Aerospace components thermal vacuum system

Vacuum environment simulation In the thermal vacuum test, the first step is to
simulate the vacuum environment of space. When spacecraft operate in space,
there is almost no air around them, meaning they are in a high vacuum state. To
simulate this environment on the ground, a vacuum system is used, including
vacuum pumps, gas condensers, and pressure sensors, etc. The gas inside the
test chamber is evacuated to make the internal pressure approach the vacuum
state. Usually, the vacuum requirement of the thermal vacuum test is better
than 6.5x10^-3 Pa to ensure that the simulated vacuum environment is close
enough to the real space environment.If you need more models about our test
equipment, please reference our ： https://www.chamber-testing.com/
Temperature cycling simulation In space, spacecraft undergo significant
temperature changes because they are exposed to solar radiation and cosmic
darkness. The thermal vacuum test simulates these temperature cycles through
heating systems and cooling systems. The heating system can use resistance
wires, radiation heaters, or high-frequency heaters, etc., by controlling the
current and voltage of the heating elements to regulate the temperature. The
cooling system may use low-temperature media such as liquid ammonia. During the
test, the spacecraft is heated to a high temperature (for example, +65°C) and
cooled to a low temperature (for example, -35°C), and cycles between these
extreme temperatures to test its performance under temperature changes.

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