SABER thermal management update

Scott M. Jensen; J. Clair Batty; William A. Roettker

doi:10.1117/12.254156

14 October 1996 SABER thermal management update

Scott M. Jensen, J. Clair Batty, William A. Roettker

Proceedings Volume 2814, Cryogenic Optical Systems and Instruments VII; (1996) https://doi.org/10.1117/12.254156
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

This paper addresses the current thermal management techniques of the Sounding of the Atmosphere using broadband emission radiometry (SABER) instrument. The SABER instrument is being developed jointly by NASA Langley and the Space Dynamics Laboratory at Utah State University. This instrument will fly on the Thermosphere-Ionosphere- Mesosphere Energetics and Dynamics spacecraft being built at the Applied Physics Laboratory at John Hopkins University. The infrared sensors on SABER must be cooled to 75 K for a 2 year period and at a 100 percent duty cycle. Because of SABER's stringent mass, size, and power constraints, the TRW miniature pulse tube refrigerator has been baselined to cool the focal plane assembly. A passive radiator will maintain the telescope at an average temperature near 230 K. Heat from the cryo-cooler and electronics will be dissipated by a separate radiator maintained at approximately 273 K. Approaches and advances in thermal management technology currently employed on the SABER instrument to ensure that heat loads and temperature ranges are met are also discussed.

Citation Download Citation

Scott M. Jensen, J. Clair Batty, and William A. Roettker "SABER thermal management update", Proc. SPIE 2814, Cryogenic Optical Systems and Instruments VII, (14 October 1996); https://doi.org/10.1117/12.254156

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