Used for simulating the vacuum, cold black, and solar radiation environment of space in ground environments for aerospace products, conducting thermal vacuum tests and thermal balance tests. It can also simulate the cold and hot environment of vacuum space, conduct thermal vacuum tests on test specimens, and effectively control, monitor, and record the temperature of test specimens in vacuum space, providing necessary conditions for the research of related aerospace products. During simulation experiments, the specimens are often in working condition and their working parameters and environmental parameters are measured. (Simulation of a negative pressure environment of 10E3Pa in a micro wind thermal vacuum test chamber)