488results about How to "Simple test steps" patented technology

The invention relates to a servo valve test system. By adopting a cartridge valve to automatically switch static and dynamic oil lines, the servo valve test system can realize the full automatic one-step test and intelligent analysis of the static properties and the dynamic properties of an electro-hydraulic servo valve, improves the test efficiency of the electro-hydraulic servo valve, and increases the accuracy of the test results. Strictly based on the test standard of the electro-hydraulic servo valve GB / T15623-1995, the whole test method completes all the detection tests of the servo valve, and automatically displays and outputs the test results. The servo valve test system mainly comprises a hydraulic test system, an electrical control system and a data acquisition and processing system, wherein a servo valve to be tested is connected with the hydraulic test system and the electrical control system; a main oil line of the hydraulic test system is automatically switched to the dynamic oil line and the static oil line by a cartridge valve assembly, and the hydraulic test system is also provided with a dynamic cylinder for detecting the servo valve to be tested; and the data acquisition and processing system is connected with the electrical control system and the hydraulic test system.

A testing device for three-dimensional static stiffness loading of a machine tool comprises a parallel loading mechanism, a spindle interface, a force measuring module, a spindle deformation and displacement measuring device, a bench docking platform and a control system. The parallel loading mechanism is fixed on a bench of the machine tool through the bench docking platform, is connected with the spindle of the machine tool through the spindle interface and the force measuring module, and applies load to the spindle of the machine tool. In addition, the spindle deformation and displacement measuring device is also disposed on the bench of the machine tool. Deformation of the stressed spindle of the machine tool is measured by the aid of a high-precision displacement sensor disposed on the spindle deformation and displacement measuring device, and finally three-dimensional static stiffness of the machine tool is obtained. A testing method for three-dimensional static stiffness loading of the machine tool includes six steps. Three-dimensional static load can be applied to the machine tool for testing of three-directional static stiffness loading for the machine tool. The testing device and the testing method have practical value and promising application prospect in the technical field of machine tool performance testing.

The invention relates to the technical field of ATC responders, and discloses an automatic detecting system of an S mode responder. The automatic detecting system of the S mode responder comprises a control module, a signal processing module and a receiving and sending module, wherein the control module is used for sending inquiry data to the signal processing module, receiving responding data returned from the signal processing module, comparing and analyzing the responding data and originally-stored simulated responding data, and displaying the analyzed results; the signal processing module is used for analyzing and encoding the received inquiry data, then sending the inquiry data to the receiving and sending module, decoding the responding data returned from the receiving and sending module, generating a message format of the inquiry data and then sending the inquiry data to a control module; the receiving and sending module is used for achieving mutual transmission of signals between the receiving and sending module and the responder, and achieving frequency conversion, receiving and sending of the signals. According to the automatic detecting system of the S mode responder, accuracy detecting can be conducted on the specific field of the responding information of the S mode responder, manual detecting errors can be reduced, complex testing steps can be simplified, the testing period can be shortened, and working efficiency can be improved.

The invention discloses a river and lake bottom sludge pollutant flux test method and a river and a device based on a diffusion theory. The method comprises the following steps of: A, acquiring a bottom sludge sample; B, putting the bottom sludge into a base of an experimental device, and enabling the sludge surface to be horizontal; C, slowly injecting water to a column port along a column wall; D, injecting running water into the experimental device without the bottom sludge; E, standing for a certain time; F, measuring the pollutant concentration of the taken water sample; G, calculating a degrading coefficient of the pollutant in the water; H, calculating an initial concentration value of the bottom sludge water; and I, calculating a pollutant exchange flux of a water-sludge interface. A base plate is fixed at the bottom of a constant-temperature water tank; a base wall is arranged on the base plate; a lower flange disk is arranged on the upper part of the base wall; an upper flange disk is arranged at one end of a column body; and an upper flange disk fixing bolt flange hole is formed in the upper flange disk. The method is feasible, and is convenient to operate; the experimental device has a rational and simple structure; operations of accommodating deposits, sampling water samples and the like are extremely convenient; and outstanding economic benefit is achieved.

The invention relates to a device and a method for measuring voltaic arc pressure distribution and current density distribution, belonging to the technical field of voltaic arc testing. The device comprises a motor, a positioning frame, a guide rail fixed on the positioning frame, a sliding element mounted on the guide rail, a welding torch position regulating mechanism arranged at the lower end of the sliding element, a flat table surface arranged below the positioning frame, a container positioned on the flat table surface, anode plates arranged in the container, and a weighting sensor. During the measurement, the motor drives a guide screw to rotate so as to further drive a welding torch to move along a direction vertical to an insulating material. The values of voltaic arc force and voltaic arc current which are applied on the two anode plates are collected. Then, a mathematic model, which is about the value of the voltaic arc force and circle domain pressure distribution of the voltaic arc and about the value of the voltaic arc current and circle domain current density distribution of the voltaic arc, is established. Solving is carried out next. Then, curves about the circle domain pressure distribution and the circle domain current density distribution of the voltaic arc can be drawn. The device and the method realize the simultaneous measurement of the microcosmic voltaic arc pressure distribution and the microcosmic voltaic arc current density distribution. In addition, the device has a simple production process, and the testing steps are simple.

The invention relates to an optical axis parallelism calibrating system and a calibrating method. The optical axis parallelism calibrating system includes an auto-collimation theodilite, a data processing computer, and a plane mirror used for auto-collimation for the auto-collimation theodilite, wherein a to-be-tested optical system is arranged on an emitting light path of the auto-collimation theodilite, and is electrically connected with the date processing computer. The optical axis parallelism calibrating system and the calibrating method provided by the invention have the advantages of high testing precision, excellent real-time performance and wide application range.

The invention discloses a laser simulation single particle effect back irradiation test method for a memory circuit. The method comprises the following the steps: 1) hollowing the position at which a memory chip is adhered to a circuit board to be tested; 2) fixedly placing a memory circuit test sample on a three-dimensional translation platform, driving the three-dimensional translation platform, focusing pulse laser emitted from an external laser to the back surface of the memory chip after the pulse laser passes through a lens, and fixing the memory circuit test sample at the position in a vertical direction; 3) driving the three-dimensional platform to move, and scanning the memory circuit test sample in a two-dimensional plane; 4) monitoring the input and the output of the memory chip by using an FPGA (field programmable gate array), finding out and recording data errors and erroneous data addresses generated by data flip of the memory chip caused by the pulse laser. According to the method, the position of an error can be positioned accurately without an infrared camera.

The invention discloses a method and a system for progressive additional lens detection based on optical coherence tomography. The method includes: indirectly obtaining a three-dimensional image of a progressive additional lens by means of optical coherence tomography, working out the curvature radius of each point of a curved surface and thickness information of corresponding positions, and calculating to obtain optical characteristic parameters of the progressive additional lens according to known refractive index parameters in materials; and on the other hand, surface shape precision of the actual progressive additional lens can be evaluated according to the obtained three-dimensional image. A scanning detection system comprises a system light source, an optical fiber coupling and interference unit, a reference arm unit, a sample arm unit, a signal detection unit, a PC (personal computer) and a control circuit. By the method and the system for progressive additional lens detection based on optical coherence tomography, detection of optical characteristic parameters of the progressive additional lens can be realized while measurement of the whole surface of the progressive additional lens can be further realized. In addition, the method and the system for progressive additional lens detection have the advantages of high measurement resolution and precision, high reliability of measurement results, low cost and the like.

The invention relates to a method for obtaining the radar service life through temperature and humidity and electric stress accelerated degradation tests. The method comprises the steps: (1), selecting a test sample; (2), testing the test sample, namely, testing the selected test sample; (3), processing the test sample after testing, namely, after the test is completed, selecting various items of data of the test sample through a signal and detecting; and (4), obtaining the average service life of a radar, namely, judging the service life of a circuit board of the radar in different environments through various items of data measured in the step (3). The advantages of simple structure, low cost and high precision are achieved. The method is suitable for detecting the service life of the circuit boards of various radars.

The invention provides a method and a system for testing the performance of software. The method includes steps of connecting a test host with an intelligent terminal and enabling the test host to start the tested software installed on the intelligent terminal; carrying out application operation on the tested software and recording operation information of the application operation in a script recording mode; monitoring current application operation states in real time, replaying application operation procedures with failures by the aid of scripts when the tested software fails in the application operation procedures; storing the application operation procedures with the failures on the test host and determining the performance of the tested software according to the stored application operation procedures with the failures. The application operation procedures with the failures are replayed by the aid of the scripts. According to the scheme, the method and the system have the advantages that the scripts are started, the application operation on the tested software is recorded by the aid of the scripts, accordingly, test steps can be simplified, and the test efficiency can be improved.

The invention discloses a test system for intelligently diagnosing faults of a high-integration digital signal processing system, and aims to solve the problem of low fault diagnosis capability of anexisting boundary scanning test system. According to the technical scheme, an intelligent test platform management unit operates control software, collects data of multichannel signals, generates a test sequence, allocates physical addresses to all modules, lists all the modules connected to a system backboard on a software interface, processes the multichannel data and diagnoses faults; the control software calls boundary scanning test software to generate a test vector for the tested module, applies the test vector to the chip core logic input end to form a circuit fault criterion, and sendsthe circuit fault criterion to the boundary scanning controller; the test vectors of different regions are loaded to a tested module to generate a fault injection vector, and the fault injection vector is transmitted to a fault injection controller; and the fault injection vector is loaded to the tested module to complete the fault diagnosis of the multichannel signal processing subrack platformmodule-level digital chip.

The invention discloses a performance test method and device for a game engine, a storage medium and an electronic device. The method comprises the steps that an engine test pack of a to-be-tested target game engine is acquired, wherein the engine test pack comprises the target game engine and a test program used for testing the target game engine; in the process of using the target game engine to run a game application on a first terminal, hardware state data is acquired through the test program; and a performance test result of the target game engine is acquired according to the hardware state data. Through the performance test method and device, the technical problem that in the prior art, test efficiency is low because a single performance test method for the game engine is adopted is solved.

The present invention discloses a hybrid test method based on a vector finite element and an FPGA. The method comprises the following steps: dividing a to-be-analyzed structure into a numerical sub-structure and an experimental sub-structure; establishing a numerical model in an FPGA by using a parallel computing technology and adopting a vector finite element; writing an external compensation controller in the FPGA by using a control theory of feed-forward plus feedback; designing I / O in the FPGA to implement conversion and transfer between a numerical computation amount and an experimental simulation amount; running an FPGA hardware program regularly by using a LabVIEW real-time module; transferring data between FPGA hardware and a host computer by using FIFO; setting up a displacement loading device of the experimental sub-structure and establishing a connection with an I / O module of the FPGA hardware; and in the host computer, establishing a data communication interface between the host computer and an FPGA hardware terminal, so as to realize visualization of experimental data. The method provided by the present invention can effectively solve the problem of excessive computing pressure caused by numerical sub-structure calculation in a hybrid experiment, and is particularly suitable for a hybrid experiment in which a numerical sub-structure has a large number of computing degrees of freedom and requires real-time operation.

The invention provides a base station physical layer test method. The method comprises the following steps: a test script is configured according to configuration parameter; state setting is performed on the base station physical layer according to the test script and then data scheduling is performed; encoded and decoded data generated by the base station physical layer is read; and performance indexes of the base station physical layer are detected according to the encoded and decoded data. Meanwhile, a base station physical layer test system is provided. According to the invention, an independent physical layer test board does not need to be developed, so the process of troublesomely coordinating mobile terminals, the physical layer test board and the base station upper-layer protocol software can be omitted, so that the test steps can be simplifies and the test difficulty can be reduced.

The invention discloses a method for testing plugging effect of a leakage-proof plugging system while drilling. The method comprises the steps of (a) applying standard salt water to soak a rock core, so as to keep original properties of the rock core to the greatest extent; (b) measuring permeability before plugging; (c) plugging; (d) measuring the permeability after plugging; and (e) carrying out permeability recovery value test. With the adoption of the method provided by the invention, the plugging effect of the leakage-proof plugging agent while drilling can be rapidly tested; the test precision is high, and the test steps are simple; and the test cost is greatly reduced.

The invention provides a tensile test device for tensile test of binding strength between an electronic component body and a pin. The device comprises a base, a push and pull dynamometer, a rack and a fixture. The base comprises a support frame and an installation part; the push and pull dynamometer is mounted on a mounting portion and contains an extension part; the rack is connected to the extension part, and is used for hanging the body and towards the exposed pin on the base; and the fixture is arranged on the base, right opposite to the rack and for clamping the pin. The invention can avoid electronic component body deformation caused by a known tensile test device and eliminate complex steps of welding and welding removal of the pin and a test wire, and can solve problems caused by component force in the test, thereby having the advantages of convenient operation, stable test process, improvement on test efficiency and reliability.

An MAC address table aging time testing method. The present invention comprises the steps: a) common upper ring businesses are configured on the first, the second and the third node equipments in the RPR network topology, and the upper ring businesses have the same broadcast domain; b) the network tester in the RPR network topology transmits a data frame to the first node equipment through the first testing port, the second and the third testing ports of the network tester receive the data frame, and the time t1 is recorded; c) the second testing port takes the original address for the first testing port to send the data frame as the destination address continuous sending uicast fame, and the first testing port receives the uicast fame; d) when third testing port receives the unicast frame again, the time t2 the moment is recorded, the difference (t2-t1) f the t2 and the t1 is the measured MAC address table aging time. The method can accomplishes the whole testing during only one testing period, and the testing efficiency is improved.

The application provides a collector detection device. The device comprises a plurality of control branches,wherein each control branch comprises a first on-off device and a test controller connected in series. In a practical test, according to communication parameters of a collector to be detected at present, a master controller selects a control branch with a test controller matched with a carrier module of the collecter to be detected at present as a target control branch, and controls the first on-off device and a second on-off device to connect the collecter to be detected at present with the matched test controller, thereby detecting the collecter to be detected at present. Consequently, the collecter to be detected at present and the matched test controller can be automatically searched and connected, and compared with existing manual search and connection, the automatic search and connection has the advantages that test steps are simplified greatly, the detection efficiency is improved, and the adverse influence to equipment stability, caused by the fact that lines are pulled when a test controller is changed, is avoided.

The invention discloses a method for rapidly judging the structure type of asphalt concrete. The method comprises the following steps of: molding a full-gradation Marshall specimen according to the gradation of asphalt concrete to be evaluated, or coring from an asphalt pavement so as to obtain a cylinder sample of the pavement; cutting the specimen or the sample and taking a picture of the section of the specimen or the sample with a digital camera to obtain an image of the section; acquiring an area ratio n1 of coarse aggregate in the image of the section to the section by image processing software; according to the proportion of the coarse aggregate part in the gradation of asphalt concrete to be evaluated, compacting the Marshall specimen for molding coarse aggregate asphalt macadam and obtaining an area ratio n2 of coarse aggregate in the section of the specimen to the section; if n1 is smaller than n2, judging that the asphalt concrete is of a suspending type structure; if not, judging that the asphalt concrete is of a skeleton type structure. The method is mainly used for rapidly judging the structure type of the asphalt concrete; the method not only brings convenience for engineering technicians to preferably select the gradation of aggregate, but also can be used for controlling the construction quality of the asphalt pavement.

The invention provides a CIE1976L*a*b*color space determination method for chemical analysis of the color of liquid, and belongs to the technical field of measurement. The CIE1976L*a*b*color space determination method for chemical analysis of the color of liquid at least includes the step that two or more chemical reagents are added into a reaction vessel so that a chemical reaction can happen and the color can change after the reaction. The CIE1976L*a*b*color space determination method for chemical analysis of the color of liquid is characterized in that a color space method is used for measuring the changing process of the color of chemical reaction liquid. By means of the CIE1976L*a*b*color space determination method for chemical analysis of the color of liquid, digitized measurement of the color of chemical reaction liquid is achieved, measurement steps are simple, and automatic and batched large-scale detection can be achieved.

The invention discloses a bidirectional volumetric buoyancy adjusting device which comprises a main body fixing cylinder, adjusting modules and a control module. The adjusting modules are used for adjusting the drainage volume of the buoyancy adjusting device, and the adjusting modules comprise a first adjusting module and a second adjusting module; the first adjusting module and the second adjusting module have the same structure and are symmetrically arranged on the main body fixing cylinder; the first adjusting module and the second adjusting module work independently. The buoyancy of the device can be changed under the condition that the gravity center is not changed through independent or common cooperative work of the first adjusting module and the second adjusting module, the gravity center of the device can also be adjusted under the condition that the buoyancy is kept unchanged, the buoyancy can be continuously adjusted after the gravity center is adjusted, and double and continuous adjustment of the buoyancy and the gravity center is achieved. And the device obtains high stability underwater, and is suitable for a complex underwater working environment. The invention further discloses a testing device and a testing method for testing the bidirectional volumetric buoyancy adjusting device.

The invention discloses an automatic test system of a switch power supply, and relates to the test field of switch power supplies. The automatic test system comprises a switch power supply, a to-be-tested circuit board, an oscilloscope, an electronic load instrument, and a test computer. The switch power supply is arranged on the to-be-tested circuit board, and is connected to the oscilloscope. The switch power supply is also connected to the electronic load instrument through a cable. The electronic load instrument is connected to the oscilloscope through a GPIB interface. The oscilloscope is connected to the test computer through a GPIB interface. An automatic test on an unattended switch power supply is achieved. Test procedures are substantially simplified, the test efficiency is improved, and the utilization rate of test equipment is increased.

The invention discloses a device and method for measuring the hydrogen diffusion coefficient, which can be applied to the field of measurement of material performance. The device comprises a hydrogen diffusion measurement system, a temperature control system and a deoxidation system. Hydrogen diffusion coefficients of materials under different temperatures can be measured by adopting the device and method, the measurement temperature range is 15-95 DEG C, the deoxidation system can remove oxygen in the system more thoroughly, the impact caused by oxygen can be reduced, the diffusion coefficient of hydrogen in materials can be obtained more accurately. The device and method for measuring the hydrogen diffusion coefficient have the advantages of being simple in operation, low in cost and accurate in measurement results.

The invention relates to a method for measuring iron content in inorganic mineral, particularly relates to a method for measuring iron content in kaolin through using a spectrophotometer, and the method is simple and convenient in operation, and rapid and accurate. The method comprises the following steps: melting a test sample with sodium hydroxide at a high temperature, and acidifying with hydrochloric acid to obtain a sample solution; placing ammonium ferrous sulfate hexahydrate in a beaker, adding hydrochloric acid and water, dissolving, placing into a volumetric flask, adding water to a constant volume to obtain a standard iron storage solution, and diluting to obtain a standard iron solution; transferring standard iron solutions of different volumes into a set of 50mL volumetric flasks, diluting with water to about 15mL, adding a mixed color development solution, adding water to a constant volume, transferring into an absorption vessel after 15min, measuring absorbance with a spectrophotometer at a wavelength of 510nm, and calculating the slope of a standard iron working curve; and measuring absorbance and blank absorbance of the sample solution, and then calculating the iron content in kaolin.

The invention discloses a quantitative evaluation test method for coal core damage. According to the method of the invention, a triaxial loading system is used for applying confining pressure and porepressure to the coal rock core; the axial strain of the matrix of the coal core is recorded in real time through a strain gauge; the overall axial displacement of the coal core is recorded through adisplacement sensor; volume strain generated by the microcrack evolution of the coal core can be obtained through calculation; and due to the fact that the volume strain is closely related to a damagedegree, the damage variable of the coal core can be quantitatively calculated according to a continuous medium damage mechanics theory; a permeability change rule in a damage process is measured in real time according to a pulse attenuation method; the permeability change rule is compared with the calculated damage variable, so that a corresponding relation between damage and permeability can bedirectly established. According to the test method of the invention, required equipment structures and test steps are simple; and the calculation method is accurate and visual. The test method has definite physical significance, and can be used for the quantitative evaluation of damage variables and permeability evolution in experimental processes such as cyclic pulse air pressure permeability increase, creep deformation damage, and triaxial compression.

The invention relates to the technical field of the sampling of particulate matters in catering lampblack waste gas, and particularly to a detection method of no-clean particulate matter concentration as well as a sampling apparatus of the no-clean particulate matter concentration and a sampling device of the no-clean particulate matter concentration. The method detects the concentration of the particulate matters on the basis of a weighing method by adopting the detachable sampling apparatus; the sampling apparatus comprises a first half shell, a second half shell and a lampblack filter core; the lampblack filter core is arranged in a cavity formed by the first half shell and the second half shell; the lampblack filter core comprises a first membrane structure and a second membrane structure. The sampling device comprises the sampling apparatus. The problems that the traditional test method is not suitable for detecting the particulate matter concentration of the catering lampblack, the workload is large, the sampling apparatus is difficult to clean manually, a great amount of chemical reagents such as tetrachloromethane are used, the test is inaccurate, and the like can be solved.

A centrifugal micro-fluidic device and an immunoassay method using the same are provided. The micro-fluidic device includes at least one micro-fluidic structure, the micro-fluidic structure including: a sample chamber receiving a fluid sample; a first reaction chamber which is connected with the sample chamber and contains at least one labeling conjugate; a second reaction chamber which is connected with the first reaction chamber and contains a capture binder; a buffer chamber which is connected with the second reaction chamber and contains an elution buffer; a detection chamber which is connected with the second reaction chamber and receives the at least one labeling conjugate; a plurality of channels through which the first reaction chamber, second reaction chamber, buffer chamber and detection chamber are interconnected; and at least one valve which is positioned in at least one of the plurality of channels, and opens and closes the channel.

The invention discloses a measurement device and a measurement method for interface heat exchange coefficients and material heat conductivity. According to the measurement device, a heating componentis fixedly arranged outside one end of a box, a heating cavity of the heating component is communicated with an inner cavity of the box, a cooling water tank is arranged inside the other end of the box, a sample component is arranged in the box and located between the heating component and the cooling water tank, and heat insulation between the sample component and the side wall of the box is realized through an annular thermal-insulating layer; one end of an air inlet / outlet pipe extends into the heating cavity of the heating component, and the other end of the air inlet / outlet pipe extends out of the box and is connected with the outside environment and a pressure air source respectively through a three-way valve; an air pressure sensor in the heating cavity of the heating component anda pressure sensor on a pressure driver of the cooling water tank are in signal connection with a pressure signal collection module; a temperature collection element on the sample component is in signal connection with a temperature signal collection module; and the pressure signal collection module and the temperature signal collection module are electrically connected with a control module respectively. The device is used for measuring heat conductivity, a solid-solid interface heat exchange coefficient and a solid-liquid interface heat exchange coefficient.

The invention relates to a mechanical arm pose precision testing system which is reliable in data testing. The mechanical arm pose precision testing system comprises an air floatation platform, an air foot, a riding wheel, an air pump, a mechanical arm supporting frame, a balancing weight, a 6D laser tracker, an arm lever, a first joint, a second joint, a third joint, a fourth joint, a fifth joint and a sixth joint. The mechanical arm pose precision testing system is simple in structure and testing step, reliable in data testing, easy to implement and suitable for the test application field of space mechanical arms.

The invention relates to an indoor testing device and method for solidified residual soil by virtue of a microorganism grouting technique. The device is characterized by comprising an iron stand frame and a stainless steel splitting mold fixedly clamped on the iron stand frame, wherein the stainless steel splitting mold is filled with residual soil particles, a coarse sand pad layer and a gauze pad layer are sequentially arranged on and under the residual soil particles in the stainless steel splitting mold, ports of the stainless steel splitting mold are respectively plugged with an upper single-hole rubber plug and a lower single-hole rubber plug, a lower drainage tube penetrates into the lower single-hole rubber plug, a water stop clamp is arranged on the lower drainage tube, the upper single-hole rubber plug is sequentially connected with a flow guide pipe and a liquid storage device, and a peristaltic pump is connected to a middle section of the flow guide pipe. The indoor testing device is simple in structure and reasonable in design, resources are saved, and the difference between experiment data and actual soil property is reduced.