5 results about "Solar simulator" patented technology

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%.

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.

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 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 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.