self-locked. The test assembly is prevented from being damaged due to elastic impact generated by losing the support of the building block, and the problems that the pressure exerted on the building block by the existing compressive strength test device of the aerated concrete building block always starts from zero, a certain time is needed to reach the required pressure value, the test efficiency is low, and the test cost is low especially when a large batch of building blocks are detected are solved. And the consumed time is long.

The utility model discloses an explosion-proof pressure detection device for a lithium battery cap, and relates to the technical field of lithium battery cap testing. The device comprises a top plate and a test plate located right below the top plate. A sealing plate is arranged between the top plate and the testing plate, a testing opening is formed in the middle of the upper end face of the testing plate, a screw opening communicated with the interior of the testing opening is formed in the lower end face of the testing plate, a placing ring is fixed to the inner side wall of the testing opening, a high-pressure pump is fixed to the upper end face of the sealing plate, and an outer screw plate is spirally arranged in the screw opening; a plurality of movable holes in an annular array are formed in the upper end face of the outer screw plate, movable rods are slidably arranged in the movable holes, linkage heads are fixed to the upper end faces of the movable rods, and a hydraulic cylinder is fixed to the upper end face of the top plate. According to the utility model, the high-pressure pump and the hydraulic cylinder are matched for use, rapid testing of the lithium battery cap is realized, and meanwhile, the linkage head is connected with the bottom surface of the lithium battery cap, so that the explosion-proof pressure testing condition can be observed at the first time.

The invention belongs to the field of coal seam coal rock mechanical property testing, and particularly relates to an accurate fidelity testing method for three-resistance strength parameters of coal rock before heat injection and permeability increase. Comprising the following steps: S1, sample preparation; s2, testing equipment configuration; s3, environment control; testing in the testing cover, setting the temperature and humidity in the testing cover to be consistent with the original sample environment, setting the temperature fluctuation range to be less than or equal to + / -1 DEG C, and maintaining parameter stability through an automatic adjusting system; s4, testing compressive strength; loading at a constant speed of 0.5 MPa / s, recording a failure load and calculating compressive strength c = Fc / A; s5, tensile strength testing; stretching at the speed of 1MPa / s, recording the fracture load and calculating the tensile strength r = 2Fr / piDt; s6, testing the shear strength; loading shear force at a constant speed, recording a failure load and calculating shear strength; S7, analyzing data; and after abnormal values are removed, generating a strength parameter curve, and comparing mechanical property data in different stress states. The accurate fidelity testing method for the three-resistance strength parameters of the coal rock before coal seam heat injection and permeability increase has the advantages of being easy and convenient to operate, rapid in testing, accurate in data and the like.

The invention discloses a device electroluminescence characteristic test system comprising an AC voltage signal source for providing an AC voltage signal; the conductive test bench comprises a base station and a contact probe, the base station is made of a conductive material and is used for placing a sample to be tested, the contact probe comprises a conductive material and is used for forming electric contact with the sample to be tested, and during testing, the sample to be tested is placed on the base station, and the contact probe is used for forming electric contact with the sample to be tested. AC voltage generated by the AC voltage signal source is applied to a to-be-tested sample through the contact probe, and the AC voltage is large enough to drive the to-be-tested sample to emit light; the series resistors are used for forming series connection with a sample to be tested; and a detection instrument. According to the method, the problems of etching damage and complicated operation caused by metal contact in a traditional EL detection method and the problem of inaccurate spectrum test in a PL detection method are solved, a simple and efficient novel EL characterization means without pretreatment is realized, and the method is suitable for rapid test and performance evaluation of various material systems and luminescent devices.

The invention discloses a blade dynamic strain measuring point determination method, device and equipment, a storage medium and a product, and the method comprises the steps: S1, calculating a blade modal through finite element software, calculating the dynamic strain sensitivity of different nodes of the blade in different directions according to the information of all finite element nodes under each order derived from a finite element calculation result; s2, screening and searching the maximum value of the dynamic strain sensitivity from the dynamic strain sensitivities of different nodes and different directions to obtain the blade dynamic strain optimal measurement point position and measurement direction of the strain gauge and the minimum sensitivity of the modal group; and S3, similarly calculating the group sensitivity, the optimal measurement point position and the group optimal measurement direction of all modal groups to obtain the blade dynamic strain optimal measurement point position and measurement direction of all strain gauges and the minimum sensitivity of the modal groups. The method avoids omission of the optimal measuring point, has the characteristics of economy, rapidness and high test sensitivity, and can determine more reasonable dynamic strain measuring points and measuring directions.

The invention relates to a method for rapidly testing the fracture toughness of a composite material based on a digital image. The method comprises the following steps: S1, preparing a sample; s2, loading the sample; s3, data acquisition; s4, data processing; and S5, calculating the fracture toughness. According to the method, the crack propagation behavior is dynamically analyzed by utilizing high-resolution strain data, and the basic mechanical property of the material does not need to be measured in advance, so that the test process is remarkably simplified; meanwhile, a fracture toughness calculation model constructed based on local strain response breaks through indirect correlation limitation of traditional macromechanical parameters, and can adapt to complex stress states of fracture tips at different fiber orientation angles. Besides, through a standardized strain field analysis framework, universal calculation of cross-sample types and sizes is realized, and a high-precision and high-efficiency solution can be provided for fracture evaluation of FRPC from laboratory standard samples to engineering special-shaped structures.

The invention discloses a pipettor tightness rapid inspection device, which comprises a test host, and the test host is in sealed communication with a vacuumizing mechanism and a test mechanism through pipelines. The testing mechanism comprises a gas-water separator, a pipettor clamp and a testing container, a detachable horizontal sealing upper cover is arranged at the top of the testing container, a testing through hole and a plurality of pipettor gun head insertion holes are formed in the upper cover, a pipettor gun head sealing assembly is arranged in each pipettor gun head insertion hole, and the pipettor gun head sealing assemblies are located below the upper cover; and the through hole for testing, the gas-water separator and the host for testing are sequentially and hermetically communicated through pipelines. When a single detector is used, detection can be completed within 15 seconds, if a plurality of test containers are matched, at most 6 12-channel pipettors can be detected at the same time, the instrument can set the detection time by itself, one-key detection is achieved, time control and pressure control are very accurate, the labor intensity of the detector is greatly reduced, the detection process is more efficient, and the detection quality is more stable.

The invention provides a new energy automobile battery rapid detection method and device, and the method comprises the steps: extracting the discrete characteristics of the battery capacity in a to-be-detected battery pack from electrical parameter data, determining the charge state difference of each single battery in a charging process, and extracting the temperature rise characteristics of each single battery from temperature data; determining a monomer aging index of the corresponding battery monomer according to the charge state difference and the temperature rise characteristic of each battery monomer, and further determining the overall aging characteristic of the battery pack to be tested; determining the relative aging gradient of each battery monomer based on the charging and discharging duration of the battery pack to be detected and all monomer aging indexes; and determining a health state detection value of the to-be-detected battery pack through all the relative aging gradients and the overall aging characteristics, and calibrating the health state of the to-be-detected battery pack based on the health state detection value. By adopting the scheme of the invention, the battery pack can be rapidly detected based on the aging of the monomers in the battery pack and the consistency in the battery pack.

The invention discloses a multi-node power grid wireless temperature measuring device and a temperature measuring method, and relates to the technical field of power grid wireless temperature measurement. The multi-node power grid wireless temperature measuring device comprises two racks, driving mechanisms used for driving the device to move are installed on the two racks, and side frames are fixedly installed on the sides, away from the racks, of the driving mechanisms; one side of the side frame is fixedly provided with a monitoring mechanism used for preliminarily measuring the temperature of the line, the two ends of the rack are both provided with clamping mechanisms used for conducting environment isolation temperature measurement on the line, and one side of the monitoring mechanism is provided with a processing mechanism used for processing the surface of the line. Through the arrangement of the monitoring mechanism, the cable temperature state can be timely and roughly fed back, a temperature abnormal area can be rapidly positioned, the long-distance cable temperature measurement process is effectively shortened, rapid testing is achieved, the temperature measurement process is accelerated in the process, the cable maintenance efficiency and accuracy are improved through real-time monitoring, and the service life of the cable is prolonged. And the operation safety and stability of the cable are further ensured.

The present invention relates to a method and device for rapidly and comprehensively evaluating the performance of tunnel muck used for manufactured sand, comprising the following steps: 1) Specimen preparation: Using a vibration device (1), a temperature control device (3), and a weighing device (10) to rapidly obtain dried and saturated surface-dry specimens. 2) Apparent density and water absorption test: Measuring the mass of water discharged by a known mass of saturated surface-dry specimens and heating to obtain the mass of the dried specimens. 3) Crushing index and softening coefficient test: Pressurizing, automatically screening, and weighing the dried and saturated surface-dry specimens respectively. 4) Soundness test: Realizing the rapid test of soundness based on temperature control, automatic screening, and weighing. 5) Automatic data acquisition and processing: Automatically acquiring and processing the above data. The evaluation method and device proposed by the present invention can simultaneously and rapidly test the physical and mechanical properties and durability of muck, solve the problems such as long test cycle and single test result of muck performance, and are applicable to the rapid evaluation of manufactured sand parent rocks such as muck, pebbles / gravels.

The utility model discloses an LED lamp bead welding device, comprising: a workbench, which is a cavity with a slide groove on the top; a No. 3 linear module, which is provided with a plurality of No. 3 linear modules and is placed inside the workbench, a mobile box is fixedly connected to the top of the movable slide of the No. 3 linear module, and a No. 1 servo motor is fixedly connected to the inside of the mobile box; a mounting seat, which is placed at the output end of the No. 1 servo motor, and a workpiece fixture is detachably mounted on the top of the mounting seat. The beneficial effects of the utility model are: by setting a right-angle L-shaped structure, the workpiece fixture allows for quick and easy replacement, and when the fixture is replaced, the equipment downtime is reduced and the production efficiency is improved, and the rapid positioning ensures that the welding accuracy can be maintained even after the fixture is replaced, so that it is convenient to perform rapid testing and processing.

The invention discloses a thermal management system test method of a hydrogen fuel cell unmanned aerial vehicle, which belongs to the field of energy management and comprises the following steps: a, starting a pipeline heater of a thermal management system, and setting the power of the pipeline heater to be Q1; b, opening an electromagnetic valve, and adjusting a proportional valve to open a branch A and close a branch B; c, starting a fan, and adjusting to an incoming flow wind speed required by the test; d, starting an incoming flow heater, and adjusting the power Q2 of the incoming flow heater to the incoming flow temperature required by the test; e, starting a circulating pump, and recording the circulating flow of the cooling liquid; f, judging whether the cooling liquid inlet temperature is equal to the target temperature or not; g, comparing the cooling liquid inlet and outlet temperature difference with the target temperature difference; and h, the heating power is reduced or improved, and the working conditions of the thermal management system meeting the heat dissipation requirement under different thermal load conditions are obtained. According to the invention, rapid detection of the heat dissipation performance of the heat management system in different working environments can be realized, and the working environment of the heat management system meeting the heat dissipation requirement of the hydrogen fuel cell is obtained.

The utility model belongs to the technical field of chip testing, and particularly relates to a rapid testing device for a packaged semiconductor chip, which comprises a testing table, a clamping mechanism and a driving mechanism, a placing table is fixedly arranged at the top of the testing table, and a plurality of placing grooves for placing chips are arranged at the top of the placing table in an array manner. According to the utility model, chips to be tested are placed in the inner cavity of the placing groove one by one, the chips can be clamped in the middle between the front and rear clamping plates along arc transition, the springs push the clamping plates to clamp the front and rear sides of the chips, the spline rod moves along the front and rear directions of the spline groove, and the height of the detection plate is adjusted to detect one side of each chip. After detection is finished, the detection plate is reset, the servo gear motor is started to drive the driving rod to rotate, all the rear rotating rods are driven to rotate through the worm and the worm gear, all the chips are driven to rotate in sequence, accordingly, the chips are turned over, and finally the other faces of the chips are detected by adjusting the height of the detection plate.