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URN: urn:nbn:de:swb:90-483972

The mechanical and thermal setup of the GLORIA spectrometer

Piesch, C.; Sartorius, C.; Friedl-Vallon, F.; Gulde, T.; Heger, S.; Kretschmer, E.; Maucher, G.; Nordmeyer, H.; Barthel, J.; Ebersoldt, A.; Graf, F.; Hase, F.; Kleinert, A.; Neubert, T.; Schillings, H. J.

Abstract:
The novel airborne Gimballed Limb Observer for Radiance Imaging of the Atmosphere (GLORIA) measures infrared emission of atmospheric trace constituents. GLORIA comprises a cooled imaging Fourier transform spectrometer, which is operated in unpressurized aircraft compartments at ambient temperature. The whole spectrometer is pointed by the gimbal towards the atmospheric target. In order to reach the required sensitivity for atmospheric emission measurements, the spectrometer optics needs to operate at a temperature below 220 K. A lightweight and compact design is mandatory due to limited space and high agility requirements. The cooled optical system needs to withstand high pressure and temperature gradients, humidity, and vibrations. A new cooling system based on carbon dioxide and liquid nitrogen combined with high-performance insulation has been developed to meet the mechanical, thermal, and logistical demands. The challenging mechanical and spatial requirements lead to the development of a novel rigid linear slide design in order to achieve the large optical path difference for high spectral resolution. This paper describes the me ... mehr


Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Publikationstyp Zeitschriftenaufsatz
Jahr 2015
Sprache Englisch
Identifikator ISSN: 1867-1381, 1867-8548
KITopen ID: 1000048397
HGF-Programm 12.04.03; LK 01
Erschienen in Atmospheric measurement techniques
Band 8
Heft 4
Seiten 1773-1787
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
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