315results about How to "Experimental data is reliable" patented technology

The invention discloses a device and a method for testing a gas-liquid sulfur phase permeation curve of a high-temperature high-pressure high-sulfur-content gas reservoir. The testing device comprises a displacement system, a stratum condition simulation system, a back-pressure system, a data testing system and a data acquisition system. The testing method comprises the following steps: selecting and treating a rock core; preparing rock core saturated stratum water and liquid sulfur; simulating a high-temperature and high-pressure environment of the stratum; determining the condition of liquid sulfur phase permeability under irreducible water saturation; performing a phase permeation test on filling of gas-liquid sulfur according to a set ratio; recording the amount VSi of liquid sulfur and the gas amount Vgi generated totally; correcting the stratum condition; calculating the relative permeability Krs of the liquid sulfur phase, the relative permeability Krg of the gas phase and the gas saturation Sg of a rock sample at each moment and the like. The device and the method disclosed by the invention can be used for safely, conveniently, rapidly, accurately and efficiently measuring the high-temperature high-pressure gas-liquid sulfur phase permeation data and providing scientific data support for making a reasonable development scheme for the high-sulfur-content gas reservoir.

The invention discloses a device and a method for high-accuracy measurement of expansion coefficients of a metal wire. The method uses a PZT oscillating mirror system to perform frequency modulation on incident light at different times, can not only modulate parameter information to be measured to a phase difference, but also modulate the parameter information to be measured to in a frequency difference for the convenience of later signal treatments; and the device consists of an interference system, a high-speed PZT oscillating mirror system, a heating system and a signal processing system. Comparing the method with other measuring methods, a multi-beam laser heterodyne measuring method for measuring the expansion coefficients of the metal wire has the advantages of high space and time resolutions, high measurement accuracy, high linearity, quick dynamic response, large measuring range and the like, and simultaneously the method has the advantages of simple structure for an experimental apparatus, low power consumption, convenient operation, high repeatability, small experimental result error, high accuracy and the like. Because experimental phenomena are obvious and experimental data is reliable, the method and the device can be widely applied in the fields of engineering designs and the like, and have very high practical values in the field of laser ultra-precision measurements.

The invention provides a multifunctional rotor test bench which comprises a shafting misalignment fault simulation mechanism, a moving-static-rub-impact simulation mechanism. The shafting misalignment fault simulation mechanism comprises a motor rotary table, two bearing seats supporting a rotor and a coupler. The motor rotary table is arranged on a base and can drive a motor to rotate by a certain angle. The two bearing seats can drive the rotor to move in the radial direction. The moving-static-rub-impact simulation mechanism comprises a stepped turn plate and a rub-impact frame. The rub-impact frame and the stepped turn plate are adjustable in the axial direction, the stepped turn plate and the rotor are fixed, the rub-impact frame and the base are fixed, the stepped turn plate is provided with a detachable rub-impact bar, and the rub-impact frame is provided with a spring plate and an eddy-current sensor. The coupler comprises a motor end flange disc, a rotor end flange disc and an adjusting block arranged between the motor end flange disc and the rotor end flange disc, and the adjusting block is selected to be used according to simulation states. The multifunctional rotor test bench has the advantages of being multiple in function, wide in application range, and visual in test process, and filling the blank of mechanical rotor composite fault simulation.

The invention provides a thermal environment impact performance test device of a composite material blade under multi-point impact excitation, comprising a power supply module, a measurement module, amulti-point impact module, a clamping module, a thermal environment module, a projectile recovery module and a platform body module, wherein the thermal environment module is disposed on the platformbody module for providing an adjustable high temperature test environment; the clamping module is disposed in the thermal environment module for clamping and fixing a blade test piece to be tested; the multi-point impact module is disposed on the platform body module for simultaneously launching a plurality of projectiles to impact the blade test piece; the power supply module is used for providing power for the multi-point impact module; the projectile recovery module is placed in the thermal environment module and is located behind the clamping module for recovering the projectiles; and themeasurement module is used for measuring a vibration size, a projectile trajectory, an impact force and noise. The device simultaneously realizes multi-point impact excitation and thermal excitation,simulates the situation that multiple points of the composite material blade are impacted at the same time, and provides more realistic and reliable experimental data for the impact test.

The invention relates to a direct-acting soft friction testing apparatus comprising a supporting stage. A lower sample fixing rack is arranged on the upper part of the supporting stage, and is connected with a driving mechanism. Under the driving of the driving mechanism, the fixing rack can move linearly in a plane. An upper sample assembly is arranged on the upper part of the lower sample fixing rack, and is connected to a loading mechanism which can apply a pressure downwards. A friction force detecting mechanism is connected with the upper sample assembly. Two samples with different elastic modulus are respectively fixed in the upper sample assembly and on the lower sample fixing rack. With the loading mechanism, the upper sample is pressed against the lower sample. The apparatus is advantaged in simple structure. Various testing parameters can be easily changed. When the lower sample is manufactured by using a transparent material, an elastic material surface deformation image and a residual liquid distribution image on a contact area can be acquired in real-time. Therefore, a solution is provided for optimizing selection of soft friction materials in complicated environments.

The invention relates to a method for testing the single crystal boundary impact aging characteristic of a zinc oxide pressure-sensitive resistor and belongs to the technical field of quantitative analysis of fine electrical materials. The method comprises the following steps of: grinding and polishing a tested sample, depositing a micro silver electrode array on the surface of the sample, observing by using a precision microprobe platform and an optical microscope, allowing a probe point to be firmly contacted with a microelectrode on the sample and measuring the volt-ampere characteristic curve of a single zinc oxide crystal boundary; repeatedly applying impact current to the sample and measuring the volt-ampere characteristic curve data of a single crystal boundary in different current impact-bearing stages; and calculating parameters, such as a nonlinear coefficient, breakdown voltage, leakage current and the like corresponding to the crystal boundary and obtaining the rule of the influence of the impact current on the characteristic of the single crystal boundary. In the method, the aging rule of the crystal boundary is shown more intuitively and a novel test and analysis method for the researches of the conductive mechanism, the aging mechanism and the modification of the zinc oxide pressure-sensitive resistor is provided.

The invention discloses a device and a method for evaluating the segregation degree of cement concrete. The device comprises a supporting component, a testing component and a density measuring component, wherein the supporting component comprises a base, a vertical arm, a cross beam, a lifting device and a bolt; the testing component comprises a fixing screw, a vibrating device and a containing chamber; the density measuring component comprises a stand column, a density instrument, a sliding rail, a fixing device and a guide rail. The device can simulate vibrating conditions of the cement concrete during transportation and vibration to provide more real testing data. The density measuring component is added, so that the density of the cement concrete can be measured accurately in real time. The testing device is convenient to operate, good in economy and high in practical value.

The invention provides an experimental device for simulating corrosion in a crude oil pipeline. The experimental device comprises a temperature-control water bath tank, a corrosion experimental tank, a condensate water tank, a condensate water tube, a water storage tank, an oil conveying tube and an oil storage tank, wherein the temperature-control water bath tank and the corrosion experimental tank are of structures without top covers; the corrosion experimental tank is positioned inside the temperature-control water bath tank; the upper part, which is positioned in the temperature-control water bath tank and the corrosion experimental tank, of the condensate water tank forms the top cover; a circulating loop is formed between the condensate water tank and the water storage tank through the condensate water tube, and a circulating water pump is arranged on the condensate water tube; a circulating loop is formed between the corrosion experimental tank and the oil storage tank through the oil conveying tube, and a circulating oil conveying pump is arranged on the oil conveying tube; a storage rack is arranged at the inner lower part of the tank body of the corrosion experimental tank, and a plurality of sheet suspenders are arranged on the storage rack; a plurality of first corrosion clamping slots are formed in the bottom of the condensate water tank; corrosion test pieces which are matched are placed in the first corrosion clamping slots and the sheet suspenders. The experimental device is simple in structure, convenient to operate and strong in practicability, and the corrosion state in the pipeline can be evaluated in most of laboratories.

The invention discloses a single-leg impact control experiment platform for a robot. The single-leg impact control experiment platform comprises an integrated controller, a robot leg lifting device, a test bed bracket, a static loading device, a six-dimensional force sensor and a five-dimensional force measurement platform, wherein the test bed bracket comprises a test bed bracket base and a test bed bracket vertical column; the integrated controller is fixed on the test bed bracket base; the robot leg lifting device is fixed on the test bed bracket; the static loading device is fixed on the robot leg lifting device; the six-dimensional force sensor is arranged between the lifting device and a robot body; and the five-dimensional force measurement platform is fixed on the ground below the six-dimensional force sensor. The single-leg impact control experiment platform can obtain indexes such as a dynamic response characteristic of single-leg popping motion under different constant loads and the structural stability of a single leg under the action of large short-time impact. The platform is simple in structure and runs stably and reliably.

The invention belongs to the technical field of oil reservoir development, and in particular relates to a manufacturing method of an intraformationall heterogeneous core capable of realizing separated injection and separated production, and an experimental method thereof. The manufacturing method comprises the following steps: firstly, weighing the quantity of quartz sand and epoxy resin for manufacturing high, medium and low permeable layers with the design size, and mixing the quartz sand and the epoxy resin uniformly and correspondingly; secondly, putting isolating bakelite plates among lower, middle and upper layers of mixed sand in the length direction end face, putting metal moulds separately, scraping, pressurizing and drying, adhering a core end cover to a core end face, coating the surfaces of the other parts of the core with one layer of thickened and uncured epoxy resin, and naturally drying; finally, putting the adhered end cover core into a wood mold, performing integral casting by using the epoxy resin, and curing to form the intraformationall heterogeneous core capable of realizing separated injection and separated production. The manufacturing process is simple to operate, the experimental data is reliable, and the problem that each small layer wave, the state and the reserve recovery degree of the intraformationall heterogeneous core cannot be evaluated quantitatively is solved.

The invention discloses a Y-type intersection river pollutant transport and mixing simulation experiment device and a test method. The device comprises a pollutant tracer discharge device, a water flow circulation device, a flow regulating device and a measuring device. The pollutant tracer discharge device comprises an overflow flat water head drainage tank and a tracer discharge port. The overflow flat water head drainage tank is connected to the tracer discharge port through a hose. The water flow circulation device comprises an intersection angle variable and slope variable Y-shaped watertank and a reservoir. The measuring device measures conductivity of each point of the cross section and calculates the concentration of the tracer sodium chloride so that the transport and mixing variation rule of the pollutants in the Y-shaped river is acquired. The method has the characteristics of flexible change of the intersection angle and slope and provides a novel tool and method for the study of the pollutant transport law.

The invention discloses a high-speed train wheel track contact stress test bench. A rack of the test bench is provided with a left wheel carrier and a right wheel carrier for mounting a wheel set; the wheel axle of the wheel set is mounted on the left and right wheel carriers through bearings; the left end of the wheel axle is also connected with an output shaft of a speed reducer through a dynamic load clutch; an input shaft of the speed reducer is connected with a drive motor shaft through a coupling; the right end of the wheel axle is connected with an output shaft of a static load servo motor through a static load clutch; the static load servo motor is mounted on the rack through a servo motor frame; a strain detection device is mounted on the wheel set and connected with a wireless transmission device; a signal sent by the wireless transmission device is received and processed by a data processing device. The test bench can more truly simulate the stress generated by the train wheel set in the working condition of high-speed rotation, ensures more accurate, complete and correct monitoring results, and provides more reliable experimental data for the improvement of safety and comfort of train operation.

The invention relates to a high-speed train-tunnel aerodynamic characteristic movable model experiment system which comprises an air cannon launching device (6), a train model (1), a tunnel model (2) and a guide rail (3) in the tunnel model (2); the section of the cannon tube (4) of the air cannon launching device (6) is in the shape of a gate arch, the shape of the bottom (3') thereof is the same with the shape of the guide rail (3) in the tunnel model (2), and the bottom (3') and the guide rail (3) in the tunnel model (2) are connected into an integrated structure; and the section of the guide rail (3) is in an I-shaped structure, the middle at the bottom of the train model (1) is matched with the I-shaped structure of the guide rail (3), and the train model (1) is embedded on the guide rail (3) in a sliding mode. Through the system, the train model stably runs on the guide rail, the train model has large size and is more approximate to the real state of train running, and the aerodynamic characteristic of a train running in a tunnel can be better simulated and researched.

The invention discloses an experimental system and an experimental method for convective condensation in a mixed working medium Marangoni condensation pipe. The experimental system comprises an experimental working medium circulating system, an auxiliary vacuumizing condensation system, an experimental section adjusting system, a loop cooling system and a data measurement and acquisition system, wherein an experimental working medium enters a steam generator from a liquid storage tank, and generates steam which enters an experimental section; the steam is cooled by means of an annular double-pipe heat exchanger, is condensed in an experimental pipeline and passes through a gas-liquid separator; and the incompletely condensed mixed working medium is completely cooled by means of a condenserand finally returns to the liquid storage tank. The invention further provides an experimental method of the experimental system. The experimental method can be used for visual experiment research ofthe Marangoni condensation flow pattern in the mixed working medium pipe, is used for acquiring a condensation heat exchange mechanism in the pipe, is suitable for research of various working media and different working conditions, can simply, conveniently and rapidly adjust system parameters, and provides reliable experimental data and theoretical support for industrial application of bead condensation and optimal design of the heat exchanger.

The invention relates to the technical field of impact compression loading, in particular to a shock wave time calibration device and method for a shock test. The calibration device comprises a controllable high-speed emitting device, a target chamber and a signal collecting device, wherein the target chamber is a vacuum target chamber; an experiment target is arranged in the target chamber; the experiment target comprises a substrate, a fixed column, an optical probe and an electric probe; a light-emitting gap is formed between the substrate and the fixed column; the optical probe and the electric probe are connected with the signal collecting device; and the controllable high-speed emitting device is used for driving a flyer to impact the left side wall of the substrate. According to thecalibration device and method, two waveforms generated according to signals detected by the electric probe and the optical probe are comparatively analyzed, and a more accurate waveform data graph isselected to finally judge a time point when a shock wave enters a sample, so that an important parameter, namely, the time point when the shock wave enters the sample can be more accurately calibrated, and follow-up experiment data is more reliable and effective.

The invention relates to an indoor model shield construction machine used for simulating the interval tunnel shield construction of urban subway, which comprises a digging device, a helix unearthed device and a propelling unit; wherein, a. in the digging device, a round shield shell is separated into a front soil cabin and a rear engine room by a clapboard, a cutter shaft is arranged in the middle of the clapboard by a cutter bearing, the front end of the cutter shaft is connected with a cutter, and the rear end thereof is connected with a cutter motor by a transmission gear; b. in the helix unearthed device, the front part of a screw rod is positioned in the soil cabin at the back of the cutter, the other parts are sheathed in an unearthed sleeve in the engine room by passing through the clapboard, and the rear end of the screw rod is connected with a motor of the unearthed device; the front end and the rear end of the unearthed sleeve are respectively fixed on the clapboard and the engine room, and the rear part thereof is opened with an unearthed hole; c. in the propelling unit, four longitudinal jacks are distributed at the tail end of the engine room; the machine can simulate the whole process of construction of dynamic tunnelling, unearthing, propelling, assembly, decycling and the like, of an earth pressure balanced shield construction machine, provide the real and accurate test data for the tunnel shield construction of the urban subway as for the adaptability or influence of stratum, and guarantee the efficient and safe process of the urban subway construction.

The invention discloses a device for simulating a slope with a seepage-freezing-thawing coupling action and a using method thereof, and is mainly used for simulating the stability of the slope with the seepage-freeze-thawing coupling action. A seepage effect mainly comprises a rainfall system and a groundwater system, the rainfall system is mainly used for simulating the stability of the slope under different rainfall intensity and time conditions; the groundwater system is mainly used for simulating the stability condition of the slope under the conditions of different groundwater heights, and in the device, the stability of the slope under a confined water condition and the stability of the slope under a diving condition can be simulated. A freezing-thawing system mainly consists of a freezing device, a rainfall water source and a groundwater source, and is used for simulating the stability of the slope under the freezing condition and the spring thawing condition of a slope body inwinter. A seepage working device and a freezing-thawing working device in the system not only can work independently, but also can work cooperatively and jointly, so that the slope stability monitoring is completed jointly, and reliable experimental data and technical support are provided for engineering design.

The invention relates to a method for testing the maximum compacted density and the peel strength of a lithium cell pole piece. A testing pole piece surrounds a steel core having a preset diameter to simulate the probable bent state when the pole piece is wound in the production of the lithium cells. The test result is well combined with the production practice, so that the experiment is able to serve the production practice.

The invention relates to an in-situ exploitation flow-heat transfer experiment device for compact oil shale, and belongs to the technical field of experiment measuring instruments. The device comprises a flow-heat transfer core holding unit, an axial-confining pressure injection system, an axial-radial pressure stabilizing system, a temperature-strain monitoring system, a liquid cooling circulating system, a safety backflow preventing system, a flow monitoring system, a gas collection-recovery system and a control and data recording system cooperating with each other. According to the device,a thermal fluid medium with pressure is injected into a core with a fracture in the flow-heat transfer core holding unit, and axial and radial strains are observed to determine a critical temperaturepoint that the fracture in the core closes up under the condition of heat injection and critical pressure that the fracture is opened again under the pressurizing condition of the thermal fluid mediumin the later period, and thereby, closure critical parameters of the fracture during in-situ exploitation are obtained; and the permeability variation situation of the core with the rock mass fracture can be evaluated through the conditions of flow before changes and flow after changes, and thereby, reservoir fractures effectively communicate for a long term by regulating site construction parameters to facilitate heat injection and oil and gas migration in the later period.

The invention belongs to the technical field of building material detection, particularly relates to a detection method of early autogenous shrinkage of cement mortar, and solves the problem of the testing of early autogenous shrinkage of cement mortar. The size of the autogenous shrinkage of cement mortar at an early stage is reflected mainly by directly measuring the volume change of the cement mortar over time. By using the method, the autogenous shrinkage of the cement mortar at an early stage can be measured accurately, and the method is also applicable to the measurement of early autogenous shrinkage of cement purified pulp. The invention is applicable to practical production and scientific research.

The present invention is a three-hole rock core kettle and an ultra-low-permeability reservoir fluid damage evaluation test apparatus and method, the three-hole rock core kettle takes upper and lower cover bodies for clamping a rock core sample, and the upper and lower cover bodies are respectively provided with through holes communicating rock core sample surface. The ultra-low-permeability reservoir fluid damage evaluation test apparatus includes the three-hole rock core kettle, an upstream simulated formation fluid intermediate vessel, a downstream simulated formation fluid intermediate vessel, a to-be-tested fluid intermediate vessel, a plunger pump, a vacuum pump and a nitrogen bottle; the various components are connected by pipes, and corresponding control valves, gas pressure regulation valves and back-pressure valves are arranged. The ultra-low-permeability reservoir fluid damage evaluation test method is as follows: simulated reservoir fluids with same activity are contacted with upper and lower surfaces of the rack core sample, meanwhile the simulated reservoir fluid continuously flows on the upper surface of the simulated reservoir fluid, osmotic pressure transmission is eliminated, and by monitoring of the change with time of downstream fluid pressure, penetration rates of the sample before and after contamination can be obtained, and further damage degree can be evaluated. The three-hole rock core kettle is simple in structure, the test apparatus and method are easy to use, the test pressure is reduced, and experimental data is reliable.

The invention relates to the field of petroleum exploitation and discloses an imbibition and extraction device. The imbibition and extraction device comprises a kettle body (2) and a kettle body cover(1), a baffle plate (5), a clamping part (6), an imbibition bottle (7), a stirrer (8) and a pressurizing port, wherein the kettle body cover and the kettle body are made from a high-temperature and high-pressure-resistant material; the baffle plate (5) is detachably arranged on the side wall of the kettle body; the clamping part (6) is arranged on the bottom face of the kettle body; the imbibition bottle (7) comprises a hood body and a metering tube, the hood body covers the clamping part, and the metering tube is fixedly arranged on the baffle plate; the stirrer (8) is fixed to the bottom face of the kettle body; and the pressurizing port is formed in the side wall of the kettle body; the stirrer is located below the clamping part and the stirrer is not in contact with the rock core clamped to the clamping part in the operating process. By stirring an experimental liquid through the stirrer, oil drops suspended on the rock core wall are peeled from the rock core wall to arrive at themetering tube of the imbibition bottle, so that the experimental data precision is improved greatly.

The invention discloses a sole frictional wear testing device and a testing system, and belongs to the field of testing equipment. The sole frictional wear testing device comprises a fixing piece, a friction piece, a bionic motion piece and a natural environment simulation piece, wherein the fixing piece, which is driven by virtue of the bionic motion piece, can make a shoe get into friction withthe friction piece. In addition, by virtue of the natural environment simulation piece, the shoe can be kept under circumstances including rainwater pavement friction. The frictional wear testing device can simulate wear situations under more real conditions, so that the performance of a sole can be acquired more really.

The invention discloses a waterproof roll tensile testing device which comprises a rack, an upright, a servo motor, a screw, a linear guide rail, a feeding nut, a base, a tensile force sensor, an upper chuck, a lower chuck and a controller. During working, a waterproof material is placed between the upper chuck and the lower chuck to be clamped, the controller controls the servo motor to work, the servo motor drives the feeding nut to upwards move on the linear guide rail through the screw so as to drive the base to slide on a guide rod until the waterproof material is broken, the tensile force sensor detects tension in real time and sends the same to the controller, and the controller displays a calculation result. The waterproof roll tensile testing device is simple in structure, stable in action, free of impact and high in sensitivity, the waterproof material is firm and reliable in mounting, and experiment data are accurate and reliable.

The invention discloses a device and a method for measuring a magnetoconstriction coefficient by using a Doppler polarizer through a sinusoidal modulation multi-beam laser heterodyne method, which belong to the technical field of micrometric displacement detection. By using the device and the method provided by the invention, the problem that the measurement precision of a conventional method for measuring the magnetoconstriction coefficient cannot meet an ultra-precise measurement requirement is solved. The method provided by the invention comprises the following steps: enabling a plane reflecting mirror and a thickness-regardless thin glass plate to be mutually parallel and equal-height, enabling a distance d between the thickness-regardless thin glass plate and the reflecting surface of the plane reflecting mirror to be 20mm, and turning on a driving power supply of a polarizer, so that the polarizer begins carrying out simple harmonic vibration; and collecting an electric signal output by a photoelectric detector through a signal processing system, processing a collected signal, obtaining a distance variable quantity between the plane reflecting mirror and the thickness-regardless thin glass plate, and obtaining the magnetoconstriction coefficient of an iron-nickel alloy sample to be measured according to the distance variable quantity. The device and the method provided by the invention are applicable to the measurement of the magnetoconstriction coefficient of a ferromagnetic body.

The invention belongs to the technical field of food flavor quality detection, and discloses a method and system for detecting evaluation information of the food flavor quality. The corresponding relation between the sample baking time and the sensory evaluation score is determined through hierarchical cluster analysis, aroma substances in samples are separated and extracted through a headspace extraction method, the aroma substances in each set of samples are analyzed through a gas-phase mass spectrum and chromatography combination technique, smell information of the samples is collected through a gas-phase chromatography-mass spectrum combination instrument, principal component analysis (PCA) is conducted by combining PCA so as to observe the difference of volatile matter in the five samples, and the corresponding relation between the smell information and the baking time is established. The corresponding relation between the sample smell information and the sensory evaluation scoreis determined through partial least squares, correlation between the smell information and an aroma quality evaluation result is determined through a multivariate analysis method, and thus the reference is provided for establishing a unified evaluation method and standard.