37results about How to "Reduce test energy consumption" patented technology

A t device and method for electric injection annealing of crystalline silicon photovoltaic solar cell the test device comprises a dark box, sample test bench, Temperature control device, A power supply device and an image acquisition device, the aforementioned sample test bench, Temperature control device, A power supply device and an image acquisition device are arranged in the dark box, The sample test bench is used for placing solar cell sheets, the temperature control device is used for controlling the temperature of the solar cell sheets, the power supply device is used for supplying current to the solar cell sheets, and the image acquisition device is used for collecting electroluminescence images of the solar cell sheets under different temperature and current conditions. The devicecan provide stable temperature and current, and obtain electroluminescence images of solar cells under different temperature and current conditions. The device can conveniently view the whole processof excitation defects and passivation defects of solar cells, and has simple structure and convenient testing.

The invention discloses a battery capacity detection method comprising the following steps of: obtaining a charged open-circuit voltage OCV-state of charge SOC curve, and a direct-current inner resistance Romega; and calculating an SOC changing rate and the like. The method disclosed by the invention is mainly used for a battery and is particularly suitable for a capacity test of a power battery pack. Compared with the traditional full-charge and full-discharge test method, the test method disclosed by the invention realizes the aims of shortening battery capacity time and reducing test energy consumption.

The invention relates to a reciprocating displacement type fatigue testing machine. The reciprocating displacement type fatigue testing machine comprises a tested steel beam, an acting wheel, a connecting bar, a double-acting oil cylinder, an oil cylinder support, a lifting rod, a load gravity block, a working platform and a hydraulic pump, wherein the acting wheel is connected with one side of the double-acting oil cylinder by the connecting bar; the double-acting oil cylinder is connected with the oil cylinder support and connected with the hydraulic pump; the hydraulic pump is connected with a control system; one end of the lifting rod is connected with a wheel axle of the acting wheel; the other end of the lifting rod is connected with the load gravity block; the acting wheel is positioned above the tested steel beam; and the load gravity block is inserted into a spatial position in the working platform. By using the reciprocating displacement type fatigue testing machine the restriction that the traditional fatigue testing machine only can test the positive stress variation induced fatigue is overcome and the bearing capability of the fatigue caused by bent member web shear stress inversion can be detected. The reciprocating displacement type fatigue testing machine provided by the invention has the following advantages that: the position of the acting force moves in a reciprocating way while the size and direction of the acting force is invariable; and the acting force is realized by a lifting rod pressurizing weight and small thrust and low testing energy consumption are required in the double-acting oil cylinder for driving the acting wheel.

The invention belongs to a device for a temperature test. The device for the temperature test comprises a temperature control platform, an intelligent temperature adjuster and a constant temperature circulator, wherein the temperature control platform consists of a cold plate, a thermoelectric cooling component with an upward cold surface and a water jacket from top to bottom; a ceramic heater isadhered to the cold surface in contact with the thermoelectric cooling component; and a temperature measurer is arranged in the cold plate. The device greatly expands the working temperature range byusing a high-power thermoelectric cooler and controls the PTC ceramic heater to perform temperature compensation by using the AI-708P program type intelligent temperature adjuster to realize high-accuracy automatic temperature control; by using the HX-1050 type constant temperature circulator, the device keeps the temperature range of circulating liquid within a range of between -10 and 50 DEG C;and thus the device meets the requirement on heat dissipation, reduces the energy consumption of the test, lowers the using cost and is suitable for tests such as high temperature storage, low temperature storage, high and low temperature circulation, high temperature aging and the like of low-power photoelectric products such as passive optical fiber devices, watt-level power consumption photoelectric devices, integrated components and the like.

The invention relates to a high-temperature high-pressure part damage and failure process experimental device comprising a water injection device (3), a steam generation device (1), and a test piece heating and testing device (2) sequentially connected by using pipes. The device also comprises a pressure and temperature adjusting device (4) used for controlling the pressures and temperatures of the devices. The test piece heating and testing device (2) comprises, a covered sealed box with the layers of, from inside to outside, a thermal insulation material layer (202), a steel plate material layer (203), and a refractory layer (204). A loading device (209) is arranged on the box. The loading device is connected to the test piece (210) through a spring (208) penetrating an open hole on the top of the box and extending into the box. A resistor heating wire (206) is arranged in the box. A hole is provided on the bottom of the box. A weight hook (213) penetrates the hole. A weight (214) is suspended below the weight hook (213), and is positioned below the box. With the device provided by the invention, various working conditions of high-temperature high-pressure parts in boiler operation reality can be truly simulated, and the test piece can be subjected to full-process monitoring.

The invention discloses a particle sensor calibration system and a measuring method. A fuel is introduced into an inverse diffusion flame combustor, an upper combustor mouth is communicated with an exhaust pipe, a gas mixture is ignited, and stable soot is produced by combustion of the gas mixture; a compressor is started, and a stable quantity of air is introduced; air input is adjusted through a pressure-regulating valve, and the air is heated by a heater and then enters the exhaust pipe to dilute the soot produced by combustion; air input flow adjusted by the pressure-regulating valve is read by a flowmeter; a temperature sensor outputs the temperature of diluted particles; the soot enters a particle sensor, a current signal is output and then amplified and converted by a circuit board, then a voltage signal is output, an A / D converter is used to acquire a signal value, and a voltage value is read by a computer; a transient smokemeter is started in the moment when the soot enters the particle sensor, and transient soot concentration is measured and output; and the voltage values output by the particle sensor under different soot concentrations are recorded, a calibration curve representing the changes of the voltage values under different soot concentrations is drafted, and accurate particle concentration is obtained.

The invention discloses a rock tensile strength test apparatus capable of applying confining pressure, which can truly restore an environment in which rock is disposed. The rock tensile strength test apparatus comprises a base, wherein the base is connected with a top plate by virtue of a connecting rod; and the base is fixedly provided with a test assembly, the top plate is fixedly provided with a loading oil cylinder, and a loading rod of the loading oil cylinder stretches into the test assembly. By adopting the rock tensile strength test apparatus, the confining pressure, different temperature environments and rock burst can be applied to a test sample, an underground environmental condition of the rock can be truly simulated, so that an underground stress condition of the rock and the variation of tensile strength can be more precisely researched, and instructions and references can be provided for the subsequent design, construction, teaching, research and the like. By adopting the rock tensile strength test apparatus, the test sample can be rapidly centered, and a breaking time and pressure at the breaking time of the test sample can be discovered in time by virtue of a displacement of the loading rod. By virtue of a cooling assembly, heat of the loading rod and a lower supporting rod can be prevented from damaging the test apparatus.

The invention relates to the field of testing equipment, and discloses a power battery testing equipment and a testing method. The power battery testing equipment includes a test air duct and a refrigeration system. The test air duct is used to simulate the test environment of the power battery to be tested. The test air duct includes a first circulating air duct and a second air circulation duct with independent air outlets and a common return air outlet. The cooling system includes a first evaporator and a second evaporator arranged in parallel, the first evaporator is used to exchange heat with the first circulating air channel, and the second evaporator is used to exchange heat with the second circulating air channel. When the temperature of the air outlet of the first circulating air duct and the second circulating air duct are inconsistent, adjust the heat exchange of the first evaporator and the second evaporator to make the temperature of the air outlet of the first circulating air duct and the second circulating air duct consistent . The invention can ensure the consistency of the provided temperature field, ensure the consistency of each product test, effectively reduce the test energy consumption, and improve the accuracy and test efficiency of the test result of the power battery.

The invention relates to the technical field of valve static pressure life testing, in particular to an automatic valve static pressure life testing device based on gasification boosting, which can be applied to control valves such as ball valves, gate valves, butterfly valves, and globe valves. The device includes a control system, Gas source pressurization system, loading system and drive system. The present invention uses the gas source pressurization system to provide high-pressure gas, thereby simulating the opening and closing of the tested valve under different medium pressure conditions, and the detection component monitors the operation of the tested valve in real time. Position, upstream and downstream pressure information, etc., can evaluate the opening and closing cycle state and sealing performance of the tested valve, improve the accuracy of the test, and the loading system controls the loading and unloading of high-pressure gas passing through the tested valve, so as to realize According to the technical requirements of the static pressure life test standard of the control valve, the static pressure life test of the valve can be automatically completed, and the high-pressure gas consumption during the test can be reduced, which has the advantage of being green and low cost.

The invention discloses a real-time rapid construction method based on transient test data for an efficiency model of a plate-fin heat exchanger. The method comprises: a plurality of flow levels are selected as working condition points required to be measured within the normal working range of the heat exchanger; in each test process, the steady-state value is identified and predicted in real timeaccording to the measured outlet temperature change data, so that the steady-state heat exchange efficiency of the current working condition can be obtained in advance without waiting for the outlettemperature to reach a steady state. Through continuous tests, the steady-state heat exchanger efficiency under each test working condition point can be obtained, and then a heat exchanger steady-state heat exchange efficiency model is constructed by taking mass flow on two sides as independent variables. The method solves the problems of long time consumption and high energy consumption for obtaining the heat exchanger efficiency model by using the steady-state test, can greatly shorten the test period, and improves the test efficiency.

The invention discloses a test system and a configuration method for aircraft climate and environment testing, belonging to the technical field of aircraft testing. The test system for aircraft climate and environment testing includes: a large environment cabin and a small environment cabin arranged side by side in front and behind, located in the large environment cabin The first annex on one side and the second annex on the other side of the large environmental chamber, the third annex on one side of the small environmental chamber, the power assembly behind the small environmental chamber, the inner walls of the large and small environmental chambers and the There are interlayers between the outer walls, an isolation door is provided at the junction of the large and small environmental chambers, a water collection tank is provided under the ground of the large and small environmental chambers, and a drainage assembly is arranged inside the water collection tank. The test system of the aircraft climate environment test of the present invention fully considers the functional requirements, building structure, environmental simulation system, power supply and other factors of the super-large climate environment laboratory, iteratively optimizes the layout of the laboratory, and forms a super-large comprehensive The overall layout of the climate-like environment laboratory.