19 results about "Solar simulator" patented technology

The invention discloses a detection method of a perovskite battery. The method comprises the steps of obtaining test task configuration; establishing a communication connection with an execution device; source table test parameters are generated through intelligent parameter adaptation; the source table test parameters are issued to the source table, and a test channel set is configured for the programmable logic controller; the sunlight simulator is controlled to enter target illumination intensity and wait for stability, and the temperature controller is controlled to enter target temperature and wait for stability; a synchronous trigger signal is generated by the programmable logic controller, and a plurality of channels are synchronously activated; controlling the source table to test according to the test mode, obtaining sampling data of each channel, and caching the sampling data; performing time sequence calibration on the sampling data of each channel according to the timestamp of the synchronous trigger signal so as to obtain time-aligned multi-channel sampling data; and generating and outputting a basic performance test result and a deep performance test result through composite performance analysis based on the multi-channel sampling data.

The invention discloses a solar spectrum unmixing and beam combining method based on grating inverse dispersion, relates to the technical field of solar spectrum simulation, and solves the problems of low energy utilization rate, poor spectrum coincidence and difficulty in wide spectrum matching in traditional beam combination. The method comprises the following steps: carrying out discrete sampling on an AM0G / AM1.5 G spectrum, selecting a plurality of narrow-band LEDs as reconstruction units, and solving a weight coefficient by a least square method to realize spectrum unmixing; the light is condensed to a grating through a focusing lens, inverse dispersion beam combination is carried out according to a grating equation, and a divergence angle is corrected to 0.733 degrees / 0.814 degrees through a cylindrical shaping lens; and evaluating the quality through SD, SMSR and light spot overlap ratio. The spectrum matching error is smaller than or equal to 5.89%, the light spot overlap ratio is 95.42%, double spectrums can be switched, and the method is suitable for high-precision spectrum beam combination of the solar simulator.

The application relates to the field of aerospace technology, in particular to a lunar surface plume dust diffusion characteristic ground calibration system and method, which comprises a vacuum chamber, a solar simulator, a test platform, a dust raising device and a measuring device, wherein: the test platform is arranged in the interior of the vacuum chamber; the measuring device is arranged on one side of the interior of the vacuum chamber and comprises a dust raising sensor, a control circuit and an analysis display module; the dust raising sensor is arranged on the test platform through a rotary table and is electrically connected with the analysis display module through the control circuit; the dust raising device is arranged on the test platform in the interior of the vacuum chamber and is used for forming a dust raising area; and the solar simulator is arranged outside the vacuum chamber and is used for simulating a solar light source. The application can realize quantitative measurement of dust raising concentration under different angles and different concentrations, can satisfy calibration of dust raising concentration of all moon exploration missions, and can realize low-cost and high-reliable dust raising concentration calibration ground experiment with a calibration error of less than 15%.

The invention discloses a laboratory sunlight energy-saving illumination management system, belongs to the technical field of energy-saving illumination, and solves the problems that a solar simulator bus is out of control due to bidirectional power conflict, an experiment is failed due to light ripple pollution, and energy conservation is more wasted. Comprising a multi-phase magnetic energy cyclic matrix module which generates a controlled multi-phase alternating current energy field; the rotating field transformer energy transfer device module is used for directionally distributing energy in a multi-phase alternating current energy field to each output channel according to a real-time instruction; the distributed virtual ground bus framework module is used for maintaining the power supply reference potential of each output channel; and the digital pre-distortion compensator module is used for performing nonlinear and memory effect compensation on an input instruction and sending the compensated instruction to the multi-phase magnetic energy cyclic matrix module. According to the invention, the rotating magnetic field is coupled with the distributed wireless energy network to decouple the power flow, the noise is suppressed, the spectrum is independent, the energy is saved, and repeated experiments are avoided.

This invention discloses a coupled verification and optimization method for a cold-start focusing strategy of a high-temperature molten salt receiver. The method includes: measuring the incident heat flux density distribution of a solar simulator under different light source configurations; generating a candidate operating condition set including xenon lamp combinations and timing parameters; performing a cold-start experiment and collecting temperature data in real time, and determining over-temperature protection and thermal balance; constructing a three-dimensional unsteady-state thermo-mechanical coupled numerical model, and verifying the model using benchmark experimental data to achieve coupled verification of experimental data and numerical model; inputting measured heat flux and temperature data into the model to solve the transient temperature field and thermal stress field throughout the cold-start process; extracting the maximum temperature rise rate, circumferential temperature difference peak value, and maximum equivalent thermal stress peak value as evaluation indicators; and comparing and optimizing the target focusing strategy by comparing preset constraints. This invention achieves quantitative evaluation and optimization of the cold-start strategy, improving the safety and heating efficiency of cold starts.

A kind of irradiation attenuation subdivision device for optical fiber type solar simulator is designed, mainly by input optical fiber 41, optical fiber beam expander 42, irradiation energy attenuator 43, optical fiber beam reducer 44 and output optical fiber 45, the light beam path is controlled by the pose adjustment mechanism 423 of beam expander lens, the aperture position adjustment mechanism 433 of diaphragm and the pose adjustment mechanism 443 of beam reducer zoom lens, the irradiation flux is controlled by adjustable aperture diaphragm 432, high-precision continuous subdivision adjustment of irradiance is realized without changing the optical fiber coupling of optical fiber type solar simulator, while not affecting solar collimation angle, irradiation uniformity, irradiation stability, spectral matching degree.

The invention provides cell string detection equipment, and relates to the technical field of solar cell detection equipment. The battery string detection equipment can comprise a rack, a bearing assembly, at least one solar simulator and an IV tester. The bearing assembly is arranged on the rack and used for bearing a battery string. The at least one solar simulator is arranged on one side of the bearing assembly and used for providing a light source. Wherein the shape of the cross section of the light emitted by at least one solar simulator is matched with the shape of the cell string, and the light covers the cell string. The IV tester comprises a probe row in contact with the battery string, and the IV performance of the battery string is detected through the probe row. According to the battery string detection equipment, the performance of the battery string can be monitored, then the tandem connection quality of the battery pieces is monitored, electrical performance grade screening can be carried out on the battery string in advance, and the photoelectric conversion efficiency of a battery assembly is improved.

The utility model relates to a kind of sunlight simulation device and lifting sunlight lamp, comprising: light assembly, including first light source and multiple second light sources, multiple second light sources are arranged along circumference interval, and first light source is located at the central position of multiple second light sources;Light guide plate is attached with light assembly, and light guide plate is fixedly provided with light collecting cylinder, and light collecting cylinder is opened with two ends through light guide hole along axial direction, and first light source is located at one end of light collecting cylinder, and the light of first light source is emitted outward along light guide hole.The utility model is to solve the problem that the simulation effect of traditional simulation device to sunlight is poor and the structure is complex, and the maintenance cost is higher.

The invention discloses a method for screening micro-damage after welding of a gallium arsenide battery. The method comprises the following steps: step 1, deploying a measurement and control device; 2, initializing the measurement and control device; step 3, circuit state switching; step 4, parallel resistance calculation; 5, damage judgment and shunting; according to the method, detection is synchronously carried out in the pressure maintaining stage after electric resistance welding, no extra production procedure needs to be added, and the problems that the system complexity is improved and the production takt is reduced due to electroluminescence detection are solved; the parallel resistance Rsh of the battery can be accurately measured and calculated within milliseconds, whether the battery is qualified or not can be detected after single welding, unqualified products are prevented from entering a subsequent surface mounting process, the problem of labor hour waste caused by a solar simulator scanning IV curve screening mode is solved, invalid labor hour consumption caused by whole-course welding when the battery is damaged at an early stage is thoroughly avoided, and the production efficiency is improved. And the requirements of an automatic production line can be met, the production cost is reduced, the production efficiency is improved, and the current situation of low yield of thinned batteries and flexible batteries is improved.

The invention discloses a surface defect detection device for a solar simulator, relates to the field of solar simulator detection, and solves the problem that an existing detection device needs to disassemble and assemble the solar simulator frequently, the surface defect detection device comprises a device base and a simulator body, a portal frame is installed at the top of the device base, and two single-chip microcomputers are arranged at the bottom of the portal frame; a camera is installed on the outer side of the single-chip microcomputer, a display screen is installed on the top of the portal frame, and two containing plates are arranged on the top of the device base. The simulator further comprises a detection mechanism used for comprehensively detecting the simulator body, the detection mechanism is installed on the top of the device base, and the detection mechanism comprises two limiting plates; through the detection mechanism, the two limiting plates can move upwards and rotate, the limiting plates can turn over the simulator body and make the limiting plates far away from the outer side of the simulator body, and the two cameras can comprehensively shoot the outer side of the simulator body, so that the defect detection efficiency is improved.

The utility model discloses a kind of vehicle HUD test equipment, including first testing device and second testing device, first testing device is used to carry out stray light test to HUD product, second testing device is used to carry out high temperature resistance and strong light resistance test to HUD product;First testing device includes windshield fixing device, arched light source assembly, light source driving device, taking and placing material mechanical hand and test mechanical hand, the end of taking and placing material mechanical hand is equipped with first product clamp, and the product to be tested on first product clamp can be electrically connected with controller;Second testing device includes oven and solar simulator, second product clamp is equipped in oven, and the product to be tested on second product clamp can be electrically connected with controller.The utility model can realize the stray light of HUD product, high temperature resistance and strong light resistance performance test, improve the accuracy of test;Without measuring in car, improve the efficiency of test, reduce the cost of test.

The application discloses a kind of in-situ detection device and method of solar irradiation energy spatial uniformity, it relates to a kind of in-situ detection device and method, belongs to space simulation test technical field.The present application is to solve the problem that existing method can only be carried out in atmospheric environment, cannot realize in-situ detection under vacuum low-temperature environment.The in-situ detection device includes vacuum container, solar simulator, in-situ mechanism, detection probe, motion control system, data collector and terminal software;Solar simulator is installed at the top of vacuum container, in-situ mechanism is arranged at the bottom in vacuum container, detection probe is installed on the detection probe installation plane of in-situ mechanism, motion control system is connected with in-situ mechanism, the computer of terminal software is connected with motion control system, the signal receiving end of data collector is connected with the signal transmitting end of detection probe.The application is used to realize in-situ detection of solar irradiation energy in vacuum low-temperature test cabin.

This invention provides a method for measuring background heat flux based on a solar simulator thermal balance test, comprising: entering a first operating condition with the heat sink turned on and the solar simulator turned off; acquiring the background heat flux of the heat sink; entering a second operating condition with the heat sink turned on and the solar simulator turned on; acquiring the background heat flux of the heat sink, the background heat flux of the temperature rise at the light outlet, and the background heat flux of the temperature rise at the reflector, and determining the sum of the three; entering a third operating condition with the heat sink turned on, the solar simulator turned off, and the heating plate on the back of the reflector turned on, adjusting the temperature of the reflector to be consistent with the reflector temperature in the second operating condition; acquiring the background heat flux of the heat sink and the background heat flux of the temperature rise at the reflector in the third operating condition, and determining the sum of the two; subtracting the sum of the two from the background heat flux of the heat sink to obtain the background heat flux of the temperature rise at the reflector; and subtracting the sum of the three from the sum of the two to obtain the background heat flux of the temperature rise at the light outlet, thereby improving the efficiency of background heat flux measurement.

The invention provides a direct irradiation type high-temperature solar thermochemistry-thermorecoupling reaction device, which is particularly suitable for solid-gas two-phase thermochemistry reaction driven by concentrated solar energy. According to the device, a high-flux solar simulator and a high-precision thermogravimetric reactor are integrally designed, and the simulator adopts a multi-lamp cooperative condensation array and is matched with a liftable integrated bearing platform, so that precise alignment and energy matching of solar illumination simulation and a reaction bed layer are realized; a reactor and a thermogravimetric balance chamber adopt a horizontal split structure, physical connection is realized through an integral quartz weighing support rod and a rigid connection assembly, and an integrated stress compensation structure with a self-adaptive adjustment function is arranged at the root of the support rod, so that internal stress caused by thermal expansion, gravity unbalance loading and airflow disturbance can be absorbed and adjusted; therefore, the stability and the measurement precision of a force conduction path are ensured. According to the device, the interference of high temperature, strong light and airflow on the precise weighing unit is effectively isolated while the dynamic flowing of the reaction atmosphere is maintained, so that the real-time, in-situ and high-precision synchronous measurement of the material mass is realized under the high-temperature dynamic reaction condition; and an integrated thermogravimetric characterization platform is provided for dynamics and mechanism research of a solar thermochemical conversion process.

The utility model discloses a perovskite solar cell test box, which comprises a test frame, a sealed illumination box and a spectrum monitoring module are respectively arranged on the test frame, a solar simulator is arranged in the sealed illumination box, a cell carrying table is arranged below the solar simulator, and a probe of the cell carrying table is connected with a source meter; an activated carbon adsorption box and a lead leakage monitoring box are detachably mounted on the inner wall of the sealed illumination box, an air exhaust hole is formed in the top of the sealed illumination box, a hydrogen inlet hole is formed in the bottom of the sealed illumination box, the hydrogen inlet hole is connected with an air pump arranged below the testing frame, and the air pump is connected with a hydrogen bottle. The device is simple in structure and reasonable in design, and an inert gas protection atmosphere is provided in the sealed illumination box; lead leakage is detected, and sulfur-containing activated carbon is used for removing lead; the spectrum monitoring module is used for monitoring phase change or decomposition of perovskite; and a reliable experiment environment is provided for battery performance testing.

The invention provides a method for measuring the temperature coefficient of a perovskite photovoltaic module, and the method comprises the steps: calibrating the irradiance to 1000 + / -20W / m through a steady-state solar simulator under the conditions that the environment temperature is 23.0 + / -5.0 DEG C and the humidity is less than or equal to 50% RH, fixing the module on a temperature control platform through a heat conduction pad, and monitoring the temperature through a patch type temperature sensor. Stability judgment is carried out before measurement, electrical parameters are sequentially measured from high temperature to low temperature after stability is confirmed, data are tested and recorded through an I-V curve, and temperature coefficients and relative temperature coefficients of short-circuit current (alpha), open-circuit voltage (beta) and maximum power (delta) are calculated through linear fitting of a least square method. The method solves the problems that the perovskite battery needs to be packaged to ensure the measurement stability and the assembly temperature is difficult to accurately monitor, the measurement accuracy is effectively ensured, and the temperature coefficient measurement reliability and the research and development efficiency are improved.

The utility model discloses a kind of HUD high-temperature and strong light resistance test equipment, including machine table and controller, the machine table is equipped with oven, product clamp is equipped in the oven, the product clamp is used to install the HUD product to be tested, HUD product on product clamp can be electrically connected with the controller, the upper end surface of the oven is equipped with transparent profiling glass, the profiling glass is aligned with the product clamp, the upper of the oven is equipped with solar simulator, the light outlet of the solar simulator is located directly above the profiling glass, the solar simulator and oven are electrically connected with the controller respectively.The utility model can test the high-temperature resistance and strong light resistance of HUD product simultaneously, without transfer and multiple clamping product, can improve test efficiency, and further improve the production efficiency of HUD product.

A dodging structure of a solar simulator belongs to the field of solar simulators, and is characterized by comprising a first dodging bin and a second dodging bin which are sequentially connected from top to bottom, the first dodging bin is in a circular truncated cone shape. A light source is arranged at the upper end of the first dodging bin; the lower end of the first dodging bin is provided with a dodging diaphragm; the uniform diaphragm comprises a circular frame body; an inhaul cable is arranged on the circular frame body; and a special-shaped sheet for shading is arranged on the inhaul cable. By improving the prior art, the first dodging bin is designed to be in a circular truncated cone shape, light reflection dead angles formed by the plane and the right-angle edge of the dodging bin of the box body are eliminated, and the light utilization rate is increased by 3%-20% (represented by solar cell incident light power) compared with a cubic structure; the light uniformizing diaphragm adopts a special-shaped sheet to uniformize light, so that the irradiation non-uniformity is less than or equal to 1%; the overall structure is simple, the dodging effect is good, and application and popularization are facilitated.