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Electronics and Software Design of theSuaineadh REXUS Sounding RocketExperiment
KTH, School of Information and Communication Technology (ICT).
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The benet of developing large space structures has been acknowledged by many space agencies in successfully supporting the design and operations of numerous missions. Such structures include deploying concentrators, solar sails and/or re怀ectors. Acting as a proof of concept, a team formed from the University of Strathclyde (Glasgow, UK), the University of Glasgow (Glasgow, UK) and the Royal Institute of Technology (Stockholm, Sweden) aims to deploy a space web the Suaineadh (pronounced sha-NAID) experiment in microgravity conditions.

The experiment will be launched in March 2012 on a REXUS (Rocket Experiments for University Students) sounding rocket. Following launch, the experiment will be ejected from the nosecone of the rocket. Centrifugal forces acting on the space webs spinning assembly will be used to stabilise the experiments platform. A specically designed spinning reaction wheel, with an active control method, will be used. Once the experiments motion is controlled and at a specic distance from the rocket, a 2 m by 2 m space web will be released. Four daughter sections situated in the corners of the square web will serve as masses to stabilise the web due to the centrifugal forces acting on them. The four daughter sections contain inertial measurement units (IMUs). Data gained from the IMUs will be used to verify the simulation data. Additional inertial measurements are also recorded from an IMU located on the central hub section. Furthermore, several cameras are also mounted on the central hub section. Each point outwards towards the corner sections and will capture high resolution imagery of the deployment process. Novel electronic architecture has been developed in order to timestamp and compresses the high resolution data. The accumulated experimental data is stored primarily on the experimental module. A bulk of the data is transmitted wirelessly to the REXUS rocket and stored onboard. Moreover, a nite amount of data is transmitted to the ground station using the REXUS downlink. This redundancy guarantees su-cient data for validation of the experiment, even if REXUS will be destroyed during re-entry or landing. After re-entry, the experimental module will be recovered using a RF-beacon. The aim of this thesis is to design and implement electronics and software of the Suaineadh experiment.

Place, publisher, year, edition, pages
2012. , 204 p.
Series
Trita-ICT-EX, 2012:035
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-105553OAI: oai:DiVA.org:kth-105553DiVA: diva2:571441
Uppsok
Technology
Examiners
Available from: 2012-11-22 Created: 2012-11-22 Last updated: 2012-11-22Bibliographically approved

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CiteExportLink to record
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