394results about How to "The experimental data is accurate" patented technology

A mouse's auditognosis and vision memory model and its intelligent behavior detection system are disclosed. A circular dark box type labyrinth is used as the behavior data acquiring unit. The mouse to be tested passes through a tubular channel with adjustable one-way gates along a pointed path and closed loop for performing the cyclic training. The signals about the active movement and passive movement caused by electric shock are acquired and processed by the data processing control unit. Said signals are transmitted via PCI bus to the Access database in control system, and then processed by the statistical software package, so controlling and monitoring the behavior of mouse at any time.

The invention relates to a system and a method for quickly building a physical model. The system comprises a lifting column array and a terrain information acquisition device, wherein the lifting column array and the terrain information acquisition device are electrically connected with a computer control sub-system; the lifting column array consists of lifting columns which are horizontally and longitudinally arrayed in a dense mode on the horizontal plane and a model lower cushion surface which covers the lifting columns; the computer control sub-system comprises a terrain database, a scale conversion unit, a physical model chassis height computation unit, a terrain information checking and visual display unit and a lifting column array control unit. The lifting columns which are densely arrayed are used, and the digital terrain information is combined with the lifting columns, so that accurate positions and accurate heights of the terrain elements are quickly determined; the physical model in an simulation test of hydrology and water resources and terrain evolution is economically and quickly built; and the physical model simulation test which is low in cost and obtains relatively accurate experiment data becomes a feasible option.

The invention discloses a testing system and a testing method for mechanical property of a coal rock test piece. The testing system comprises traditional mechanical property testing, a medical image and rock breaking intelligent monitoring; the traditional mechanical property testing comprises a mechanical index testing system and a hydraulic control continuous loading system; the medical image comprises an X-optical mechanical scanning system and an enhancing image system; the rock breaking intelligent monitoring comprises a sound emitting monitoring system and a thermal infrared monitoring system. The testing method for the mechanical property of the coal rock test piece particularly comprises the following steps that 1 a mechanical test platform and DR / CR image equipment are started; 2 the coal rock test piece is placed on the carrying disc position of a mechanical test machine, and an AE sensor and the test piece are fixed; 3 a contrast agent is injected; 4 one-time DR / CR image scanning is conducted; 5 a mechanical property test is carried out on the coal rock test piece. The obtained image is clear in picture, the analysis carried out on the microscopic scale such as internal microcracks of the rock sample test piece is achieved, and the experimental data are more accurate.

The invention discloses a closed rotary maze device for an animal memory training system. The maze device comprises a round box body and a circuit control system. Key technical points of the maze device are that: the bottom of the box body of the maze device is provided with a turntable driven by a motor; the motor is arranged on a central cylinder, and an output shaft of the motor is in fastenedwith the turntable along the axial direction of the central cylinder; the turntable rotates around the central cylinder under the driving of the motor; the periphery of the lower part of a frame of the box body is provided with a plurality of pulleys for supporting the turntable; and a sieve-shaped supporting net is arranged above the turntable. The maze device overcomes the defect of the lateralization in the detection of the conventional maze devices such as a Y-maze and a T-maze. In addition, a device driven by gradient voltage is removed; the maze device effectively prevents animals from finishing experiments by means of smell, and respective disadvantages of a Morris water maze, the Y-maze and a drought maze are weighted; the starlight detection can be performed through program control according to the nocturnal habits of the experimental animals; and the maze device can ensure that the experimental animals are subjected to sensory stimulation in real environment, which is more favorable for acquisition of experimental data.

The ball mill consists of main unit and peripheral equipment, the main unit consists of frame, elevating table, motor, transmission part, main shaft and ball milling pot, and the peripheral equipmentincludes cooling system, vacuum system, gas supply system, material feeding system, measuring and controlling system and remote controlled microcomputer system. The ball mill has integrated laminated dynamic and static combined sealing, simultaneous vacuum pumping and filling with protective gas of the ball milling pot and the transmission part, no leakage of the material during alloying and no harmful gas invasion. It has end scraper to eliminate powder adhered to the wall of the ball milling pot and spherical transition ends to eliminate powder deposition in the bottom and to raise the ball milling effect. The present invention is suitable for processing nano material.

The invention discloses a seepage experiment system for gas-containing coal under the action of an impact load. The system comprises a coal sample fixing device, an impact load applying device as well as a high-pressure gas source device, an axial pressure loading device, a confining pressure loading device, a vacuumizing device and a metering and data acquisition device connected with the coal sample fixing device, wherein the impact load applying device is a split Hopkinson pressure bar device. The split Hopkinson pressure bar device is adopted to apply the impact load for simulating rock burst, three-dimensional loaded conditions of coal-rock masses in coal mine can be simulated by applying different axial stresses and radial stresses, and seepage experiment of a coal sample in a three-dimensional stress state under the action of the impact load is successfully carried out, so that the system has relatively important meaning in both theory and practice.

The invention relates to the technical field of pressure and temperature measuring of an oil membrane, in particularly to a real-time measuring device and method capable of measuring dynamic oil membrane pressure distribution and temperature of tilting-pad sliding bearingd. The real-time measuring device comprises a motor, a transmission wheel, a spindle, a key phase wheel, a turntable, a bearing base, a base and an oil supplying device. A plurality of pressure sensors and temperature sensors and at least two tilting-pad sliding bearings are manufactured during measuring, the pressure sensors and the temperature sensors are used for converting oil membrane pressure and temperature into electrical signals and outputting the electrical signals, and by combining the parabola theory of oil membrane force, the discrete pressure signals output by the pressure sensor are interpolated into oil membrane pressure distribution on a whole bearing bush, and the circumferential temperature distribution of different points of the shaft bush can be obtained. The real-time measuring device and method have the advantages of being capable of accurately and reliably measuring distribution of the oil membrane pressure and the temperature so as to provide accurate experiment data for the following oil membrane force, oil membrane dynamic characteristics and non-linear correlational reaches.

The invention discloses a system for calibrating the leak rates of vacuum leak holes of different leak indication gases. The system comprises a helium mass spectrum leak detector, a standard container, an argon source, a vacuum leak hole to be calibrated, a leak indication gas source, a constant volume chamber, a vortex molecular pump and a turbine mechanical pump; the vortex molecular pump and the turbine mechanical pump are connected with the constant volume chamber and the standard container by pipelines in sequence; one end of the vacuum leak hole to be calibrated is connected with the leak indication gas source by a pipeline, the other end is connected between the standard container and the constant volume chamber, and the helium mass spectrum leak detector and the argon source are respectively connected to the connecting pipeline. Besides, the system can obtain a conversion relation between leak rates when different leak indication gas media are quickly measured using the helium mass spectrum leak detector, via the magnitude of the leak rate of the leak hole measured by a constant volume method and in combination with the leak rates, measured by the helium mass spectrum leak detector, of vacuum leak holes of different leak indication gas media. The system is reasonable in design, simple in structure and convenient to operate, and can be used for calibrating the leak rates of vacuum leak holes of different leak indication gases.

The invention discloses fuel cell compressor test equipment, a test method, a coolant flow rate determination method and application, and belongs to the field of new energy automobiles. The fuel cellcompressor test equipment is characterized by comprising an air inlet system, an air compressor, an exhaust system and a cooling system. The air inlet system comprises an air inlet pipeline II, a hotfilm flowmeter I, an air inlet pipeline I, an air filter and an air inlet air conditioner. One end of the air inlet pipeline II is connected with an air inlet of the air compressor, and the other endof the air inlet pipeline II is connected with one end of the hot film flowmeter I. The other end of the hot film flowmeter I is connected with one end of the air inlet pipeline I. The other end of the air inlet pipeline I is connected with one end of the air filter, and the other end of the air filter is connected with the air inlet air conditioner. The hot film flowmeter I is used for detectingand recording the air flow. The invention aims to provide the fuel cell compressor test equipment, the test method, the coolant flow rate determination method and the application, so as to test the performance of the air compressor in the new energy automobiles.

The embodiment of the invention provides a device and method for simulating complex crack sand paving. A complex crack simulation structure is arranged in confining pressure equipment, the confining pressure equipment is filled with water with preset pressure, the complex crack simulation structure contained in the confining pressure equipment is borne with pressure of the surrounding water, and accordingly the influence of ground stress on the fracturing process is simulated. In addition, two transparent flat plates of a crack assembly can slide in a sliding groove formed by a wrapping frame so that relative displacement can be generated, and when liquid is not injected into the crack assembly, a gap between the two flat plates is in a closed state under the pressure of water of the confining pressure equipment. Along with the increasing of the amount of liquid injected into the gap assembly, when the liquid pressure borne by the two flat plates in the crack assembly is larger than the pressure of water in the confining pressure equipment, the gap between the two flat plates is wider and wider, thus, the crack formation process in the actual fracturing process can be simulated, the fracturing process can be simulated more veritably, and obtained test data re more accurate.

The invention provides a device for measuring specific heat ratio of air under different temperatures, which comprises an air storage bottle, a pressure sensor and an air temperature testing sensor which are arranged in the bottle, wherein an air charge part and an air discharge part are fixed on the air storage bottle. The device is characterized in that the device further comprises a temperature display and control device which is arranged around the air storage bottle. The temperature display and control device comprises a heat bath container, an electric heating part, a bath temperature testing sensor and a microcontroller, wherein the electric heating part and the bath temperature testing sensor are fixedly arranged in the heat bath container and are electrically connected with the microcontroller. The invention further provides a method for measuring the specific heat ratio of the air under different temperatures through above device. The device and the method can ensure that the air temperature can be at a precise range, enriches the experimental teaching contents and improves the learning initiatives of the students.

The invention provides a pipetting gun head structure with filter elements. The pipetting gun head structure solves a problem that pollution of one pipetting gun head causes cross infection on a pipetting gun and other pipetting gun heads, and the pipetting gun head structure guarantees accuracy of experimental data. The pipetting gun head structure comprises a pipetting gun head body and is characterized in that the pipetting gun head body is close to two vertically-distributed filter elements which are installed on a connection ring face of the pipetting gun in a filled mode, the two vertically-distributed filter elements comprise an upper filter element structure and a lower filter element structure, a cavity is left between the upper filter element structure and the lower filter element structure, and the upper filter element structure and the lower filter element structure are both formed by assembling a plurality of layers of high-density glass fibers.

A mouse's path training model and its intelligent behavior detection system are disclosed. A circular dark box type labyrinth is used as the behavior data acquiring unit. The mouse to be tested passes through a tubular channel with adjustable one-way gates along a pointed path and closed loop for performing the cyclic training. The signals about the active movement and passive movement caused by electric shock are acquired and processed by the data processing control unit. Said signals are transmitted via PCI bus to the Access database in control system, and then processed by the statistical software package, so controlling and monitoring the behavior of mouse at any time.

The invention provides a visual microflow measuring apparatus which is applicable to an oil recovery percent microcosmic flow experiment. The invention is characterized in that end covers are respectively fixed on the two ends of an external cylinder. The inner part of the external cylinder is fixedly provided with a glass pipe and a circulator bath pipe. The glass pipe is internally provided with a separating section plug. The glass pipe is connected with the centre hole of the end cover by an iron pipe line. The wall of the external cylinder is axially provided with an observation window. The outer wall of the external cylinder is fixedly provided with a scale ruler along the observation window. The invention has the advantages that the microflow can be measured under the condition of high temperature, high pressure and seal; error which is caused by evaporation under an indoor condition is eliminated; and an experiment data is exactly obtained and can be used for quantitative research of a seepage experiment.

The invention provides a testing method used for measuring the water content of iron ore crystal water, which belongs to the field of detection technique and is used for solving the problems that the existing measuring equipments used for measuring the water content of the iron ore crystal water are complex and have high expense. The method of the invention consists of the steps as follows: preparing samples, samples entering the furnace, heating the samples, cooling the samples, and calculating the test results, etc. Based on the characteristic that the crystal water in limonite can be completely decomposed and the little carbonate in limonite is decomposed under the temperature of about 400 DEG C, the content of the iron ore crystal water is calculated according to the difference of the dried ore mass and the mass of the ore after the crystal water is overflowed; the method can utilize nationally specified coke reaction equipment generally used by current iron enterprises to carry out the measurement of crystal water of limonite, sufficiently plays the test functions of the existing equipments, and provides a feasible mean for self-measuring the iron ore crystal water for most iron enterprises without increasing other instruments. By the verification of a plurality of contrast tests, the method of the invention has the advantages of simpleness and feasibility, and exact test data.

The invention provides an experimental system for treating thermal desorption tail gas of organic polluted soil through low temperature plasma. The experimental system comprises a gas carrying device, a thermal desorption tail gas generating device, a heat insulation device, a low temperature plasma treatment device and a tail gas absorbing device, wherein the gas carrying device comprises a first gas carrying route for providing general gas and a second gas carrying route for providing mixed gas, and the mixed gas refers to a mixture of the general gas and steam; the thermal desorption tail gas generating device is used for producing polluted gas; the heat insulation device is used for preventing pollutants in the thermal desorption tail gas from coagulating in pipelines; the low temperature plasma treatment device is used for performing degradation treatment on the pollutants in the thermal desorption tail gas; and the tail gas absorbing device is used for absorbing residual pollutants in the thermal desorption tail gas after degradation treatment. The experimental system disclosed by the invention is simple in structure, convenient and swift to mount and debug, short in technological parameter obtaining period, and low in energy consumption cost.

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.

The invention discloses a cross section water sampler of water supply and drainage equipment, structurally comprising a stirring suction structure, water samplers, a housing and a chassis, wherein thechassis is arranged on a bottom end face of the inner part of the housing, the stirring suction structure is mounted right above the chassis, two or more water samplers are uniformly mounted on and communicated with an outer edge of the stirring suction structure, the stirring suction structure is provided with a travel switch system, closed structures, a rotary structure, a clamping drive structure, a pressing-down structure and a suction structure, the closed structures close passages between the stirring suction structure and the water samplers, and further start the clamping drive structure, so that the travel switch system is completely electrified and the suction structure sucks water in a settling basin, the pressing-down structure lifts to drive rotary vanes to press down and achieves a suppressing effect, the rotary vanes cannot be affected by water flow generated during stirring, and the stability is improved. Stirring and sample suction are integrated, multiple samples aresimultaneously extracted, the experiment efficiency is improved, and accurate experimental data is provided for constructing the basin.

The invention discloses a multi-angle dynamic stiffness experimental device for a tire. The multi-angle dynamic stiffness experimental device comprises a supporting device, a fan-shaped plate, a T-shaped shaft and a stamping device; the supporting device is fixed to the ground or a mounting face, and the fan-shaped plate is arranged at the right end of the supporting device in an angle-adjustablemode; the supporting device is hinged to the T-shaped shaft, and the fan-shaped plate is fixed to the T-shaped shaft; the tire sleeves the T-shaped shaft and is arranged on the inner side of the stamping device; a driving device is arranged at the top of the stamping device, and an actor on the upper part of the stamping device removably abuts against the top surface of the tire; and the lower part of the stamping device is slidably connected with the ground or the mounting face, and a measuring device is arranged on the stamping device. The multi-angle dynamic stiffness experimental device for the tire is easy to operate, high in experiment precision, low in cost and capable of testing dynamic stiffness of the tire at multiple angles.

The invention relates to an automatic back pressure control device for an indoor thermal recovery simulation experiment of the petroleum industry and solves the problems that back pressure control is easy to be out of work, the success rate of an experiment is low, experimental data is inaccurate and an experimental operator can be burned or scalded easily in a back pressure control method adopted in the conventional thickened oil thermal recovery simulation experiment of the petroleum industry. The device consists of a double-diaphragm piston type back pressure valve, a temperature regulation and control device and an automatic back pressure tracking system. The automatic back pressure control device has the advantages of increasing the success rate of the experiment and the accuracy of the experimental data, along with safety, reliability and convenience in operation, and is mainly applied to the high-temperature steam driving indoor physical simulation experiment of the petroleum industry.

The invention discloses horizontal foundation bearing capacity testing equipment and a testing method, and belongs to the field of geological in-situ test. The problem of larger error of experimental data measured by conventional equipment is solved. The testing equipment comprises a working plane, a drill rod, a railway upright column, a power chain, a power head and a drilling test device; the drilling testing device comprises a testing device and a tunneling device; the tunneling device is positioned below the testing device; the testing device comprises a steel plate frame, a hydraulic jack group and a pressure sensor; the hydraulic jack group is arranged in the steel plate frame; the pressure sensor is arranged at the end part of the telescopic end of the hydraulic jack group. Radial feeding is conducted by using the minitype hydraulic jack, and the bearing capacity of the horizontal foundation is tested by accurately controlling the journey of the jack, experimental data is acquired, the traditional flat plate experiment and stacking load experiment methods are broken, manpower and material resources required by experiments are greatly reduced, and the acquired experimental data is more accurate.

The invention discloses a penetration type ultrasonic soil body moisture content testing device and method. The testing device comprises an inner sleeve and an outer sleeve that are mounted together in a sleeving manner; wherein one end of the inner sleeve is flush with one end of the outer sleeve, and a tapered steel body is connected to the ends of the inner sleeve and the outer sleeve; at the other end of the inner sleeve and the other end of the outer sleeve, the outer sleeve extends outwards relatively to the inner sleeve, and a hydraulic lift device is mounted in the outward extending part of the outer sleeve; a plurality of slot-shaped notches are formed in the peripheral directions of pipe walls at the superposition parts of the inner sleeve and the outer sleeve, a rail parallel tothe axis of the inner sleeve is arranged in the inner sleeve, and the hydraulic lift device can be used for driving one detection device to move along the rail; the detection device comprises a mounting seat, wherein ultrasonic probes with the quantity being equal to that of the slot-shaped notches in the pipe walls of the inner sleeve and the outer sleeve are arranged in the outer peripheral direction of the mounting seat; a laser ranging probe is arranged in the center of the radial surface of the mounting seat; the laser ranging probe and the ultrasonic probes are connected with a data processing center.

The invention discloses a full-size textured drill sliding bearing experimental device. The experimental device includes a computer, a data acquisition card and a rack, a variable frequency motor, a rotating speed sensor, a coupling, a torque sensor, a main shaft box, a shaft sleeve clamp, a lubricating grease collecting box, a radial loading mechanism, a hydraulic cylinder and an oil pump, a force sensor is arranged on the radial loading mechanism, a rotating shaft of the main shaft box is connected with a sliding bearing sample and is provided with a tightening nut, a lubricating grease supply device is arranged on the main shaft box, and a heating ring and a platinum resistor temperature sensor are arranged on the shaft sleeve clamp. The invention also discloses a full-size textured drill sliding bearing experimental measurement method. The full-size textured drill sliding bearing experimental device and experimental measurement method have the beneficial effect that influence of surface texture on frictional wear of the sliding bearing under different working conditions can be easily and rapidly analyzed, thereby obtaining optimal surface texture of the sliding bearing under the corresponding different working conditions, and increasing the service life of the sliding bearing.

The invention discloses a testing platform for spherical mobile robot, comprising a base, wherein a base bearing seat is fixed on a central position; a base frame on an upper side of the base that is a semi-square tri-edge frame. The central positions of the bottom horizontal frame are connected to the base bearing seat of the base adopting a bearing bushing by a base plate driving shaft driven by a first motor and; an outer frame, the central positions of two vertical frames are connected to a head end of two corresponding vertical frame by a rotary connection piece driven by a second motor; an inner frame, the central positions of two horizontal frames are connected to the central positions of two corresponding horizontal frames by the rotary connection piece of a third motor; the inner frame is provided with a unit device that fixedly clamps the spherical mobile robot. The spherical mobile robot can be clamped in the inner frame. The spherical state changes along three shaft corners. The rotation of the three shaft corners of the spherical mobile robot can simulate space motion and state change of the spherical mobile robot.

The invention discloses a health examination method for plant seedlings by using spectral analysis and relates to a detecting method for chlorophyll of the plant seedings. A Raman spectrum image detecting platform is utilized for detecting the content of chlorophyll under the stresses of different alkali base solutions. The health examination method has the benefits that no chemical reagent is used, the detecting cost is lowered, and pollution to environment can not be caused; Raman spectrum analysis is adopted, complex treatments to samples are not required, the effect of zero-damage identification can be achieved, and experimental data is accurate and quick; by modeling a neural network, influences caused by a large number of different mediums on chlorophyll of the plant seedings can be treated, and the time is saved; experiments can be achieved quickly, accurately, stably and real time, and a great breakthrough is brought to experiment researches to the growth of the plant seedlings.

The invention discloses static characteristic test equipment for a proportional electromagnet. The equipment comprises a servo motor, a ball screw, a displacement sensor, a force sensor, a control panel and a computer. The proportional electromagnet is placed on a testing fixed platform, the ball screw is driven by the servo motor to keep contact with an armature on the proportional electromagnet all the time, the displacement sensor is used for collecting the axial displacement value of the ball screw and inputting the value to the computer, the electromagnetic force generated by the proportional electromagnet is input to the computer through the force sensor, the control panel can be used for controlling the correctness of data input into the computer, and after the processing of the computer, the curve graph of force and displacement relationship is automatically displayed on a display device.

The invention discloses an online gas-solid dynamics testing method and device. The device includes a mass gas mixing system and more than one gas cylinder connected to the mass gas mixing system. The mass gas mixing system communicates with an air intake valve The preheating vacuum furnace is connected. The preheating vacuum furnace is connected to the reaction vacuum furnace through the insulation pipe and the controllable solenoid valve. The reaction vacuum furnace is connected to the vacuum system through the controllable exhaust valve. There are pressure sensors and temperature sensors in the reaction vacuum furnace. , the controllable solenoid valve, controllable exhaust valve, pressure sensor and temperature sensor are all connected with the control system. The present invention can accurately and efficiently measure the kinetic test results such as the relationship curve between reaction amount and time, the relationship curve between reaction fraction and time, and the relationship between reaction amount and time per unit area in the gas-solid reaction process, providing a theory for industrial production and scientific experiments guide.

The invention discloses an apparatus for testing the propping effect of a solid propping agent in a hydraulic fracturing fluid, and a method thereof. The apparatus comprises a sample slot seat, an X ray detector, a high-pressure water injection pump and a pressure tester. X-ray scanning, medical imaging, hydraulic fracturing and mechanical test are integrated to solve the test problem of the effect of a water-based fracturing fluid solid propping agent used in a shale gas exploitation hydraulic fracturing technology for the first time, especially imaging of the solid propping agent through the medical imaging technology is innovated, and the propping effect of the solid propping agent is assessed through tracking and observing the fluid state of the solid propping agent in a shale core crack and testing the absorption amount of the fracturing fluid backflow rock core to X-ray. The method is provided for the first time, is scientific and reliable, allows obtained experiment data to be accurate, and cannot be substituted by present other technologies.

The invention discloses a dual-channel room-temperature direct measuring instrument and a method for a magnetocaloric effect. The measuring instrument comprises a Dewar tank, a vacuum chamber tube as well as a magnetic field and temperature generator mounted at the lower end of the vacuum chamber tube, wherein a sample rod is arranged in the vacuum chamber tube, a dual-channel sample table for carrying a to-be-measured sample is mounted at the lower end of the sample rod, and the upper end of the sample rod is connected with a sample rod linear guide rail lifting system arranged at the upper end of the vacuum chamber tube through a connecting part; the sample rod linear guide rail lifting system drives the sample rod to move linearly up and down in the vacuum chamber tube so as to change the distance between the to-be-measured sample and the magnetic field and temperature generator. The measuring instrument is simple in structure and convenient to operate and maintain, the complex assembly process in the past is avoided, and the measurement efficiency is improved; parameters required by experiments can be edited and switched at any time according to requirements of the experiments under the control of a control terminal and a linear guide rail controller, the measuring instrument is simpler and quicker to finish the action than an existing instrument adopting computer programming, and the operation difficulty is reduced.