AAC

Contamination monitoring of materials in vacuum

By |2024-07-23T14:27:39+02:0023. July 2024|Space|

Contamination control is a critical aspect of risk mitigation for contamination sensitive surfaces in satellites. Molecular organic contaminants (MOCs) that are deposited on surfaces like lenses may decrease the performances of instruments. Common monitoring methods that are used in space business include: TQCM monitoring (Thermally stabilised Quartz Crystal Microbalance), RGA (Residual Gas Analysis), witness foils to collect contaminants for ex-situ analysis, infrared reflection-absorption spectroscopy (IRRAS) or X-ray Photo Spectroscopy (XPS).   The issue is … [...]

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Outgassing of materials in vacuum

By |2024-01-30T08:06:36+01:0030. January 2024|Space|

Outgassing of materials in vacuum is often treated neglectfully. Typically, only one side of the equation is considered, such as the loss of oil in a bearing. However, the potentially fatal consequences of oil resublimation onto an optical instrument may be ignored. - There is no one in space to wipe down a lens that has a hazy film of oil on it. As a rule of thumb, warm surfaces are more likely to outgas [...]

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Diversified Excellence: AAC’s Multidisciplinary Approach to Advanced Solutions

By |2024-01-24T12:45:36+01:0024. January 2024|Unkategorisiert|

In the dynamic landscape of advancements, companies often find themselves specializing in narrow scientific and technological domains. At Aerospace & Advanced Composites (AAC), our operational model covers a variety of activities from sliprings for space applications to characterizing cold welding of materials, or from developing coatings for special terrestrial applications to working on structural health monitoring for CFK components. Our team comprises a diverse group of scientists and technicians, each specializing in different fields. While [...]

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The mysteries of slip rings

By |2023-11-20T14:52:05+01:0020. November 2023|Consulting, Energy, Industry, Space|

A slip ring (in electrical engineering terms) is a method of making an electrical connection through a rotating assembly. Slip rings, also called rotary electrical interfaces, rotating electrical connectors, collectors, swivels, or electrical rotary joints, are commonly found in all rotary systems with electrical connections of sensors and receptors. They are a common building block in terrestrial and space applications, e.g. wind turbines, computer tomography scanners, solar arrays in space and many more. Tribological characterization [...]

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Aerospace & Advanced Composites GmbH

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