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Munich, Germany

Kayser-Threde GmbH based in Munich, Germany is a systems house specializing in the design and development of high-technology solutions for astronautics, science and the industry. The array of solutions includes applications in manned and unmanned space missions, optics, telematics, crash test data acquisition, and process control for the rail sector.On September 1, 2014, Bremen-based OHB System AG and Munich-based Kayser-Threde GmbH merged under the name OHB System AG. In this way, the capabilities and capacities of our two outstanding space companies were centralized Wikipedia.

Requirements, advantages and risks of process data transmission through open networks are dis-cussed. Applications actually practised by DB Energie are described as examples of how sources of error may occur in the transmission system. Knowledge and procedures are proposed to ensure a reliable process data transmission. Source

Lohle S.,Institute For Raumfahrtsysteme | Mezger A.,Kayser Threde GmbH | Fulge H.,Institute For Raumfahrtsysteme
Acta Astronautica

The Hayabusa sample return capsule, which contained asteroid samples, re-entered the Earth's atmosphere on June 13, 2010. An ablative carbon-phenolic thermal protection system (TPS) was used to enable a safe return for the small capsule and the containing samples. Besides a research aircraft operated by NASA with a wide range of imaging and spectrographic cameras for remote sensing of the radiation of the Hayabusa capsule during its entry flight, observation from ground based stations has been realized. We participated in the ground based observation campaign with two instruments for spectroscopic and photometric measurements aiming to detect the surface temperature and the plasma radiation in front of the re-entering capsule. The system consists in an infrared camera and a wide range miniature fibre spectrometer. The paper presents the setup, the laboratory calibration procedure, and correction for transmission. The surface temperature of the capsule reached a peak of 3250 K when the capsule was at an altitude of 55.95 km. The thermographic camera measures independently slightly higher temperature at peak heating (3308 K). © 2012 Elsevier Ltd. All rights reserved. Source

Hofmann P.,Kayser Threde GmbH
Proceedings of the International Astronautical Congress, IAC

Jurgen Burfeindt, Gerrit Hausmann, Richard Haarmann, Lutz Richter Europe is presently preparing a robotic mission to the Earth's Moon. The Lunar Lander mission is aiming for a landing near the lunar South Pole in the year 2018. Different payload studies are currently being performed by the European Industry with ESA, but also with national funding. Kayser-Threde is leading or is significantly involved in the following payload studies: The "Lunar Dust Environment and Plasma Package" (L-DEPP) is accommodated on the ESA Lunar Lander vehicle for investigation of the plasma, charged/levitated dust and electromagnetic environment of the Moon. One objective of the intended investigation focuses on the transfer period between daylight and short darkness periods where great changes in this environment are expected. The "Lunar Dust Analysis Package" (L-DAP) is also accommodated on the lander spacecraft with the objective to determine, at microscopic scale, the mineralogical and elemental composition, the concentration of absorbed volatilcs as well as the key physical properties of lunar regolith samples delivered to the package. This is achieved by a combined Raman and LIBS spectrometer, coupled with optical and atomic force microscopy. The "Mobile Payload Element" (MPE) is designed to be a small autonomous innovative sample fetching rover vehicle in the 10 kg class, intended to be a German national contribution to the ESA Lunar Lander mission. Kayser-Threde, as the Phase 0/A industrial prime, has assembled relevant German industrial and institutional competences in space robotics for this study. The novel capability of the MPE is to acquire clearly documented samples from controlled surface as well as subsurface locations and to bring them to the lander for analysis with the volatile seeking instruments L-DAP and L-VRAP. The rover concept has a four-wheeled configuration with active suspension, being a compromise between innovation and mass efficiency. The suspension chosen allows a compact stowage of the MPE on the lander. As operational modes teleoperations from earth and autonomous navigation are foreseen. The MPE Phase 0/A study has finished in April 2012 and will be continued with a delta study beginning in October 2012. Copyright © (2012) by the International Astronautical Federation. Source

Isleif K.-S.,Leibniz University of Hanover | Gerberding O.,Leibniz University of Hanover | Gerberding O.,U.S. National Institute of Standards and Technology | Gerberding O.,University of Maryland University College | And 8 more authors.
Optics Express

Digitally enhanced heterodyne interferometry is a metrology technique that uses pseudo-random noise codes for modulating the phase of the laser light. Multiple interferometric signals from the same beam path can thereby be isolated based on their propagation delay, allowing one to use advantageous optical layouts in comparison to classic laser interferometers. We present here a high speed version of this technique for measuring multiple targets spatially separated by only a few centimetres. This allows measurements of multiplexed signals using free beams, making the technique attractive for several applications requiring compact optical set-ups like for example space-based interferometers. In an experiment using a modulation and sampling rate of 1.25 GHz we are able to demonstrate multiplexing between targets only separated by 36 cm and we achieve a displacement measurement noise floor of < 3pm/ √Hz at 10 Hz between them. We identify a limiting excess noise at low frequencies which is unique to this technique and is probably caused by the finite bandwidth in our measurement set-up. Utilising an active clock jitter correction scheme we are also able to reduce this noise in a null measurement configuration by one order of magnitude. © 2014 Optical Society of America. Source

Salado A.,Kayser Threde GmbH
23rd Annual International Symposium of the International Council on Systems Engineering, INCOSE 2013

There is an increasing interest in Model-Based Systems Engineering (MBSE) practices in academia and industry. The majority of research and adoption in industry is relevant to the early phases of the system life-cycle, where model-based design is expected to provide improved results during system development. However, little attention has been paid to the application of such methodology to later phases of the development, and in particular to system integration and verification of the actual manufactured system, which continues to be done in the traditional document-centric environment. This paper proposes a model-centric environment for system integration and verification activities at the end of the development cycle and presents benefits in effectiveness and efficiency in planning system integration and verification activities for a system under a model-centric environment. © 2013 by Alejandro Salado. Source

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