Some features of cryogenic cooling systems of infrared scanner detectors for microsatellites

1Zasuha, SA, 2Makarov, AL, 3Lykholit, NI, 1Semenov, LP, 4Melenevskiy, YA, 5Arkhipov, VT
1State Space Agency of Ukraine, Kyiv, Ukraine
2Yangel Yuzhnoye State Design Office, Dnipro, Ukraine
3Special Device Production State Enterprise “Arsenal”, Kyiv, Ukraine
4Sci.-Tech. Centre of Cryospace Technology "Cryokosmos", Kharkiv, Ukraine
5Sci.-Tech. Centre of Cryo-space Technology "Cryokosmos", Kharkiv, Ukraine
Kosm. nauka tehnol. 2013, 19 ;(5):56–62
Publication Language: Russian

We considered different cooling systems of the IR scanner designed for the use in intermittent duty aboard small satellites. It is shown that one of the system types can be a cryostatting scanner with an evaporation accumulator for cooling the detectors in a passive mode, i.e., at the disconnected gas cryogenic machine (GCM). Such a system requires additional mass and power consumption but allows one to separate in time the work of the GCM and IR scanning. We consider some features of the system of heat removal from the GCM for small satellites operating on Sun-synchronous orbits

Keywords: cooling systems, IR scanner, small satellites

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