During their life cycle in space, satellites are exposed to various thermal requirements in addition to high vacuum. These environmental conditions can be simulated in IABG's thermal vacuum chambers. High vacuum is achieved using various pumping systems, while high and low temperatures are generated using nitrogen or helium via the thermal walls of the chambers.
Thermal functional testing of both complete systems and individual control system components in high vacuum under varying temperatures.
Testing at thermal equilibrium in a vacuum at different temperature levels to validate thermal model calculations.
Test in which the test specimen is subjected to a certain number of temperature cycles with specified minimum and maximum temperatures as well as defined holding times and temperature ramps.
Test in which the test specimen is exposed to a high temperature in a vacuum for a defined period of time. This removes outgassing products, such as silicones, which are present in the structure or adhesives due to the manufacturing process.
The thermal walls of the test chambers are typically cooled using liquid or gaseous nitrogen, achieving minimum temperatures of approximately 90 Kelvin, sufficient for most test campaigns. However, for specific requirements, such as cooled optical instruments, significantly lower temperatures are necessary. IABG operates a specialized test chamber equipped with a helium cooling system, allowing temperatures as low as 10 Kelvin (near absolute zero) to be reached.
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