721 results about "Test room" patented technology

Provided are an apparatus and a method for measuring gas transmission rates and nanoleaks of deformable and brittle materials. The apparatus includes a test chamber having an upper and lower diffusion cells that when closed form a chamber wall seal, a gas inlet and a gas outlet in fluid communication with the lower diffusion cell, the upper diffusion cell being fluidly connected to a high-vacuum mass spectrometer. The method of measuring gas transmission rates and nanoleaks includes placing a sealed package containing the test gas in the lower diffusion cell, closing the upper and lower diffusion cells, flushing the lower diffusion cell with a source of a second gas other than the test gas, closing off the source of the second gas; and measuring the leak rate of the sealed package.

The invention provides a test method for field programmable gate array single particle effect, relating to an integrated circuit technology. The invention comprises the following steps: 1) the package of FPGA is removed, and FPGA is arranged on a test circuit board; 2) FPGA is configured, and then SRAM data are read back and recorded; 3) the test circuit board is arranged in a test room and a particle source emits single particles to bombard FPGA; 4) SRAM data are read back and recorded; 5) data of steps 2) and 4) are compared, and reversed digits of SRAM are determined; 6) when the reversal times reach a preset value or after the period of time without reversal reaches a preset time value, the particle source is changed, FPGA is electrified again, the FPGA is confirmed to return to the initial state, and then steps 3) and 5) are repeated; 7) the data are processed: the reversal section of the LET value is calculated and a reversal curve is generated. The method can precisely test the impact of the single particle effect and eliminate external interferences, thus ensuring the correction and reliability of the test results.

This invention discloses a laser speckle tyre lossless detector. The detector is located in the test room of the vacuum device and is connected with a vertical and level and rotation laser speckle probes through test moving structure. Under the test prove there is tyre automatic position device to supporting and positioning and there is door in the sidewall of the test room. This invention also provides a method for lossless test and the laser speckle tyre loss detector can test the inner defection of the products and can be used in quality test of space flight field.

The invention provides a multifunctional bearing test device, which comprises a rotation driving system unit, a loading system unit, a high and low temperature environment box, a lubrication cooling system unit and a measurement control system unit, and is characterized in that the loading system unit can control the loading force and the loading waveform of loading heads on an axial loading unit and a radial loading unit, and the high and low temperature environment box can realistically simulate a real temperature environment of a test. The multifunctional bearing test device can simulate service conditions of a test bearing in a test room, realizes performance testing for the test bearing under conditions of given rotating speed, lubrication, temperature, axial load, radial load and circumferential unbalanced impact load and the like, and analyzes influences imposed on the bearing performance by misalignment, poor lubrication, uneven stress and the like through data such as vibration acceleration, abrasive dust amount and the like acquired in the testing process, thereby being capable of more authentically simulating actual conditions of a rolling bearing when being subjected to the radial load, the axial load and the like, and being more reliable, systematic and scientific in service life and reliability evaluation for the test bearing.

The invention relates to a method for testing a mechanical property of a braze welding connector. The method comprises the following steps: (1) preparing a T-shaped tensile sample; (2) preparing test equipment including an electronic universal testing machine, a clamp, a heating furnace, a temperature control system and a control system; (3) installing the T-shaped tensile sample; (4) testing the mechanical property of a T-shaped tensile sample connector in an environment of the room temperature; (5) testing the mechanical property of the T-shaped tensile sample connector in a high-temperature environment; (6) representing the mechanical property of the connector: integrating a load-displacement curve, dividing the area of a fractured surface to obtain fracture total energy, calculating interface fracture energy (refer to the specification) and a maximal load (refer to the specification) when in fracturing, wherein the interface fracture energy and the maximal load are main parameters representing the mechanical property of the tensile sample. The T-shaped connector sample conforming to the real structure stress situation is provided; the problem that the method for testing the mechanical property of the braze soldering plate-fin structure is in lack and the rest result is incorrect can be solved; the test method is simple, data can be automatically acquired, error in manual operation can be avoided, more efficiency in test can be achieved, and the test result is more accurate.

The invention relates to a multi-extreme-working-condition erosion test device applicable to multi-field coupling condition. The multi-extreme-working-condition erosion test device comprises a high-pressure gas storage tank, a sealing liquid storage tank, a mixing device, an erosion fluid preheating pipe, an erosion test room and a test platform, wherein the test platform is arranged in the erosion room; a sample to be tested is arranged on the test platform; the erosion fluid preheating pipe extends into the erosion test room and is connected with an erosion test spraying pipe; an outlet of the erosion test spraying pipe is aligned to the sample to be tested, and an inlet of the erosion test spraying pipe is connected with the mixing device; the high-pressure gas storage tank and the sealing liquid storage tank are respectively connected with the mixing device; the high-pressure gas storage tank is provided with a gas feeding system; and the sealing liquid storage tank is provided with a supercharging system. The multi-extreme-working-condition erosion test device has the advantages that multiple erosion experiment accessories are integrated and coupled scientifically, so that the effective simulation on multiple extreme conditions in the industry is realized under the laboratory condition, the test result of the experiment is more real and reliable, and simultaneously, the application and simulation in more industrial fields are realized.

The invention discloses a method for using an electronic nose to detect the freshness of chicken. The invention aims at providing a method which uses the electronic nose to detect the freshness of chicken, has the advantages of rapidity and simpleness, easy use and objective and reliable detection result, and can reduce the impact of storing conditions to the detection result. The method comprises the following steps: a chicken sample to be detected is put into a sealed container and then heated in water bath with thermostatic control; the heated chicken sample is put into a test room, and then smell sent by the sample is detected by a gas sensor array which consists of four gas sensors of different types; the data which is aquired by the gas sensor array is collected and processed; and then the freshness of chicken is judged according to the processing result of the data. The detection method uses an electronic nose which consists of four gas sensors of different types to detect the chicken sample, and has the advantages of objective, accurate, and fast detection result, good repeatability, simple analysis process and small using amount of sensors, and reduces the extraction of eigenvalues.

The invention relates to an engine test rack device, which comprises an iron bottom plate, a rack stop block, a rubber guide wheel, a trolley tray body, a trolley hold-down mechanism, a centering mechanism and supporting legs and the like. A trolley tray can freely move under the pushing of people. A trolley locating guide mechanism and the trolley hold-down mechanism are fixedly installed on the iron bottom plate in an engine test room, and the supporting legs are arranged on the trolley tray. An engine to be tested can be fixed and centered on the engine test rack device in advance and enters into the test room, and then a rack is set up. Compared with traditional methods for setting up racks, by means of the engine test rack device, not only the work efficiency is greatly increased, but also the centering accuracy of parts to be tested can be remarkably improved.

A testing system for a PSU includes a test chamber and a control device. The test chamber includes a first partition with the PSU accommodated therein and a second partition with an electric load accommodated therein. The PSU is electrically connected to the electric load. The control device includes a microcontroller unit (MCU). The MCU is connected to a setting circuit and a temperature sensing circuit. The setting circuit is configured to set one of predetermined parameters. The temperature sensing circuit is capable of sensing temperature in the test chamber. The MCU is capable of automatically controlling a predetermined temperature in the test chamber and presetting a test time for testing the PSU.

The invention discloses a flaw detection and simulated test device and a flaw detection and simulated test system of a steel rail. The device comprises an emulation computer and a signal generation/data acquisition unit, wherein the emulation computer is connected with the signal generation/data acquisition unit; a steel rail flaw pattern is set by adopting fault feature points to simulate the steel rail with faults; when a simulated test is carried out, a locomotive speed signal is set and ultrasonic echo parameter data is sequentially generated according to the steel rail flaw pattern corresponding to a locomotive driving position and is transmitted to the signal generation/data acquisition unit; the signal generation/data acquisition unit is connected with an outer steel rail flaw detection system and is used for outputting the locomotive speed signal to the outer steel rail flaw detection system, an ultrasonic drive signal sent by the steel rail flaw detection system is received, and an ultrasonic echo simulated signal is sent back to the steel rail flaw detection system according to the ultrasonic echo parameter data transmitted by the emulation computer. With the adoption of the flaw detection and simulated test device and the flaw detection and simulated test system, the technical problems that a test room checking manner for the steel rail flaw detection system does not exist, the testing cost is high and the test is easily restricted by the environment in the prior art are solved; the working performance of the detection system can be checked any time and any where.

The invention discloses a test bed for a steering system of an electro-hydraulic servo automobile. The test bed comprises a testing machine main body, an electro-hydraulic servo control system and a power pump station which provides hydraulic power for the testing machine main body, wherein the testing machine main body comprises a steering torque loading device, a steering device to be detected, a steering torque output device and an axle fixed mount; and both the steering torque loading device and the steering torque output device are provided with a hydraulic servo driving device and a parameter detection device which are in signal connection with the electro-hydraulic servo control system. The test bed has the beneficial effects that: the entire steering system of the automobile can be comprehensively tested in a test room, various test conditions of a real automobile test are completely imitated, the time and labor are saved, and the detection is comprehensive and accurate.

The invention discloses a test room for evaluating the comfort of an air conditioner. The test room comprises a dwelling and an outdoor environmental chamber surrounding the dwelling. The dwelling is of a civil building structure of a reinforced concrete frame and brick walls. A temperature field measurement matrix, a humidity field measurement matrix, an airflow field measurement matrix, a heating unit and a humidity emitter are arranged in the indoor space of the dwelling. The outdoor environmental chamber is of a heat preservation refrigeration house structure and is provided with a refrigerating unit and an air conditioning unit which are used for creating various outdoor temperature-humidity climatic environments. After sensing signal data of temperature, humidity and airflow are collected through a computer, a three-dimensional or two-dimensional color data distribution cloud picture of the temperature, the humidity and the airflow of the room is generated and is used for analyzing comfort parameters of an air conditioner environment created by the air conditioner.

The invention discloses a fuel tank bracket assembly multi-axis loading test stand and an endurance test method. The test stand comprises loading devices fixed on an iron floor and a fuel tank bracketassembly connection frame. The connection frame connects the loading devices and a fuel tank bracket assembly into a multi-axis loading system. The loading devices comprise one longitudinal loading device, three vertical loading devices and two side loading devices. Through coordinated movement of the six loading devices, space six-degree-of-freedom motion of the fuel tank bracket assembly is realized. Compared with the prior art, the method, with a test field reinforced road load spectrum signal being a target, and through a simulative iteration mode, can realize true reappearance of space six-degree-of-freedom vibration state and stress state of the fuel tank bracket assembly under a real vehicle working condition in a test room, and further realizes endurance test and test authentication of the fuel tank bracket assembly. In the product development process, test cycle can be reduced greatly, weak spots can be found earlier, and research and development cost is reduced.

The invention provides a moving measurement apparatus based on a linear module. The apparatus provided in the invention comprises two major parts: a moving measurement rack and a control system. A substrate of the moving measurement rack is connected with a linear guide rail; a decelerator is connected with a servo motor; the servo motor is connected with the linear guide rail and with servo drivers of the control system; a tow chain of crawler type is fixed on a frame; a support component is constructed by the substrate and the linear module; a raster ruler and a limit switch are connected with a signal interface board of the control system. Besides, monitoring equipment is fixed on a support; an air switch of the control system is connected with breakers; the breakers are connected with contactors; the contactors are connected with filters; relays and a motion controller are connected with a computer through an Ethernet and connected with a manual controller through an RS232 interface; and simultaneously, the relays and the motion controller are connected with servo drivers, the raster ruler and the limit switch through I/O interfaces. The moving measurement apparatus based on a linear module provided in the invention can be used for automatic and accurate positioning of monitoring equipment of a wind tunnel test room or a special trial site.

The invention provides a remote court trial implementation method and device. A court trial applet is added to a common communication client of a user; the party enters the court trial application interface of the court trial applet through the communication client in the mobile phone, namely the party client. The method comprises the following steps of: creating identification information of a target court trial room based on a court trial request sent by a legal officer client; and accessing the target court trial room in the reserved court trial time, meanwhile, the legal officer initiatesan access request to the service server on the computer of the court through the court trial software; access target test room, the service server sends the current room information of the target court trial room to each client accessing the target court trial room. Therefore, data interaction between the member clients is achieved through the communication server, the remote video court trial iscompleted, a party does not need to specify a court and install court trial software of the same model, the litigation cost of the party is reduced, the complexity of the party participating in the litigation activity is simplified, and the remote court trial professional degree is improved.

The invention discloses a high-throughput microfluidic device for organic pesticide detection, and a water sample detection method of the same, which relate to the technical field of organic pesticide detection and analysis. The high-throughput microfluidic device comprises a water sampling module, an organic pesticide microfluidic module and a Raman spectrum analysis module, wherein the water sampling module acquires a water sample and conveys the water sample to the organic pesticide microfluidic module, the water sample is fully collided and organically combined with the metal nano particles, and the mixture is further conveyed to the Raman spectrum analysis module for data analysis. In the device and the method provided by the invention, the microfluidic technology and the SERS (Surface Enhanced Raman Scattering) technology are combined, by the control on the flow of the to-be-tested water sample, the nano particles and the buffer solution, Raman spectrum detection on micro water sample can be realized, the environment requirement of the water sample detection is lowered, the detection speed is fast, and the accuracy is high. Meanwhile, the microfluidic device provided by the invention is compact in structure, besides being arranged in a test room, the microfluidic device also can be arranged in other work environment.

The invention relates to a sandstorm environment simulation test table which comprises an envelop enclosure, wherein a sandstorm simulation system, a test room and a control system are arranged inside the envelop enclosure, the sandstorm simulation system is composed of a circulation air duct, a blower, a sandbox and a dust remover, the test room is provided with at least one air inlet and at least one air outlet, a tested part is placed inside the test room, the blower, the sandbox and the dust remover are communicated with the circulation air duct in sequence, and the sandstorm simulation system and the test room are connected with the control system. The sandstorm environment simulation test table is capable of simulating a high-speed sand blowing environment under the condition of desert climate, and providing good experimental conditions for testing resistance to the desert climatic environment of all related parts, equipment and devices in production of a passenger train.

The invention provides a simulated climate chamber of an underground coal mine thermal environment and a test method. The simulated climate chamber is provided with a control cabinet, a first computer, a temperature-humidity system, a fresh air system, a simulated air system, a human body micro-climate acquisition system, an alarm system, and a human body physiological index test system. The simulated climate chamber comprises an experiment preparation room, a test room, and an equipment room. The test method of the simulated climate chamber consists of four steps. Through the simulated climate chamber, personal protection cooling suits for mine and protective properties of the cooling suits can be subjectively and objectively evaluated. Through the simulated climate chamber, the underground coal mine thermal and humid environment can be relatively really simulated; comparatively accurate data is provided; and environment uncontrollability during a live environment test is avoided. The simulated climate chamber and the test method can meet practical operational needs.

The invention belongs to the technical field of metering and testing of aero-engine test beds, and relates to a method and a system for measuring air flow pressure in aero-engine test run. The method for measuring the air flow pressure in a test room comprises the following steps: acquiring the air flow pressure of a position to be measured by using a pressure probe; accessing the measuring end of a pressure scanning valve through an air guide tube; connecting the reference end of the pressure scanning valve to the output end of a pressure controller; regulating the output pressure of the pressure controller, wherein the pressure is determined in such a manner that the pressure scanning valve works in an optimal measuring range. The method and the system have the advantages that the problem concerned with the measurement of air flow pressure in an existing engine test room can be solved, the reference end pressure of the pressure scanning valve is kept constant, measured data are stable, high repeatability is realized, periodic fluctuation is prevented, and the pressure scanning valve can work in the optimal measuring range.

The invention discloses a method and a device for calibrating a dynamic response characteristic of sonde humidity by a double flow method. The method includes that a sonde test chamber with given relative humidity is arranged, a humidity detected value of the sonde is real-timely received and recorded, gases with the given relative humidity are formed by uniformly mixing one way of a known amount of dry nitrogen and another way of a known amount of saturated humidity nitrogen, the nitrogen and the test chamber, both with the given relative humidity, have same environment temperatures which can simulate a lift-off state of the sonde, and the test chamber has a pressure environment which can simulate a high lift-off state of the sonde. The device comprises a control system, a water bath tank, the test chamber, an electrical control adjusting valve, a vacuum pump, a first gas inlet pipeline, a second gas inlet pipeline and the like, and the first gas inlet pipeline and the second gas inlet pipeline are respectively used for providing dry nitrogen and saturated humidity nitrogen which are provided with set amount. The method and the device for calibrating the dynamic response characteristic of the sonde humidity by the double flow method have the advantages that the calibration by the calibration method is accurate, the manufacturing is simple, the calibration efficiency is high, the calibration device is simple in structure, a reliable simulated lift-off environment can be provided for the sonde, and the accurate calibration can be guaranteed.

The invention provides an adjustable impact test device and a method. According to the device, an upper central rolling shaft is fixed on a reaction wall of a test room, four groups of round steel rods with thread at two ends serve as rigid connection rods, abutting of the connection rods is realized via abutting nuts, bottom connection rods fix a circular disk pendulum bob on the connection rods via insertion plates at the end parts, a set of pendulum bob system is formed together with the upper rolling shaft, and the connection rods can be used for conveniently adjust a position of the pendulum bob on a different impact point. A clamp is arranged at a pendulum bob impact point for mounting a pressure sensor, a lifting hole and mounting holes are reserved in the middle of the upper part of the pendulum bob, a loading hole is reserved 45 degrees obliquely, and a steel wire rope passes through the loading hole and sleeves an X-shaped sliding hook. A first hand chain hoist is used for adjusting the pendulum bob, the sliding hook is used for fixing the pendulum bob at an initial height, a second hand chain hoist is used for pulling the sliding hook to release the pendulum bob, gravity potential energy of the pendulum bob is converted to kinetic energy, a specimen is impacted, and through changing the initial height of the pendulum bob and the pendulum bob of different masses, different impact speeds and energy can be conveniently and quickly provided.

A sensor apparatus is disclosed that includes a testing chamber or testing chamber arrays configured to receive a sample of oil to be tested. A first embedded heater is coupled to the testing chamber or testing chamber arrays and configured to supply heat to the sample. An oxygen flux chamber is coupled to the testing chamber or testing chamber arrays and configured to provide a substantially stable oxygen flux to the testing chamber. A control module is coupled to the testing chamber, the first embedded heater, and the oxygen flux chamber. The control module is configured to monitor the temperature of the sample, direct the first embedded heater to supply heat to the sample, direct the oxygen flux chamber to provide oxygen flux to the testing chamber, measure an oxygen induction time (OIT), and evaluate the oxidation stability of the sample based on the OIT. A method for thermal analysis of oil oxidation stability is also disclosed.