45results about How to "The test data is accurate" patented technology

The invention discloses an application system performance testing method based on database synchronization delay. Accurate monitoring and performance analysis of database master-slave synchronization delay in a high-concurrency environment are achieved through dynamic delay estimation and multi-scene testing. Comprising the following steps: deploying a database master-slave synchronization environment on a business system and configuring application software to be tested; installing a performance test tool, dynamically adjusting test parameters, and constructing a synchronous data model of the master and slave databases of the database; monitoring database synchronization delay amount and performance parameters before and after application software deployment in real time through a monitoring system; and compiling a test script, simulating test scenes under normal and abnormal conditions, carrying out dynamic estimation on delay data based on a KPLSF fusion model, analyzing the variation trend of delay amount and performance parameters, and generating a test report. According to the method, high-precision delay monitoring and performance evaluation are provided, and reliable data support and technical guarantee are provided for system tuning, backup strategy optimization and performance improvement of application software.

The invention relates to the field of tension test equipment, in particular to a tension test device with a constant-temperature working environment. The invention provides the tension test device with the constant-temperature operation environment, which can reduce the opening time of the sealing door in the constant-temperature operation environment and ensure the temperature stability of the constant-temperature operation environment to the greatest extent. A tension test device with a constant-temperature working environment comprises a base, a loading system, a cross beam and the like, the upper side of the right part of the base is connected with the loading system, and the upper part of the loading system is slidably connected with the cross beam. The rotating wheel is controlled by the motor to rotate, the rotating wheel rotates to convey the clamp and a test sample into the isolation furnace for experiment, and the electric push rod is matched to control the butt joint frame to push the clamp, so that the clamp can be in butt joint with the locking device, and the opening time of the sealing door can be shortened in a constant-temperature operation environment; the influence on a constant-temperature test environment during loading, unloading or replacement of the test sample is reduced to the greatest extent, and the accuracy of test data is ensured.

The invention belongs to the technical field of oil seal leakproofness test, and particularly relates to a high-low pressure gas spring oil seal leakproofness test box for an automobile suspension system, the high-low pressure gas spring oil seal leakproofness test box comprises a seal test device and a pressure balance system, the seal test device comprises a box body, a partition plate, an upper cover plate, a lower sleeve and a reinforcing mechanism; a box plate is in shaft connection with the upper portion of the box body, a display screen and a plurality of buttons are fixed to one side of the box body, the partition plate is fixedly installed on the inner wall of the box body, the lower sleeve is fixedly installed in the middle of the partition plate, the inner wall of the partition plate is slidably connected with an air pressure plate, an air pressure rod is fixed to the lower portion of the air pressure plate, and a hole is formed in the middle of the partition plate. According to the device, the problems that the test quality is influenced by a gap generated between an oil seal and a simulated gas spring due to the inaccurate simulation environment of the gas spring oil seal during the current oil seal tightness test, and the accuracy of a test result is greatly influenced by looseness caused by the fact that the simulated gas spring cannot be reinforced in the process are solved.

Oil pump testing equipment comprises a mounting seat for mounting and fixing an oil pump, a driving mechanism for driving the oil pump to rotate, a testing mechanism connected with the output end of the oil pump and an oil supply mechanism for supplying oil to the oil pump, the testing mechanism comprises a flow regulating valve, an overflow valve and an electronic meter, an oil outlet channel of the mounting base is connected with a first connector of a tee joint through a first oil pipe, a second connector of the tee joint is connected with the overflow valve through a second oil pipe, and a third connector of the tee joint is connected with the input end of the flow regulating valve through a third oil pipe; the output end of the flow regulating valve is connected with the input end of an electronic meter through a fourth oil pipe, and the output end of the electronic meter is connected with the oil tank; a fifth oil pipe is arranged between the input end of the flow adjusting valve and the input end of the electronic meter, and a switch valve is arranged on the fifth oil pipe. The output flow of the oil pump can be adjusted through cooperation of the switch valve and the flow adjusting valve, and the flow and pressure of the oil pump can be tested according to the relation between the oil pump rotating speed and the output flow.

The underground while-drilling gas logging testing device comprises a collecting and discharging mechanism, a drill rod, a water guide pipe and a drill bit, the drill rod, the water guide pipe and the drill bit are connected in sequence, a testing cylinder arranged outside the water guide pipe in a sleeving mode is installed on the drill rod, a testing and collecting module ring is installed outside the water guide pipe, and a testing cavity with an opening facing the drill bit is formed by the testing cylinder and the water guide pipe; a first inlet hole is formed in the end, close to the drill bit, of the testing barrel, a first outlet hole is formed in the end, away from the drill bit, of the testing barrel, a blocking mechanism is further installed outside the testing barrel and comprises a sleeve shell rotationally arranged outside the testing barrel in a sleeving mode, and a second inlet hole corresponding to the first inlet hole and a second outlet hole corresponding to the first outlet hole are formed in the sleeve shell. A sealing mechanism used for sealing a drilled well is further installed on the portion, between the second inlet hole and the second outlet hole, of the sleeve shell. The plugging mechanism further comprises a control mechanism used for controlling the sleeve shell to rotate.

The utility model relates to cement detection technical field especially relates to a cement detection electric bending testing machine, including operation platform, the operation platform top fixedly connected with mounting seat, the operation platform top mounting seat both sides position fixedly connected with mounting bracket, the mounting bracket top is equipped with hydraulic pressure rod, the hydraulic pressure rod bottom fixedly connected with the pressing block, the mounting seat top installation place in the pressing block bottom position is developed and provided with the upper clamp, the upper clamp bottom is developed and provided with the loading roller, the loading roller with upper clamp junction is developed and provided with mounting assembly, the lower clamp is provided with below the upper clamp, be provided with lifting assembly between the lower clamp and mounting bracket. The utility model not only can make loading roller can carry out quick installation and disassembly to improve the replacement efficiency when loading roller appears damage, and can make test piece can be adjusted to be closely combined with loading roller after being placed well to make test data more accurate.

The utility model discloses a device for a sealant fluidity test, which comprises a test board, a cylindrical counter bore for accommodating sealant is arranged on the test board, and a plunger is movably connected in the counter bore by penetrating through the test board; two fixing seats are oppositely arranged on one side of the base, a rotating rod is rotationally connected between the two fixing seats, and one end, far away from the counter bore, of the test plate is relatively and fixedly connected with the rotating rod; a rotary driving mechanism is arranged on the base, a driving shaft of the rotary driving mechanism is connected with the rotating rod, and the rotating rod is driven to rotate to drive the test board to realize switching between a horizontal placement position and a vertical placement position; a vertical column is arranged on the base, a linear driving mechanism is arranged on the vertical column, the output end of the linear driving mechanism is connected with a push rod, the axis of the push rod and the axis of the counter bore when the test plate is vertically placed are on the same straight line, and the linear driving mechanism is used for pushing the plunger. Test operation is completed in an automatic and mechanical mode, the test operation is simpler and more reliable, and test data are more accurate.

The utility model discloses a depth-adjustable gas turbine temperature and pressure detector, which comprises a probe tube, and a sensor used for testing jet flow temperature or pressure is arranged at the bottom end of the probe tube. The bottom face of the base can be fixed to a gas turbine tail shell around a gas turbine tail probe hole in a sealed mode, a bottom telescopic hole corresponding to the probe hole is formed in the base, the probe tube is located in the bottom telescopic hole and can stretch out and draw back in the bottom telescopic hole, and the peripheral face of the probe tube is attached to the inner wall of the bottom telescopic hole. The adjusting mechanism is used for adjusting the probe tube to stretch out and draw back in the probe hole. The adjusting mechanism comprises a knob with a threaded hole, external threads are arranged on the periphery of the exploring tube, the knob is sleeved outside the exploring tube through matching of the threaded hole and the external threads on the periphery of the exploring tube, and the distance between the knob and the base is limited. The device has the advantages that the temperature or the pressure of jet flow at different radial positions between the tail shell of the gas turbine and the turbine shaft can be detected, more accurate test data can be obtained, and the real working conditions of the temperature and the pressure in the tail shell of the gas turbine can be reflected.

The utility model relates to the technical field of tire performance testing, in particular to a tire puncture resistance testing device, which comprises a bottom plate, four groups of support columns, a top plate, a plurality of rows of puncture mechanisms, a position adjusting mechanism, a moving mechanism, a lifting mechanism, a lifting plate and a mounting mechanism, and is characterized in that the four groups of support columns are connected with the top end of the bottom plate, and the top plate is connected with the top ends of the four groups of support columns; the position adjusting mechanism is installed at the bottom end of the top plate, the moving mechanism is installed at the bottom end of the position adjusting mechanism, the lifting mechanism is installed at the bottom end of the moving mechanism, and the lifting plate is connected with the bottom end of the lifting mechanism. The multiple rows of puncture mechanisms are arranged and mounted at the top end of the bottom plate, the multiple rows of puncture mechanisms are used for testing tires of different specifications and types, and each of the multiple rows of puncture mechanisms comprises a fixing plate and multiple groups of puncture needles. The utility model provides a tire puncture resistance testing device, and aims to solve the problems of inconvenience in operation, inaccurate testing result, poor universality and the like of a tire puncture resistance testing device in the prior art.

The utility model relates to the technical field of automatic test systems, in particular to an automatic test system for a vector network analyzer, which comprises a test computer, a communication converter, a development board, a first programmable power supply, a second programmable power supply, a digital multimeter, a vector network analyzer, a frequency spectrograph and a test board. The communication converter communicates with the USB interface, and the first programmable power supply is electrically connected between the communication converter and the test board; the development board communicates with the serial interface, and the development board is electrically connected with the test board; the second programmable power supply, the digital multimeter, the vector network analyzer and the frequency spectrograph are respectively connected with the test board electric box, and the second programmable power supply, the digital multimeter, the vector network analyzer and the frequency spectrograph are respectively communicated with the network interface through a local area network. According to the automatic testing system, the efficiency is improved, the testing data are more accurate, the performance of the device can be reflected more truly, and meanwhile, the stored data result is also convenient to analyze and process.

This invention relates to a static high-temperature and high-pressure filtration loss testing device for drilling fluid and its usage method. The device comprises an adjusting seat, a heating jacket, an inner cylinder, and a pressure regulating component. The heating jacket is mounted on the adjusting seat, which is used to position the heating jacket at different tilt angles. The inner cylinder is located inside the heating jacket. The pressure regulating component is connected to the upper and lower ends of the inner cylinder via upper and lower valve stems, respectively. The inner cylinder includes a cylinder body and a filter assembly. An installation groove for installing the filter assembly is formed on the inner side wall of the cylinder body. A filtrate channel is formed inside the cylinder body, with one end connected to the installation groove and the other end connected to the lower valve stem. This static high-temperature and high-pressure filtration loss testing device for drilling fluid can obtain more accurate test data, better guiding the research and development of drilling fluid treatment agents and the evaluation of drilling fluid performance, especially for drilling fluid operations in deep and ultra-deep wells.

The utility model discloses a sugarcane conveying clamping device of a sugarcane harvester header height self-adaptive test bed, which belongs to the technical field of agricultural machinery test beds and comprises a conveying device, an earthwork supporting box is arranged on the conveying device, and a sugarcane fixing device is arranged in the earthwork supporting box. The sugarcane fixing device comprises a plurality of sugarcane fixing assemblies arranged at intervals in the length direction of the earthwork supporting box, and each sugarcane fixing assembly comprises at least two sugarcane root fixing clamps arranged at intervals. The sugarcane root fixing clamp is provided with a horizontal direction adjusting joint and a lodging angle adjusting joint. The sugarcane clamping mechanism has the capability of simulating the inclined or lodging state of sugarcanes, and solves the problem that the existing sugarcane clamping mechanism cannot simulate different sugarcane growth states.

The utility model discloses a testing device for detecting sugar concentration in liquid, which comprises a base, a transparent support frame is fixedly connected to the middle of the upper part of the base, a prism box is fixedly connected to the top end of the transparent support frame, a first fixing frame is fixedly connected to one end of the upper part of the base, and a second fixing frame is fixedly connected to the other end of the upper part of the base. The interior of the first fixing frame is rotatably connected with a rotating shaft, the inner side of the rotating shaft is fixedly connected with a light source plate, the rotating shaft is fixedly connected with a first gear, and a clear boundary can be collected on the camera by selecting a proper prism and adjusting the incident angle of a light source. The concentration of the sugar solution can be easily and reversely deduced by calculating the offset of the collected boundary, the device is simple in structure and convenient to miniaturize, and meanwhile, temperature compensation is introduced, so that the tested data can be more accurate.

This specification relates to the field of vehicle development and testing, and more specifically, the present invention relates to a motor zero torque control method and related equipment. The motor zero torque control method includes: obtaining the vehicle state; when the vehicle is in a gliding state, detecting the torque of the motor; when the torque of the motor is not zero, controlling the IGBT power module of the motor controller to disconnect, thereby limiting the output of three currents to the motor, so that the output torque of the motor is 0, avoiding the influence of factors such as ambient temperature, calibration accuracy and coupled reduction box on the vehicle's gliding zero torque, and in the vehicle gliding resistance test, it will not be disturbed by torque fluctuation resistance, making the test data more accurate. Compared with the existing bench calibration method, there is no need to calibrate the current value of the motor zero torque at each speed, which can save time, shorten the research and development cycle, and facilitate subsequent vehicle power and economy research.

This invention discloses a modular robot joint testing system. A frame is fixedly mounted at one end of the test base. A rotating rod is rotatably mounted on the top of the frame, with winding shafts symmetrically mounted at both ends of the rotating rod. Traction ropes are wound around the middle of both winding shafts, and light steel mounting blocks are fixedly connected to the bottom ends of both traction ropes. Laser displacement sensors are mounted at the middle of one end of each of the two light steel mounting blocks. The laser displacement sensors of this invention can move along with the robot joints. A laser capture display screen records the amplitude and trajectory of the laser displacement sensors' swing, making it easier for operators to express the motion trajectory and amplitude data generated by the robot joint tests. This greatly facilitates subsequent analysis of the test data, resulting in more accurate test data. Using laser trajectories to express the motion trajectory prevents minor joint swing errors from being indistinguishable to the naked eye.

This application discloses a test device for anti-interference capability of aircraft training, relating to the technical field of aircraft test devices. It includes a workbench, a soft pad, a hydraulic base, a test module, and a simulation test mechanism. The simulation test mechanism consists of a base, a test cylinder, a central shaft, a vertical plate, a movable sleeve, a top shaft sleeve, a secondary base, a pull rope, and an annular bladder. Through the cooperation of the electric telescopic rod, the movable column, and the top shaft sleeve, it simulates sudden pulling force on the aircraft and tests its fuselage stability and response capability under interference conditions. The device also has angle adjustment and airflow interference functions, which can simulate obstacle pulling and airflow interference scenarios in various real environments, improving the realism of the test and the comprehensiveness of the data.

The utility model relates to an optical testboard for testing optical performance, which belongs to the technical field of detection equipment and comprises a plurality of groups of bases which are arranged in a sliding manner, a Z-axis manual sliding table is mounted on one base, field angle test cards are mounted on the rest bases, an X-axis cross sliding table is mounted on the optical testboard, and the X-axis cross sliding table is connected with the Z-axis manual sliding table. An adjustable X-axis and Z-axis manual displacement table is mounted on the X-axis cross sliding table; and a clamp is mounted on the X-axis and Z-axis manual displacement table. According to the device, through the Z-axis manual sliding table, the X-axis cross-shaped sliding table and the X-axis and Z-axis manual displacement table, the up-and-down and left-and-right size from the end of the endoscope head to the front end to the test card can be accurately controlled, the end of the endoscope head is located at the ideal test position, backlight can be provided for the resolution test card through the LED backlight lamp panel, and test data are more accurate.

The invention provides a rock-soil sampling device for constructional engineering investigation, and relates to the field of rock-soil exploration sampling. The rock-soil sampling device for constructional engineering investigation comprises a transfer assembly, and further comprises a rack assembly, a drilling assembly, a sampling assembly and an auxiliary drilling assembly. The rack assembly comprises a base disc, sliding rods and a top disc, the multiple sliding rods are located between the base disc and the top disc, the upper ends and the lower ends of the sliding rods are fixed to the top disc and the base disc respectively, and the bottom ends of the sliding rods are installed on the transfer assembly. According to the rock-soil sampling device for constructional engineering investigation, by arranging the drilling assembly and the sampling assembly, the effects that sampling is smoother, and a sample cannot be disturbed due to pressure change can be achieved, and by arranging the sampling assembly, it can be guaranteed that the damaged sample at the bottom end of the hollow drill rod cannot be extracted during pre-sampling; the outer drill pipe is adopted to continuously extend for a certain length, so that the sampling result at the specified depth is more accurate.

The invention relates to the technical field of testing devices, and discloses a diode polarity testing device which comprises a base, a vertical plate is fixedly installed on the upper surface of one side of the base, two T-shaped sliding grooves are symmetrically formed in the upper surface of one side of the vertical plate, and T-shaped sliding blocks are slidably installed on the inner walls of the two T-shaped sliding grooves. The crankshaft rotates to drive the two groups of cross conducting rods to move downwards and upwards, the crankshaft drives the insulating disc to rotate, the insulating disc drives the conducting tube to rotate, positive and negative electrodes of the measuring multimeter are in positive and negative electrode connection with diode pins, and the quality of a diode can be visually judged through information displayed by the measuring multimeter. During batch testing, the positive and negative pins of the diode do not need to be manually aligned, the detection efficiency is greatly improved, and meanwhile, two data results can be tested by performing forward and reverse electrode connection on the diode, so that the test data is more accurate.

The utility model discloses a novel underwater bottom-supported in-situ substrate testing device. The novel underwater bottom-supported in-situ substrate testing device is characterized by comprising a main body frame, a propelling assembly and a shearing tester, the main body framework comprises a box-shaped framework and a halfpace framework at the top end; a conical bearing head is arranged at the top end of the halfpace framework; a plurality of parallel keels are fixed at the bottom end of the box-type framework, independent propelling assemblies are respectively fixed on the keels, and the propelling assemblies are connected with a shear tester; a top cabin of the propelling assembly is a closed space, a propelling motor is arranged in the closed space and connected with an inner magnet, and an outer magnet is arranged at the bottom end of the propelling assembly and connected with a rotatable lead screw. A lower cabin body of the shear tester is meshed with the screw rod, and an upper cabin body is fixedly connected with the lower cabin body; a driving motor is arranged in the upper cabin body and connected with an inner magnet, an outer magnet is arranged in the lower cabin body, and the outer magnet is connected with a rotatable cross-shaped shearing rod. When the device is used, the internal resistance only comes from the bearing, and the resistance change is small, so that the final test precision is controllable, and the accuracy of test data is ensured.

The utility model relates to the field of unmanned aerial vehicles, in particular to a meteorological monitoring system based on an unmanned aerial vehicle, which comprises a visibility sensor module, a mounting base and a power supply communication port, the visibility sensor module is connected with a mechanical structure of the unmanned aerial vehicle through the mounting base, and a single chip microcomputer is mounted on a structural member of the visibility sensor module. According to the utility model, factors such as visibility, atmospheric temperature, relative humidity, atmospheric pressure, wind speed, wind direction and the like can be accurately measured, and detection equipment transmits data back to the unmanned aerial vehicle remote control handle by means of a communication link of the unmanned aerial vehicle. The unmanned aerial vehicle meteorological monitoring system can realize rapid deployment of meteorological monitoring, and measurement, acquisition and transmission of meteorological disaster early warning detection data, and compared with a meteorological special sensor integrated measurement scheme, the unmanned aerial vehicle meteorological monitoring system has the advantage that the test data can be more accurate. And the assembly can adapt to various measurement environments, winding between the wire harness and the unmanned aerial vehicle is avoided, and the design period is greatly shortened through the integrated design.

The utility model discloses a gasoline engine VTG supercharger assembly integrated test bench relates to gasoline engine spare part test equipment technical field. The utility model discloses a bottom plate is provided with damping assembly at the top of bottom plate, and the top of damping assembly is provided with bearing frame. The utility model has efficient longitudinal damping buffering capacity and stability guarantee mechanism, when the supercharger produces longitudinal vibration in high speed or working condition switching test, and bearing frame will move up and down with vibration, and simultaneously drives the stable rod extrusion damping spring, buffer plate extrusion damper, and the longitudinal vibration is directly buffered through the cooperation of both, avoids vibration transmission to the main body of test bench and ground, improves the stability of test bench itself, prevents the resonance with surrounding equipment, guarantees the normal operation of surrounding equipment, and the limiting sleeve of bearing frame both sides moves along the surface of side plate, further strengthens the overall stability of bearing frame, avoids the test bench shaking problem caused by vibration.

The utility model discloses a TRC and concrete flexural member interface bonding slip test device, including flexural member, slip monitoring device, TRC reinforcing layer and distributed fiber bragg grating sensor, slip monitoring device includes center support, displacement meter fixed support and displacement detection subassembly, displacement detection subassembly is divided into displacement detection subassembly one and displacement detection subassembly two, and displacement detection subassembly one is used for detecting the tensile deformation of flexural member at the bonding interface, and displacement detection subassembly two is used for detecting the tensile deformation of TRC reinforcing layer, TRC reinforcing layer includes cement base and fiber braided net, and distributed fiber bragg grating sensor is connected with fiber braided net, and is used for detecting the strain value of TRC reinforcing layer. The test device of the application can comprehensively consider the interface bonding performance under the joint action of bonding normal stress and bonding shear stress, so that the test data is more accurate.

The present invention belongs to the field of adhesives, and specifically relates to a method for detecting the opening time of an adhesive. The method comprises the following steps: a. Starting from the glue dispensing starting point A on a fixed plate, the adhesive is dispensed on the fixed plate at a fixed speed v1 to form a glue line with a length of L3; b. Release paper is laid on the glue line, and a 100g load-bearing plate is placed 1 minute after the glue dispensing; c. The starting point where the glue line width becomes narrower is measured, marked as the narrowing starting point B, and the horizontal distance L1 from A to B is measured; d. The end point where the glue line width becomes narrower is measured, marked as the narrowing end point C, and the horizontal distance L2 from A to C is measured; then the start time of the adhesive opening T1 = L1 / v1+1min; the end time of the adhesive opening T2 = L2 / v1+1min. The method is applicable to all adhesive detection industries, and not only has the characteristics of a wide range of applications, simple operation and determination, but also can ensure the accuracy of detection data and improve detection efficiency.

This application relates to the field of mechanical testing technology, and proposes a shield tail sealing test device for a tunnel boring machine (TBM). The device includes a transparent test chamber, a hydraulic loading device, a gas delivery device, and a water supply device. The transparent test chamber contains a tail brush assembly, which divides the chamber into a hydraulic pressure chamber and multiple grease chambers. The hydraulic loading device includes a first hydraulic loading pipe, a first hydraulic piston and a first water circuit reversing valve disposed within the first hydraulic loading pipe, a second hydraulic loading pipe, and a second hydraulic piston and a second water circuit reversing valve disposed within the second hydraulic loading pipe. The first hydraulic loading pipe is connected to the hydraulic pressure chamber via the first water circuit reversing valve, and the second hydraulic loading pipe is also connected to the hydraulic pressure chamber via the second water circuit reversing valve. The gas delivery device is connected to both the first and second hydraulic loading pipes. The water supply device is connected to both the first and second water circuit reversing valves. This application has the effect of stabilizing the pressure of the test water.

The invention discloses a photovoltaic tracking system support mechanical testing equipment, wherein a mounting seat for mounting a structure to be tested is arranged on a base; a support frame is also arranged on one side of the mounting seat on the base, and a force detection device and a transmission mechanism are arranged on the support frame, wherein the force detection device is used to connect the structure to be tested to detect the tension or torque applied to the structure to be tested; the output end of the transmission mechanism is connected to the force detection device as a whole, and is used to drive the force detection device to move relative to the structure to be tested; a displacement detection device is also connected to the force detection device, and the displacement detection device is used to detect the change in the distance of the force detection device relative to the movement of the structure to be tested; thus, the force detection device is driven by the driving action of the transmission mechanism to move relative to the structure to be tested, so that the tension or torque applied to the structure to be tested changes, and the simulation of the tensile and / or torsional test conditions of the structure to be tested is realized. A corresponding test method is also disclosed. The invention has a simple structure, is convenient for testing, and has accurate measurement results.

This utility model relates to the field of extraction mixture measurement technology, and discloses an online multi-channel measurement device for the concentration of extraction mixtures. The device includes a housing, with a control cabinet fixedly installed on the left side of the housing. This utility model directly acquires mixture samples from different extraction tanks via an input mechanism, and immediately inputs these samples into a detection mechanism for concentration measurement at a constant temperature. The samples are then discharged by an output mechanism into the corresponding extraction tank, achieving rapid online measurement of the concentration of multi-channel extraction mixtures. Analysis is performed in a detection device next to the production line, effectively managing the number of samples, reducing workload, eliminating sampling time blind spots, and ensuring more accurate test data because the detection environment is consistent with the on-site environment. Relevant data can be quickly fed back to the production department, allowing production personnel to adjust the liquid volume immediately based on accurate data with minimal time lag, significantly improving product yield.

A vertical unmanned aerial vehicle test platform disclosed by the present invention comprises an upper platform and a lower platform, the upper platform is installed on the lower platform, the upper platform comprises a vehicle body fixing table, a fixing hole is formed in the vehicle body fixing table, the bottom of the vehicle body fixing table is connected with a ball seat through a fixing piece, and the lower platform comprises a hemispherical seat. The two hemisphere seats are oppositely installed at the top of the sliding shaft, the lower ends of the hemisphere seats are installed in the two hemisphere seats, a buffer block is installed in the middle of the sliding shaft, the lower end of the sliding shaft is installed in the supporting frame in a sliding mode, a spring supporting arm is installed at the bottom of the sliding shaft, and a spring is installed between the spring supporting arm and the supporting frame. And the spring is sleeved on the sliding shaft. The test platform is high in universality: under the allowable maximum weight of the test platform, for airplanes with different weights, the airplanes with different weights and sizes can be tested only by replacing the springs and changing the springs with different rigidities to meet different counterweight requirements, and the test platform is high in universality.

This application relates to a test apparatus for simulating a space environment, comprising a reaction chamber connected to and located inside a vacuum chamber, both the reaction chamber and the vacuum chamber being in a vacuum environment; an input / output component for inputting and outputting media into and out of the reaction chamber; a detection component for detecting environmental parameter values ​​within the reaction chamber and the vacuum chamber; an adjustment component for adjusting the amount of media input and output to and from the reaction chamber by the input / output component; and a controller sending adjustment commands to the adjustment component based on the detection values ​​from the detection component, which adjusts the input / output component to ensure that multiple environmental parameter values ​​within the reaction chamber are within preset ranges, including at least temperature, vacuum level, pressure, and electric field. This test apparatus enables relative pressure balance within and outside the reaction chamber, thereby reducing the impact of the sealing effect of the test apparatus on the test at ultra-low temperatures, and thus obtaining more accurate test data.