Nebula Public Library

The knowledge bank of ESA’s R&D programmes

Format: 2023
Format: 2023
Format: 2023

86 results found
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There is a current trend towards using tribology free mechanisms where possible, to avoid complexities such as stick-slip behaviour and noise due to sliding contacts. These trends have led to the ongoing development of promising Large Angle Flexible Pivots, the deflecting behaviour of these pivots presents opportunities to unlock further advances in the area of sensors.

Switzerland

TDE

T715-602MS

CSEM SA. Centre Suisse dElectronique et de Microtechnique SA

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This activity is split in different parts focusing on various aspects of the overall methodology: 1) Models and structural analysis development, fidelity and coupling: Noise source models are the starting point of microvibration analysis. Some sources are well known and modelled (e.g. Reaction wheel) but others still require some development. In particular, cryo-cooler and stepper motors models are often key to microvibration performance but are generally based on black-box models coming from test characterization without a model representation of the physical phenomena.

Switzerland

TDE

T720-503MS

CSEM SA. Centre Suisse dElectronique et de Microtechnique SA

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The proposed system uses concentrated solar energy for the generation of H2, O2 (O2 interesting for Life Support, H2/O2 interesting for Propulsion), electricity and heat from water in forward operation mode (in-sun operations) and allows the production of water, electricity and heat in its backward operation mode (in-dark operations).

Switzerland

TDE

T722-601MM

ALMATECH SA

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Spherene AG

Spherene AG is a swiss software development startup providing technology to seamlessly integrate autonomous design into existing additive manufacturing workflows. Spherene AG is committed to the creation of a sustainable economy which is founded on the local manufacturing of only the objects that are needed. Its key principles are material-efficient 3D printing, upgrading, and repairing, instead of replacing & recycling or disposal.

Switzerland

Discovery

ETD 2020-03-d

Spherene AG

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A number of companies and institutes have been developing carbon fibre composite thin ply technologies primarily for use in the high end composite market associated with certain marine and automotive sporting activities (formula one, Americas cup rigid sails etc.). Thin ply technologies utilise a process to spread tows of fibres to make ultra thin unidirectrional prepreg tapes that allow a reduction in the fibre weight from typically 120-150gsm (grammes per square metre) to around 30gsm using the M55J 6k fibres.

Switzerland

GSTP

G617-127QT

APCO TECHNOLOGIES SA

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This activity concerns execution of regular irradiation test campaigns on EEE components for flight on ESA and European space missions. Up to 240 hours per year of beam time is available free of charge on a priority basis for ESA. Additionally, a minimum of 500 hours per year is available for ESA sub-contractors, research institutes and other interested users at preferential hourly rates. The agency provides the facility with a detailed work programme of the test campaigns.

Switzerland

TDE

T723-F07QE

PAUL SCHERRER INSTITUT (PSI)

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Glass cells are typically used in Frequency Standard, both as reference cell, in the lamps for atomic pumping and as dissociator bulbs.When used in a lamp (RAFS or Mercury ion trap), the cell must be sufficiently resilient for avoiding limitations in the lifetime due to diffusion of material (i.e. Rubidium or Mercury) inside the bulb walls, given the combination of dissociation mechanisms and high temperatures.

Switzerland

TDE

T606-502ET

OROLIA SWITZERLAND SA

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Optical atomic clocks are based on using lasers to measure very narrow and stable atomic transitions. Narrow refers to the fact that only a limited range of optical frequencies can be used to excite/measure the transition in the atom. ;For the target space based optical clock, this requires the laser frequency to be controlled to approximately one part in a trillion.
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Switzerland

GSTP

GT27-017MM

MicroR Systems

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Artificial intelligence will allow vast quantities of earth observation data to be analyzed. Image compression can both provide a performance boost and make systems more economical. However, most high-performance compression methods have been tuned to the human eye, rather than developed for machine vision, generating artefacts that although invisible limit the performance of advanced algorithms. Compression targeting AI and high radiometric accuracy applications is needed.

 

Switzerland

GSTP

G617-241TAdk

Dotphoton SA

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In the last years, the interest in the development of bio-composite materials for space application has increased and the development of such materials has started with the aim of reducing the environmental foot print of our space missions.
 

Switzerland

GSTP

G61C-039MS

Bcomp AG

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