Conceptual Thermal Design and Analysis of a Far-Infrared/Mid-Infrared Remote Sensing Instrument

Paper #:
  • 921369

Published:
  • 1992-07-01
Citation:
Roettker, W., "Conceptual Thermal Design and Analysis of a Far-Infrared/Mid-Infrared Remote Sensing Instrument," SAE Technical Paper 921369, 1992, https://doi.org/10.4271/921369.
Pages:
13
Abstract:
This paper presents the conceptual thermal design and analysis results for the Spectroscopy of the Atmosphere using Far-Infrared Emission (SAFIRE) instrument. SAFIRE has been proposed for Mission to Planet Earth to study ozone chemistry in the middle atmosphere using remote sensing of the atmosphere in the far-infrared (21-87 microns) and mid- infrared (9-16 microns) spectra. SAFIRE requires that far-IR detectors be cooled to 3-4 K and mid-IR detectors to 80 K for the expected mission lifetime of five years. A superfluid helium dewar and Stirling-cycle cryocoolers provide the cryogenic temperatures required by the infrared detectors. The proposed instrument thermal design uses passive thermal control techniques to reject 465 watts of waste heat from the instrument.
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