46results about How to "Simple test operation" patented technology

The invention relates to a method for evaluating pavement flatness by a light irradiation curve area method, which comprises the following steps: S1, erecting a fixed bracket on a working vehicle, arranging a laser transmitter and a graphic recorder on the fixed bracket, and arranging the graphic recorder on one side of a path of laser emitted by the laser transmitter, adjusting the path of laser emitted by the laser emitter to coincide with the datum line of the graphic recorder; s2, the laser transmitter transmits laser to the road surface, the linear laser generates light and shadow changes on the road surface, the graph recorder records a plurality of graphs defined by the light and shadow changes of the laser on the road surface above and below the datum line, the sum of the areas of the graphs is calculated through software, the deformation amount is obtained, and the larger the deformation amount is, the larger the deformation amount is. The flatness of the road is poorer. The road damage severity is evaluated according to the size of the area generated when the road loses flatness and the laser rays describe the contour, and the test operation is simple.

The invention relates to the technical field of software testing, and provides a GUI testing method and device of an application program, electronic equipment and a storage medium. In the process of running the to-be-tested application program, multiple pieces of GUI state information are collected; for each piece of GUI state information, obtaining each piece of matched target test knowledge from a test knowledge base according to the GUI state information, and generating a corresponding test prompt word in combination with the GUI state information; and generating a test strategy based on the GUI state information and the corresponding test cue word by using the multi-modal large model, and carrying out GUI test on the to-be-tested application program according to the test strategy by using the test tool so as to carry out GUI traversal test on the to-be-tested application program. Related test knowledge is obtained through the test knowledge base and cue words are generated to guide the multi-modal large model to output the test strategy so as to explore more interaction paths to carry out GUI test, so that the test operation is simplified, and the test efficiency and coverage rate are improved.

A horizontal double-ball quasi-optical cavity testing device for measuring the electromagnetic performance of a thin film material relates to the field of electromagnetic characteristic parameter testing, in particular to a quasi-optical cavity method testing system, and comprises a vector network analyzer (1), a frequency doubling module (2), a waveguide (3), a quasi-optical cavity (4), a sample clamp (5), a bidirectional transmission screw rod (6), a shielding frame (7), a displacement platform (8), a base (9) and a supporting block (10). The quasi-optical cavity (4) is of a double-spherical-cavity structure, is connected with the vector network analyzer (1) in a horizontal manner, and tests a sample by utilizing a resonance method; the sample clamp (5) adjusts the position of the sample by using a displacement platform (8); the shielding frame (7) can restrain miscellaneous molds, and the restraining effect is adjusted through the two-way transmission lead screw (6). The device has the advantages that the double-ball-cavity sensitivity is high, and the device is suitable for thin-film material testing; the horizontal structure is beneficial to connection of the vector network analyzer and the quasi-optical cavity; the double-ball cavity can measure the electromagnetic performance of the thin film material according to different odd and even modes.

The invention belongs to the field of battery testing, and particularly relates to a method for rapidly evaluating the performance of a silicon-carbon negative electrode material of a lithium ion battery, which comprises the following steps: (1) testing the specific surface area SA of a material to be tested; (2) carrying out a pressurization test on the material powder to be tested according to a set compaction density; (3) testing the specific surface area of the sample after pressure, and recording the specific surface area as SB; and (4) calculating the change value delta S = SB / SA-1 of the specific surface area of the sample before and after pressurization, and comparing the delta S with a reference value delta S0 to judge the material performance. The method has the advantages of simple sample treatment and test operation, convenience, rapidness and good feasibility, and can be used for rapidly evaluating the performance of the lithium ion battery silicon-carbon negative electrode material.

The invention discloses a multi-channel test circuit and method for MLCC capacitors. The circuit comprises a control unit MCU, a capacitor, a switching module, a plurality of clamping protection circuits and a plurality of tested MLCC capacitors. Wherein the input end of the switching module is electrically connected with a tested MLCC capacitor; the control unit is electrically connected with the control end of the switching module, and the control unit is also used for being electrically connected with an upper computer; the capacitance meter is electrically connected with the control unit and is also electrically connected with the output end of the switching module; one end of the clamping protection circuit is electrically connected with the input end of the switching module, and the other end of the clamping protection circuit is electrically connected with the capacitance meter. The capacitance meter can be protected from being burnt by residual high voltage of the capacitor, one or two capacitance meters can be tested in a multi-channel mode, the structure is simple, control is easy, the technology is simple, an electric circuit is simple and clear, testing operation is easy, interference between the capacitance meters is reduced, testing quality is improved, cost is reduced, and wide application is facilitated.

The invention discloses an Indel site related to soybean stem diameter, a molecular marker and application of the Indel site and the molecular marker, and belongs to the field of molecular marker assisted breeding. Carrying out PCR (Polymerase Chain Reaction) amplification and detection by using an amplification primer of the molecular marker 17-10.64 by taking the molecular marker 17-10.64 as a template; when the product fragment is 199bp, judging that the soybean to be identified is a soybean strain with thin stalks; and when the product fragment is 255bp, judging that the to-be-identified soybean is a soybean strain with thicker stalks. The molecular marker 17-10.64 contains an Indel site related to the soybean stem diameter, the Indel site is located at the No.17 chromosome 1, 064, 063 bp of the soybean, and the polymorphism is an amplified fragment difference of 56bp. According to the method, the soybean breeding time is shortened, the soybean breeding efficiency is improved, and powerful support is provided for efficiently developing and utilizing wild soybean germplasm resources and rapidly breeding lodging-resistant high-quality soybean varieties with thick and strong stalks.

The utility model relates to the junction temperature test technology, and discloses a test fixture for monitoring the junction temperature of a power semiconductor module, which comprises a test fixture body, the test fixture body comprises a test shell (1) and a test board (2), the test shell (1) is arranged on the test board (2) and forms a test cavity, the power semiconductor module (3) for testing is arranged in the test cavity, and the test board (2) is arranged on the test shell (1). The power semiconductor module (3) is connected with an NTC temperature sensor (4) used for testing the power semiconductor module (3). According to the power semiconductor module junction temperature test fixture, the NTC thermistor arranged in the power semiconductor module is utilized, the actual junction temperature in the module is accurately captured by connecting the pins of the NTC thermistor during normal-temperature and high-temperature tests, and the power semiconductor module junction temperature test fixture has the advantages of universality, simple operation, high reliability and high reliability. And only the test interface needs to be replaced according to the pin definition of the power semiconductor module.

The invention discloses a new energy vehicle battery pack bottom scraping test vehicle which comprises a test vehicle frame body, a mounting plate used for mounting a battery pack is arranged at the bottom of the frame body, and the angle of the mounting plate relative to the ground in the advancing direction can be adjusted. A hinge shaft is arranged between the front portion of the mounting plate and the frame body, and the mounting plate can rotate around the hinge shaft. Telescopic cylinders are arranged on the two sides of the frame body respectively, and telescopic rods of the two telescopic cylinders are connected with the two sides of the rear portion of the mounting plate respectively. The device has the advantages that under the condition that complex road conditions do not need to be set, the obstacles can form scraping impact on the bottom face of the battery pack at various angles, various needed test data are obtained, and compared with the prior art, the device cost can be remarkably reduced, and the test operation is simplified.

The utility model discloses a three-point bending test device for a test sample. The three-point bending test device comprises a bearing assembly, a locking assembly and a bending mechanism, the bearing assembly is provided with a base, a first bearing piece, a second bearing piece and a stop piece. The first bearing piece and the second bearing piece are oppositely arranged on the base. The first bearing member and the second bearing member bear the test sample. The stop piece is arranged on the first bearing piece and the second bearing piece. And the long edge of one side of the test sample sheet is propped against the stop piece. The locking assembly is provided with a locking piece and an adjusting piece. The locking piece is located on the side, away from the second bearing piece, of the first bearing piece. And the adjusting piece is connected with the locking piece. The adjusting piece adjusts the distance between the locking piece and the first bearing piece, and the short edge of one side of the test sample piece abuts against the locking piece. The bending mechanism is arranged above the bearing assembly. The bending mechanism is provided with a lifting assembly and a bending pressing head. The lifting assembly is connected with the bending pressing head. The bending pressing head is located between the first bearing piece and the second bearing piece. According to the utility model, the test operation is simplified, and the test efficiency is improved.

The invention relates to a method and a device for automatically testing SPI peripherals, which are based on a designed upper computer and lower computer test architecture and test mode, the test flexibility is high, parameters can be customized according to requirements, and various SPI signals can be flexibly generated; the test is more comprehensive, random data is supported to better verify the pressure resistance and robustness of the SPI peripherals, potential boundary conditions and abnormal conditions can be found, and the stability and reliability of a vehicle-mounted system are ensured; the application range is wide, the reusability is high, and the MCU with SPI (Serial Peripheral Interface) equipment can be tested; the test operation is simple, the test efficiency is high, the cost is low, and a single chip can be self-tested to reduce interference.

The utility model relates to the technical field of interface strength testing, in particular to an interface plugging strength testing jig which comprises a clamping assembly and a testing assembly. The clamping assembly comprises a fixed clamp and a rotating structure, the fixed clamp is used for clamping a to-be-tested product, the rotating structure is connected with the fixed clamp, and the rotating structure is used for driving the fixed clamp to rotate along a set angle so as to adjust the angle of a plug on the to-be-tested product; the testing assembly comprises a moving structure, a testing sensor and a testing head, one end of the testing sensor is connected with the testing head, the other end is connected with the moving structure, and the testing head is adjusted through the moving structure to press the plug. According to the technical scheme, automatic testing is adopted, in the testing process, the pressure for testing is constant, the testing accuracy is higher, testing operation is easy, the used time is shorter, the efficiency is higher, manual operation is not needed in the testing process, and safety is higher.

The present application relates to a software testing method, device, computer equipment and storage medium. The method comprises: obtaining software testing instructions based on a software testing management interface; the software testing instructions include a test scheme identifier, and determining a target test scheme corresponding to the test scheme identifier according to the corresponding relationship between the test scheme and the test scheme identifier; the test scheme is a scheme generated based on the test parameters configured in the test scheme creation interface, and software testing is performed according to the target test scheme to obtain a test report. The software testing method is simple to operate, improves testing efficiency, and does not require a third-party testing organization to perform testing, thereby reducing costs.

The utility model discloses an I-type three-level IGBT dipulse testing device, which comprises a dipulse generator, a topology circuit, an inductor, a rectification circuit and an oscilloscope, the inductor, the dipulse generator, the rectification circuit and the oscilloscope are electrically connected with the topology circuit, the topology circuit comprises an inner tube IGBT and an outer tube IGBT which are electrically connected, and the inner tube IGBT is electrically connected with the outer tube IGBT. The inductor is connected with the inner tube IGBT or the inductor is connected with the outer tube IGBT, the rectification circuit provides direct current for the topology circuit, the double-pulse generator is used for providing driving pulse signals for the inner tube IGBT and / or the outer tube IGBT, and the oscilloscope is used for receiving output voltage waveforms and output current waveforms formed by driving voltage of the inner tube IGBT and / or the outer tube IGBT. The device is suitable for various different test scenes, and the test universality is improved.

The invention belongs to the field of metallogy and heat treatment, and relates to a martensite hot work die steel austenite grain size detection method. The method comprises the following specific steps: (1) primary sample preparation; (2) sample heat treatment; (3) secondary sample preparation; (4) corroding; and (5) taking a metallograph and grading the grain size. Compared with an existing method for detecting other grain sizes of the medium-carbon medium-alloy martensitic hot work die steel, the method has the advantages that an oxidation method, a corrosion method and a metallographic method are comprehensively applied, so that the test process is more environment-friendly, convenient and reliable; the problems that in the prior art, the austenite grain size of the martensite type hot work die steel is difficult to detect, the grain boundary obtained through a single oxidation method is prone to being abraded off, and the grain boundary is not clear in appearance are solved, the austenite grain size is effectively graded more accurately and reliably, and therefore the objective experiment result is truly reflected, and the test efficiency is improved. And an effective reference is provided for subsequent experiment detection and engineering application evaluation.

The present invention belongs to the field of flow field testing technology, and specifically relates to a probe for measuring all parameters of a two-dimensional steady-state flow field in the boundary layer of the inner wall of a casing, including a probe head, a temperature sensor, a heat-insulating seal, a temperature sensor cable lead-out channel, a pressure measuring hole, a pressure-leading pipe channel, a probe support rod, a temperature sensor cable and a pressure-leading pipe. The probe head is cylindrical, and a pressure measuring middle hole, a pressure measuring left hole and a pressure measuring right hole that are not connected to each other are opened on the windward surface. A trapezoidal groove is opened axially on the leeward side facing away from the pressure measuring middle hole. The temperature sensor is placed in the trapezoidal groove and is located in the low-speed separation zone on the leeward side of the probe head. The probe for measuring all parameters of a two-dimensional steady-state flow field in the boundary layer of the inner wall of the casing of the present invention can simultaneously measure the total temperature, total pressure, static temperature, static pressure, Mach number, deflection angle, speed and density of the two-dimensional steady-state flow field in the boundary layer of the inner wall of the casing, and has the characteristics of small size, large airflow insensitivity angle, high reliability, high spatial resolution, high measurement accuracy and fast response time.

This application relates to the field of insulation testing and discloses an insulation testing connection device and an insulation testing system. The insulation testing connection device includes a housing, a switch assembly, a control assembly, and a power supply assembly. The housing includes a wall and a first chamber and a second chamber formed by the wall. The wall includes terminals for the device under test and terminals for the testing instrument. The switch assembly is located in the second chamber and connected between the terminals for the device under test and the testing instrument, used to control the on / off state of the terminals for the device under test and the testing instrument. The control assembly is located in the first chamber and connected to the switch assembly. This solution addresses the problems of complex operation and susceptibility to errors. By setting the control assembly to control the on / off state of the switch assembly, and thus controlling the on / off state of the terminals for the device under test and the testing instrument, selective testing between the device under test and the testing instrument is performed without the need for repeated plugging and unplugging, simplifying operation.

The invention discloses a double-notch rock shear strength test device, comprising a pressure system, a specimen device, a spring device, a roller group device and a control system; the specimen device is a double-notch rock specimen, the rock specimen is placed in the roller group device, and then placed in the center of the test machine press table, the pressure system is above the test machine press table, and there are lateral pressure systems on both sides, and spring devices are arranged in the two notches of the rock specimen, the spring device comprises a spring and an axial force sensor, and the two ends of the spring are respectively fixed on the top of the notch of the rock specimen and the axial force sensor, the control system comprises a computer host and a computer display, the axial force sensor is connected to the computer host, and the computer host is connected to the computer display. The invention adopts a double-notch rock specimen for testing, which makes up for the shortcomings of the complex conditions of conventional shear tests, and the test operation is simple, the specimen processing and installation are convenient, which provides convenience for research, the test actual analysis data is small, and the test results can be obtained relatively quickly.

The present invention provides a method for testing the bonding strength of an engine piston wear-resistant coating, and relates to the technical field of engine pistons. The method for testing the bonding strength of an engine piston wear-resistant coating uses a bonding strength testing device, which includes a first support seat, a reaction frame, a second support seat, an actuator, a first connecting seat, a first bonding seat, a second connecting seat, a second bonding seat, a stress sensor, an insulation box, a temperature sensor, a heater, a cooler, a force control acquisition unit, and a temperature control unit; the method includes the following steps: Step 1, bonding before testing; Step 2, temperature simulation; Step 3, force testing and recording. The testing method of the present invention is simple and reliable in testing operation, and can accurately measure the bonding strength of the piston wear-resistant coating at different temperatures, which can be used as an important indicator to test whether the wear-resistant coating is qualified, and provide data support for judging whether the piston wear-resistant coating meets the process requirements.

The invention discloses a method for predicting tensile strength of a metal material through Brinell hardness, which comprises the following steps: preparing a Brinell hardness test sample, and carrying out standard Brinell hardness tests of different test forces F1 and F2 on the surface of the test sample to obtain Brinell hardness values HBW1 and HBW2; s2, calculating plastic displacements hr1 and hr2 corresponding to different rated test forces by using the Brinell hardness values HBW1 and HBW2; s3, calculating elastic displacements he1 and he2 corresponding to different rated test forces by using the elastic modulus E and the Poisson ratio v of the material; s4, calculating total displacements h1 and h2 corresponding to different rated test forces F1 and F2 by using the plastic displacements hr1 and hr2 and the elastic displacements he1 and he2; and S5, calculating the tensile strength Rm of the material by using the test forces F1 and F2 and the total displacements h1 and h2. According to the method, the theory and finite element simulation analysis are combined, the relation model between the Brinell hardness and the tensile strength is established, and the method is suitable for obtaining the tensile strength of the ductile metal material through Brinell hardness prediction when a tensile test cannot be carried out.

The utility model belongs to the technical field of chemical reagent storage, and particularly relates to a chemical reagent storage device. The utility model provides a chemical reagent storage device and aims to solve the problem that chemical reagents are easy to take mistakenly in the prior art. A chemical reagent storage device comprises a flexible storage barrel and a sealing assembly dividing the flexible storage barrel into at least two independent storage cavities. The sealing assembly comprises a sealing part formed by bending the flexible storage barrel and a clamping device inserted into the flexible storage barrel to prevent the sealing part from loosening. Every two adjacent storage cavities are sealed through the corresponding sealing assembly, the storage cavities in the same flexible storage cylinder can store different reagents used for the same chemical reaction, and therefore the reagents can be effectively prevented from being taken by mistake and are not prone to being lost, the two adjacent storage cavities are sealed through cooperation of the clamping device and the sealing part, the sealing requirement is met, and the sealing effect is good. And different reagents for completing the same chemical reaction are combined together, so that the test operation is easy.

The invention discloses a rock mass lateral load flat plate test system and method. The system comprises a loading module for applying load to a rock specimen, a detection module for detection, a fixing module for fixing, and a data module for storing parameters; the fixing module comprises a loading frame, the loading module comprises a bearing steel pad, a loading steel pad, a guide rod and a jack, the bearing steel pad is fixed on the loading frame, the guide rod is slidably connected with the loading frame, the loading steel pad is fixed to the end of the guide rod, and is arranged in parallel with the bearing steel pad, and the two are located on the inner side of the loading frame, and the two ends of the jack are respectively fixed on the loading frame and the loading steel pad, and the loading steel pad can be pushed to apply load to the rock specimen; the detection module comprises a pressure gauge and a displacement sensor, the pressure gauge is respectively arranged on the bearing steel pad and the loading steel pad, and the displacement sensor is arranged on the rock specimen, so as to solve the problem that a reaction force device needs to be arranged in a flat plate load test device and the deformation of the loading frame is easy to affect the test accuracy.

The utility model discloses an inflatable cushion detection device which comprises a rack composed of a plurality of hollow square tubes and a workbench arranged on one side of the rack, an automatic rolling mechanism is arranged on the top of the rack and comprises a movable frame, a driving motor, a rolling wheel, a rack and a gear, the movable frame is movably connected to the top of the rack, and the driving motor is arranged on the rack. The driving motor is fixedly connected to one side of the machine frame, the rolling wheel is movably connected to the front end of the movable frame, the rack is fixedly connected to the bottom of the movable frame, the gear is movably connected to an output shaft of the driving motor and meshed with the rack, and the driving motor, the rack and the gear form a driving mechanism. The rolling wheel is controlled to roll on the inflatable cushion through the driving mechanism, automatic rolling testing is carried out on the inflatable cushion, complex testing operation is simplified, and working efficiency is improved.

The invention provides a network transmission test method and system, and is applied to a system composed of a wireless access point device and a target device, and the method comprises the steps: connecting the wireless access point device with the target device; obtaining distance information between the target device and the wireless access point device; and transmitting the test data packet to the target device through the wireless access point device, and detecting the data throughput of the target device to the test data packet.

The present invention discloses a centrifugal load test device for a hub, which comprises a base, a connecting bracket, a hub, a blade simulation part, a pulley, a steel wire rope and a test oil cylinder, wherein the connecting bracket is fixedly connected to the top of the base, and the hub is fixed to the top of the connecting bracket; the blade simulation parts are grouped in pairs and are respectively relatively fixedly connected to the two sides of the hub; a pulley is rotatably provided at one end of the blade simulation part away from the hub, the test oil cylinder is divided into two groups and respectively corresponds to the two blade simulation parts one by one, a tension sensor is fixedly provided at the free end of the test oil cylinder, a connecting roller is provided on the elastic body of the tension sensor, and the pulley at one end of the hub adjacent to the test oil cylinder is fixedly connected by the steel wire rope; the test oil cylinder and the tension sensor are respectively electrically connected to an external servo control system, and the test of the present invention is convenient for testing and has accurate measurement results.

The present invention belongs to the technical field of flow field testing, and specifically relates to a multi-point full-parameter long-life measurement device for supersonic two-dimensional flow fields, which is composed of a device head and a device support rod. The device head includes seven test units, and each test unit is composed of a temperature sensor, a heat-insulating seal, a temperature sensor cable lead-out channel, a pressure measuring middle hole, a pressure measuring left hole, a pressure measuring right hole, a pressure pipe channel, a temperature sensor cable, and a pressure pipe. After the device of the present invention is calibrated by a calibration wind tunnel, a device calibration curve can be obtained; in actual measurement, based on the data measured by the pressure measuring hole and the temperature sensor, and then according to the calibration coefficient curve and formula obtained by the calibration wind tunnel calibration, through data processing, the total temperature, total pressure, static temperature, static pressure, Mach number, deflection angle, speed, and density parameters of the measured two-dimensional steady-state flow field can be obtained at the same time, which increases the life of the temperature sensor and the airflow insensitive angle range, and improves the measurement space resolution and measurement accuracy.

This invention provides a six-degree-of-freedom simulator for low-gravity landing cushioning, comprising a landing leg assembly, a frame, an IMU, an air-bearing ball bearing, and a connecting column forming an attitude control platform and a translational platform. Four landing leg assemblies are evenly arranged on the frame. An air-bearing ball bearing is located in the middle of the frame, with an IMU mounted above it. The lower part of the air-bearing ball bearing is connected to the translational platform via the connecting column. A control component is also provided on the frame, and the landing leg assemblies and IMU are connected to the control component. The planar air cushion of the translational platform is used for support on a simulated tilting platform, and the landing leg assemblies act on the simulated landing surface. This invention can record attitude changes and the force and torque values ​​of the landing legs during landing, and compare the experimental data with simulation results from a full-physics simulation test.

The present invention provides a universal impact tester for bicycles, comprising: a bottom plate in the tester is arranged on a bottom fixing plate, feet are installed at the four corners of the bottom fixing plate, a rear axle support frame is fixed on the bottom plate, an outer cover shell is fixed on the upper part of the bottom fixing plate, linear guide rods are fixed on the left and right sides of the inner part of the outer cover shell, impact weights, electromagnets, and lightweight rollers are fixed on the linear guide rods through linear bearings, a wire rope winch, a servo motor reducer integrated component, and an encoder driven wheel are fixed on the upper cover shell at the top of the outer cover shell, the servo motor is connected to the encoder, the wire rope winch is connected to the servo motor reducer integrated component, the wire rope on the wire rope winch bypasses the encoder driven wheel and is connected to the electromagnet from the lower wire rope release port of the upper cover shell; a touch screen is arranged on the control cabinet, the touch screen is connected to the encoder and the electromagnet, and the touch screen is connected to the test module. The universal impact tester for bicycles described in the present invention can accurately control the magnitude of the impact force, simplify the test operation, and improve the test efficiency.

The present invention relates to the field of vehicle collision technology, and specifically to a vertical drop device for seats that simulates vehicle rollover. The device includes a drop generating device, a seat rollover simulation device, and a drop buffer device. The drop generating device is used to generate a natural gravity vertical drop of the seat and the passenger system; the rollover seat simulation device is used to install the seat and fix the passenger, and to simulate the instantaneous posture of the seat and the passenger at the moment of impact; the drop buffer device is used to generate impact force and perform a buffering protection function. The test device produces different degrees of collision and impact effects by adjusting different drop heights, simulates the passenger movement state when the vehicle rolls over and hits the ground through the seat and the passenger system, and conducts research on the passenger restraint system and the passenger injury response. The test device has good repeatability and low cost.

The present invention belongs to the field of flow field testing technology, and specifically relates to a probe for measuring all parameters of a subsonic three-dimensional steady-state flow field, including a probe head, a temperature sensor, a convection heat exchange groove, an insulating seal, five pressure measuring holes, a pressure pipe channel, a probe support rod, a pressure pipe and a temperature sensor cable. The probe head is cylindrical, and the top of the cylinder has a concave ball socket structure perpendicular to the center line of the cylinder. The inner wall of the ball socket is provided with a pressure measuring middle hole, a pressure measuring upper hole, a pressure measuring lower hole, a pressure measuring left hole and a pressure measuring right hole that are not connected to each other, and a cross-shaped convection heat exchange groove is provided on the back of the ball socket. The temperature sensor is placed in the convection heat exchange groove and faces the center line of the pressure measuring middle hole. The probe of the present invention can simultaneously measure the total temperature, total pressure, static temperature, static pressure, Mach number, deflection angle, pitch angle, speed, density and other parameters of a subsonic three-dimensional steady-state flow field, and has the characteristics of small size, long life, wide airflow insensitive angle, high reliability, high spatial resolution and high measurement accuracy.