48results about How to "Valid test" patented technology

The invention discloses a heterogeneous computing architecture testing method of an ISP module, and belongs to the technical field of heterogeneous computing. According to the technical scheme, a high-level synthesis tool is used for generating and verifying an IP to be tested; a target algorithm IP application system is constructed by using a microprocessor IP hardcore and an AXI bus connector of a heterogeneous computing platform, a target algorithm IP core is operated by using software to carry out an application test, and actually measured data is stored in a nonvolatile storage medium; transplanting an operation system and an OpenCV library to the heterogeneous computing platform for the development board, and storing a target algorithm software operation result to a data file after a test program is operated; and evaluating the function correctness and the performance index of the target algorithm IP by using the actually measured data and the software operation result. The method has the advantages that effective testing and optimization of the heterogeneous computing architecture of the ISP module are achieved through the software and hardware co-simulation and IP core verification technology, middle-level optimization, a comprehensive testing framework and other methods, and powerful support is provided for technology development, application and popularization in related fields.

The utility model provides an FCT testing device, and belongs to the technical field of PCB detection. The FCT test equipment can be used for detecting a PCB (Printed Circuit Board); the mounting plate is fixedly connected into the FCT test equipment through bolts and can be used for mounting the turnover mechanism; the two supporting rods are fixedly connected to the upper end of the mounting plate and can be used for mounting a first micro motor; the turnover mechanism comprises a first micro motor which is fixedly connected to the side end of one of the supporting rods and can drive the PCB to turn over; the PCB is placed in the placing groove and is matched with the two positioning blocks at the same time, then a second micro motor is operated to drive a second cam to rotate, and four first cams are driven by linkage force of the second cam to drive a pressing fence to press the PCB, so that the PCB can be installed in the FCT test equipment, manual operation is not needed, the PCB can be directly turned over, and the efficiency is improved. Therefore, the two surfaces of the PCB can be effectively tested.

The utility model discloses a battery sealing ring resistance testing device which comprises an insulating base, the upper side of the insulating base is fixedly connected with a first iron disc, the upper side of the insulating base is connected with an insulating supporting plate through a lifting device, and a sliding column vertically penetrates through the side wall of the insulating supporting plate. A meshing lifting device is arranged on the side wall of the sliding column, a top plate is fixedly connected to the upper end of the sliding column, a ballasting weight is arranged on the top plate, a second iron disc is fixedly connected to the bottom end of the sliding column, and electrode columns are fixedly connected to the side wall of the first iron disc and the side wall of the second iron disc. According to the utility model, the battery sealing ring can be rapidly and conveniently clamped between the first iron disc and the second iron disc, the plane resistance can be effectively tested, the requirement of rapid production inspection can be met, and meanwhile, the device changes the pressure on the battery sealing ring through the weight of the ballasting weight, so that the clamping force of the battery sealing ring is more accurate and stable, and the production efficiency is improved. And the accuracy of the test data is improved.

The invention relates to the field of circuit boards, and discloses a circuit board production line testing device which comprises a detection box provided with a box door, a first fixing plate is arranged in the detection box, two first sliding columns are connected to the first fixing plate, and a first sliding plate and a second sliding plate are connected to the first sliding columns. The first sliding plate and the second sliding plate are connected through a vibration mechanism, a third sliding column is connected to the bottom of the second sliding plate, a second fixing plate is slidably connected to the third sliding column, a balancing weight is connected to the third sliding column, and the second sliding plate can continuously vibrate in the up-down moving process through power generated when an air pump conveys air; the flexible circuit board is driven to vibrate, so that whether a pseudo soldering welding spot exists on the flexible circuit board or not can be effectively tested, and in the process that the second sliding plate continuously moves up and down, the two hollow extension plates are far away from each other or close to each other, so that the vibration amplitude and the vibration frequency of the flexible circuit board can be effectively changed.

The invention relates to a spraying dust-settling effect testing system, and the system comprises a testing platform main body which is internally integrated with a liquid storage tank and an automatic spraying parameter collector, and is used for automatically monitoring the water pressure and flow in a spraying process; the moving mechanism comprises moving wheels and is convenient for the test platform to move; the sampling mechanism is composed of a sampling box, a communication assembly and a sampling head and is used for collecting dust in the air; the air extracting pump and the constant-flow adjusting controller are respectively used for extracting an air sample and adjusting the air flow speed to be constant; the exhaust mechanism is used for exhausting sampled air through an exhaust pipe; the atomizing and spraying mechanism comprises an atomizing nozzle and a water supply pipe and is used for atomizing liquid and spraying the liquid to the space to be detected for dust falling. The system may also comprise additional structures such as a direction-adjustable sampling mechanism, a plurality of atomizing nozzles, a fixing clamp, a liquid inlet valve for controlling external liquid to enter the liquid storage tank and the like.

The invention discloses a test method for a high-load heating tube for a mold, and belongs to the technical field of single-head electric heating tube detection. The method specifically comprises the following steps: S1, historical data acquisition: acquiring cold-state electrical performance data of single-head electric heating tubes with different specifications and under different working conditions; s2, historical data preprocessing: performing preprocessing including data cleaning, data normalization and data standardization on historical data to obtain a standardized data set; the test process design covers a full-period closed loop of cold state detection, hot state leakage current test, reliability test, secondary hot state leakage current test and secondary cold state detection, the electrical safety (leakage current control) under a high-load working condition is verified through the hot state test, and the reliability of an actual use scene is simulated through a rapid on-off test. Meanwhile, the appearance, temperature, gas release and other states of the heating pipe are monitored in real time, abnormal testing is terminated in time, safety risks are avoided, and it is ensured that the detection result can comprehensively reflect the actual use performance of the heating pipe.

This invention pertains to inertial navigation technology and relates to a Q-value testing system and method for high-vacuum resonators. The testing system includes: a sinusoidal excitation signal on / off switch, an AC excitation signal source, a DC high-voltage excitation on / off switch, a high-voltage voltage source, a mode selection switch, a resonator vibrating mass block, comb teeth on the left and right fixed ends of the resonator, a charge amplifier, a dedicated data processing unit, and a dedicated shielding shell. The testing method includes the following steps: Step 1, installation of the high-vacuum resonator; Step 2, mode setting; Step 3, after completing the resonator drive, disconnecting either the sinusoidal excitation signal on / off switch or the DC high-voltage excitation on / off switch, allowing the resonator to enter a natural decay state; Step 4, calculation. This invention has the advantages of being economical, practical, simple, and reliable, and can effectively and accurately measure the Q-value of high-vacuum resonators.

The invention discloses a parameter calibration method of a quantum bit reading system based on resonant cavity time domain response, and relates to the technical field of quantum computing, and the method comprises the following steps: state preparation; a current reading frequency point is selected, one of two routes is selected for processing, and the other route is as follows: quantum bits are prepared respectively to obtain reading cavity parameter information, the reading cavity parameter information is substituted into the kinetic model, and a transmission signal is obtained and stored; according to the other route, operation is not carried out on the quantum bits, reading pulses are applied, and transmission signals are obtained and stored; taking the next reading frequency point as the current reading frequency point to circularly enter the processing process until the total number of the reading frequency points is reached, obtaining a plurality of groups of transmission signals after the cavity signals are removed, and obtaining to-be-fitted parameters in the dynamic model based on the transmission signals; according to the parameter calibration method, various parameters of the reading cavity under the specific reading frequency can be effectively tested.

The invention belongs to the technical field of nerve sensor testing, and particularly discloses a nerve sensor testing device and method. The device comprises a standard neural signal simulation module, a to-be-tested neural sensor, a signal preprocessing unit and a computer control end which are connected in sequence, the computer control end is connected with the standard neural signal simulation module; the standard neural signal simulation module is used for outputting a standard neural signal according to a preset output mode and applying the standard neural signal to a microelectrode area of the to-be-tested neural sensor, so that the to-be-tested neural sensor outputs multiple paths of neural electric signals; the signal pre-processing unit is used for performing signal pre-processing on each path of electroneurographic signal and outputting a to-be-detected electroneurographic signal corresponding to each path of electroneurographic signal; and the computer control end is used for performing target discharge parameter comparison test on each path of to-be-tested neuroelectric signal and the standard neural signal. According to the invention, effective testing of the MEMS nerve sensor can be realized.

The utility model discloses a device for testing the rainstorm resistance of doors and windows, and relates to the technical field of door and window performance testing. The device comprises a test room, one side of the bottom of the test room is fixedly connected with a guide rail, the top of the guide rail is provided with a sliding mechanism, the sliding mechanism comprises a vehicle frame, the bottom of the vehicle frame is rotatably connected with an axle, the axle is fixedly connected with wheels, the interior of the vehicle frame is fixedly connected with a rotating motor, and the rotating motor is fixedly connected with the vehicle frame. According to the utility model, the test room, the guide rail and the sliding mechanism are arranged, and the sliding mechanism is utilized to drive the wind tunnel to rapidly slide and adjust the angle, so that the performance of doors and windows under different wind pressures and water pressures can be simulated and tested; the device comprehensively evaluates the rainstorm resistance, accurately controls the wind tunnel movement and wind speed, provides a high-precision test result, and effectively tests the performances of doors and windows facing different wind directions.

The utility model discloses a power consumption tester applied to a circuit board. The power consumption tester comprises a housing assembly; the circuit board and the analog power supply assembly are respectively and fixedly arranged in the shell assembly; the charging connection terminal, the analog power supply connection terminal, the input connection terminal and the display screen are fixedly arranged on the front face of the shell assembly in a penetrating mode, and the charging connection terminal is electrically connected with a charging connection end on a tested Bluetooth circuit board. The simulation power supply assembly is electrically connected with a battery connecting end on the tested Bluetooth circuit board through the simulation power supply connecting terminal, and the input connecting terminal is electrically connected with an external battery and the tested Bluetooth circuit board respectively. According to the utility model, through mutual cooperation among the circuit board, the simulation power supply assembly, the charging connection terminal, the simulation power supply connection terminal, the input connection terminal and the display screen, the problem that the power consumption test of the existing circuit board is inconvenient is effectively solved.

The invention discloses a variable-pressure humidity regulating device and method for testing and calibrating an MEMS humidity-sensitive device. The device comprises a gas source, a first back pressure type pressure regulating valve, a saturator, a constant-temperature system, a water path, a second back pressure type pressure regulating valve and a mass flow controller. Gas from a gas source enters the saturator through the first back pressure type pressure regulating valve and then enters the MEMS humidity-sensitive device measuring cavity through the second back pressure type pressure regulating valve, a gas outlet of the MEMS humidity-sensitive device measuring cavity is connected with the mass flow controller, and the mass flow controller controls the gas flow in the MEMS humidity-sensitive device measuring cavity. The first back pressure type pressure regulating valve controls the pressure in the saturator, the second back pressure type pressure regulating valve controls the pressure in the measuring cavity of the MEMS humidity-sensitive device, the constant temperature system and the water path adjust the temperature of the saturator, and moisture generated by the saturator enters the measuring cavity of the MEMS humidity-sensitive device to be measured and calibrated. According to the invention, rapid response of specific humidity parameters with wide range, high accuracy and high stability can be realized, and effective measurement and calibration of the MEMS humidity-sensitive device can be realized.

The present invention relates to a method for inspecting a shuttle valve (2) in a pneumatic system (100), wherein the shuttle valve (2) has a first shuttle valve interface (2.1), a second shuttle valve interface (2.2), and a third shuttle valve interface (2.3), wherein the higher of the pressures (p1, p2) applied at the first shuttle valve interface (2.1) and the second shuttle valve interface (2.2) is always regulated to the third shuttle valve interface (2.3), wherein the method comprises the following steps: a) regulating a first pressure (p1) to the first shuttle valve interface (2.1); b) obtaining an indication value (G1, G1T) at the first shuttle valve interface (2.1) for the first pressure (p1); and c) comparing the indication value (G1, G1T) for the first pressure (p1) with a predetermined first comparison value (GV1, GS1) set for this purpose, and if the deviation is greater than a first tolerance (T1): obtaining and / or outputting a fault (E) in the shuttle valve (2).

The utility model relates to a galvanized sheet body deformation test tool, which belongs to the field of test tools, and comprises a clamping mechanism arranged on the upper surface of a tool base, and the clamping mechanism comprises a support frame. According to the deformation testing tool for the galvanized sheet body, the clamping mechanism is arranged, and the galvanized sheet body can be stably clamped through the pressing roller and the locking assembly in the clamping mechanism, so that displacement in the deformation testing process is prevented, and compared with a roller clamping position used in the prior art, the testing accuracy is remarkably improved; through structures such as a locking bolt and a friction plate in the locking assembly, the rotating shaft is effectively locked, displacement of the plate body in a test is prevented, and the locking assembly can ensure the stability of the plate body in the test process, so that more reliable deformation test data can be obtained, which is crucial for evaluating the quality of the galvanized plate; the tool can adapt to galvanized plate bodies of different sizes, and the universality and flexibility of the tool are improved.

The invention discloses a dynamic test method, device and equipment for an autonomous vehicle, a medium and a product. The method comprises the following steps: acquiring a target test scene from a scene library; if a first takeover instruction is received, determining a target agent matched with the first dynamic target from the agents, and takeover the driving behavior of the first dynamic target in the target test scene based on the target agent; and according to the target test scene and the taken-over first dynamic target, dynamically testing the intelligent driving model of the autonomous vehicle to obtain a test result. According to the scheme, the systematic bottleneck that authenticity, interactivity and efficiency of the test are difficult to achieve at the same time is solved, the intelligent agent is trained in advance, the intelligent agent serves as the moving target to interact with the automatic driving vehicle in the target test scene, the interactive decision-making ability of the automatic driving vehicle can be effectively tested, and the test efficiency is improved. And the authenticity of the automatic driving vehicle test is improved.

The invention relates to the technical field of aging test equipment, and discloses filter high-temperature aging test equipment which comprises a test frame, a plurality of test boxes and a blowing-type heat supply mechanism, the test boxes and the blowing-type heat supply mechanism are installed on the test frame, and heating cavities are formed in the box walls of the test boxes. An air inlet and an air outlet which are communicated with the heating cavity are formed in the back surface of the test box; according to the invention, by arranging a plurality of independent test boxes, samples to be tested can be effectively isolated, chain reaction and simultaneous damage of a plurality of samples are avoided, the safety of the test process is improved, by arranging a partition plate and a concave plate, the lifting of the partition plate and the concave plate can be controlled according to the size of a filter, and the test efficiency is improved. Therefore, the volume of the detection cavity and the heating cavity is adjusted, heat can be concentrated in the detection cavity, energy waste caused by heating the whole large space and maintaining the constant temperature is avoided, and efficient utilization of energy is achieved.

The present invention discloses an optical anti-shake detection method and device, wherein the method includes: obtaining a preset anti-shake angle and a gyro gain coefficient; determining multiple calibrated stroke coordinates of the motor when the camera module compensates for the anti-shake angle according to the anti-shake angle and the gyro gain coefficient; wherein the multiple calibrated stroke coordinates are circumferentially distributed around the initial coordinates of the motor stroke; driving the motor to move according to each calibrated stroke coordinate, and detecting the current stroke of the motor after the action is completed to obtain the measured stroke coordinates; the measured stroke coordinates correspond to the calibrated stroke coordinates one by one; and determining the test results of the motor and the position detection unit according to the calibrated stroke coordinates and the measured stroke coordinates. The method of the present invention can more comprehensively test the accuracy of the motor and the position detection unit in different shaking directions during the IOS anti-shake control process.

The invention discloses a copper-clad plate insulation and voltage resistance testing device and a testing method.The testing device comprises a base, a pressure applying mechanism, a side electricity mechanism and a measuring meter, a plurality of supporting columns used for supporting a copper-clad plate are arranged on the base, a horizontal sliding rail is arranged above the base, and a left sliding plate and a right sliding plate are sequentially installed on the horizontal sliding rail; the pressure applying mechanism comprises a plurality of air hammers, the side electricity mechanism comprises a lifting plate, a positive plate and a negative plate, the positive plate is mounted on the lifting plate, the negative plate is fixedly mounted on the base, a plurality of positive probes are arranged on the positive plate, a plurality of negative probes are arranged on the negative plate, and the lifting driving mechanism drives the lifting plate to move up and down. According to the device and the method for testing the insulation and voltage resistance of the copper-clad plate, disclosed by the invention, the insulation and voltage resistance of the copper-clad plate can be tested in different modes of simulating a complex use environment of a printed circuit board, providing physical pressure application, improving test voltage and the like, and the product quality of the copper-clad plate can be effectively tested.

This application relates to the field of security testing technology, specifically to a method and apparatus for generating fuzzy test data for vehicle-to-everything (V2X) security. The method includes: acquiring CAN bus data; calculating a parameter activity coefficient based on CAN bus frame data with the same ID in the real vehicle data, used to measure the activity and boundary conditions of various control commands in the real vehicle data; then combining the correlation between different IDs to perform temporal correlation feature measurement, and further calculating a random weight coefficient to measure the intensity of random transformation of each CAN bus frame data in the real vehicle data; and correcting the standard deviation of Gaussian noise based on the activity of different types of data and the dependencies between data, thereby generating test data for V2X security fuzzy testing. This application aims to generate test data that conforms to the statistical laws of vehicle communication, thereby improving the data pass rate in the underlying protocol stack and thus more effectively testing the upper-layer business logic.

The present invention belongs to the field of laser Doppler technology, and specifically relates to a laser communication test system based on code Doppler and a code Doppler generation method thereof, including: S1, parameter initialization; the initialized parameters include the original sampling period, the original symbol rate, the rate offset, the new symbol rate, the number of symbol sampling points, and the code Doppler step amount; S2, using random binary data to generate a binary phase shift keying BPSK signal; S3, shaping filtering the BPSK signal through a square root raised cosine filter; S4, calculating the sampling time index through a time scaling ratio, and judging whether the sampling time index is within a target index range; if so, going to step S5; S5, interpolating and resampling the BPSK signal after shaping filtering based on the sampling time index and the Doppler phase offset. When performing Doppler frequency shift compensation, the present invention realizes the adjustment of the symbol rate through the calculation of the time scaling ratio, and combines interpolation to ensure the accuracy of the signal after resampling.

The invention discloses a construction method and application of an atherosclerosis blood vessel model, and the construction method comprises the following steps: (1) manufacturing a PDMS chip with a sample introduction channel, and then carrying out surface modification on the sample introduction channel to enable the sample introduction channel to be used for GelMA attachment; (2) mixing GelMA and SMCs, pouring the mixture into the surface-modified sample introduction channel, curing and crosslinking the mixture on the inner wall of the sample introduction channel to form a simulated artery blood vessel wall middle membrane layer, and annularly culturing GFP-HUVECs in the simulated artery blood vessel wall, so as to obtain an endodermis in tubular arrangement, and further obtain a simulated artery blood vessel endodermis; and (3) introducing a culture medium containing ox-LDL, TNF-alpha and IL-1beta into the simulated artery blood vessel obtained in the step (2), and culturing to obtain the atherosclerosis blood vessel model with the physiological artery structure. The atherosclerosis blood vessel model constructed by the method is very close to an in-vivo microenvironment, and atherosclerosis candidate drugs can be effectively screened and tested in vitro.

The invention discloses a method for testing the temperature stability of a sodium-nickel battery module, and belongs to the technical field of sodium-nickel battery tests.The method comprises the steps that formation activation is conducted on the sodium-nickel battery module at a certain temperature, and the initial battery capacity of the sodium-nickel battery module is recorded; then the sodium-nickel battery module is subjected to multiple freezing and thawing treatment, the final battery capacity is recorded, the freezing and thawing treatment is used for simulating the influence of an extreme environment on the battery, and finally the temperature stability of the sodium-nickel battery module to be detected is judged by calculating the battery capacity retention ratio of the sodium-nickel battery module before and after freezing and thawing. The working performance of the sodium-nickel battery module is judged; namely, according to the method, the temperature stability of the sodium-nickel battery module is evaluated by testing the change of the battery capacity before and after the sodium-nickel battery module is frozen and thawed for multiple times, the testing period is shorter than that of a traditional method, the temperature stability of the sodium-nickel battery module is rapidly and effectively tested, the testing efficiency is improved, and meanwhile, the quality of the sodium-nickel battery is guaranteed.

The embodiment of the present invention discloses a test script construction method, device, computer equipment and storage medium, the method comprising: obtaining test data in a preset standard format, the test data corresponding to at least one request; parsing the test data in the preset standard format to obtain a parsing result; determining the test data belonging to the same request in the parsing result according to a preset merging rule, and completing the merging of the test data of the same request to update the test data of each request; adding the updated test data of all requests to a preset test script framework to generate a test script. The method solves the problem that the prior art cannot realize efficient testing of the test data generated by the WCF communication method.

The invention belongs to the technical field of automatic equipment, and discloses an automatic alignment assembly jig and an automatic alignment assembly method.The jig comprises a rotary pressing module, a flat cable shifting module and a limiting module. The rotary downward pressing module comprises a downward pressing assembly and a rotating assembly rotationally connected to the downward pressing assembly, the first structure can rotate along with the rotating assembly to face a second structure borne on the carrier, the downward pressing assembly can move in the first direction and drive the rotating assembly and the first structure to move, and when the downward pressing assembly is located at a preset position; the flat cable shifting module comprises a shifting part and a cam rod which can move in the second direction at the same time, the shifting part is used for shifting a flat cable located between the first structure and the second structure, and when the downward pressing assembly moves to enable the second structure to move towards the first structure, the downward pressing assembly abuts against the cam rod to enable the cam rod and the shifting part to move away from the flat cable; the shifting piece is moved out of the space between the second structure and the first structure; the limiting module is used for limiting, preventing the flat cable from bouncing off, and guaranteeing the installation stability of the assembly.

The application discloses a kind of test case set generation method, architecture and equipment of embedded system, method includes: obtaining the source code and hardware description file of embedded system, source code exists multiple program points for indicating code position when executing in embedded system;According to source code, abstract syntax tree and control flow graph are constructed, abstract syntax tree is used to indicate the static structure information of multiple program points, control flow graph is used to indicate the dynamic execution path of multiple program points;According to abstract syntax tree, control flow graph and hardware description file, construct risk image;According to risk image, the computing resource corresponding to multiple program points respectively is dynamically distributed, and multiple program points respectively corresponding test case set is generated based on computing resource.The present application can realize high coverage under the premise of guaranteeing the effectiveness of real hardware test.

A concrete test piece testing device for axial load and freeze-thaw cycle coupling comprises a constant-temperature and constant-humidity box machine internally provided with a concrete load holding device, the concrete load holding device comprises a third base plate, the top of the third base plate is fixedly connected with a spiral column, the spiral column penetrates through a first base plate and is fastened at the top of the first base plate through a nut, and the top of the first base plate is fixedly connected with a second base plate. A concrete test piece to be tested is placed between the third base plate and the first base plate, a second base plate parallel to the third base plate and the first base plate is arranged above the concrete test piece, and a pressure sensor is arranged between the second base plate and the first base plate; a temperature sensor is arranged in the concrete test piece; a telescopic rod is installed on the spiral column in the horizontal direction, and the other end of the telescopic rod is connected with an acoustic emission probe used for being attached to a concrete test piece. The problems that the size of an existing applied load is limited by a spring device, and the pressure change, the change of the internal temperature of a test piece and the real-time damage change cannot be monitored in the test process are solved.

The present invention relates to the field of automated testing technology, and in particular to a water-based testing device applied to a wiper valve body. It includes a valve body rotating mechanism, a valve body transporting mechanism, an NG storage conveyor belt, a carrier positioning block, a test box module, a valve body rotating shaft, and a CCD visual mechanism; the carrier positioning block is arranged at the side end of the NG storage conveyor belt, the valve body transporting mechanism is arranged above the NG storage conveyor belt, the CDD visual mechanism is arranged on the right side of the valve body transporting mechanism, the valve body rotating mechanism is arranged in front of the valve body transporting mechanism and arranged above the NG storage conveyor belt, the valve body rotating shaft is arranged next to the valve body transporting mechanism, and the test box module is arranged under the valve body rotating mechanism. The benefits of the present invention include high detection accuracy, effective testing of valve bodies, high degree of automation, and greatly improved detection efficiency and quality of valve bodies.

The invention discloses a pressure testing device for a negative pressure drainage tube, and relates to the technical field of pressure testing. The pressure testing device for the negative pressure drainage tube comprises a base, the top of the base is fixedly connected with a control device, the right side of the base is fixedly connected with a bearing seat, the left side of the base is fixedly connected with a mounting seat, the inner wall of the bearing seat is rotatably connected with a main shaft, and the outer wall of the main shaft is fixedly connected with an extrusion mechanism. According to the pressure testing device for the negative pressure drainage tube, the arc-shaped inner wall of the arc-shaped block is matched with the arc-shaped outer wall of the elliptical block, so that an air bag of the negative pressure drainage tube is fully extruded, the air bag of the negative pressure drainage tube is bulged to suck a barometer, and the pressure degree displayed by suction is displayed on the barometer; therefore, the suction force generated by the negative pressure drainage tube can be effectively measured, and the barometer is electrically connected with the control device.

This invention discloses a method, apparatus, and medium for power-on / off testing of a solid-state drive (SSD), applicable to the field of storage technology. The method first acquires the original first data of the SSD under test, then executes a write command to write the corresponding second data to the corresponding test area of ​​the SSD. During the execution of the write command, the SSD under test is powered on and off. After power-on, based on the execution status of the write command, the first data and / or the corresponding second data are used to verify the SSD's status to determine its condition. If the verification result does not meet the verification logic, the SSD is determined to be in an abnormal state. Using the first and second data for verification, and determining the hard drive status based on whether the verification result corresponds to the execution status of the write command, improves the accuracy of the test. In the event of an abnormal power failure, the location of the power failure can be identified based on the verification error location, improving the comprehensiveness of the test.

The invention discloses a device and method for testing an effective heating area of a tubular resistance furnace, and the device comprises a temperature measurement mechanism disposed in a tubular furnace and a positioning adjustment mechanism used for installing the temperature measurement mechanism, and one end of the tubular furnace is provided with a temperature control instrument extending into the tubular furnace. The positioning adjusting mechanism comprises a positioning block arranged at the other end of the tubular furnace and a rotating block embedded in the positioning block, a first temperature measuring tube is arranged on the positioning block, a second temperature measuring tube is arranged on the rotating block, and the temperature measuring mechanism comprises multi-section temperature sensors arranged in the first temperature measuring tube and the second temperature measuring tube in a penetrating manner; the method comprises the following steps: 1, installing a temperature measuring mechanism; 2, testing an effective heating area; and 3, determining a uniform temperature area of the tubular furnace. According to the invention, the multi-section temperature sensor is adopted for regional testing, so that the real-time temperature values of different positions in the tubular furnace can be conveniently tested at the same time, the uniformity of the temperature in the tubular furnace and the uniform temperature region can be conveniently determined by technicians, and the testing effect is good.