Long-life spaceborne cryocooler for the Advanced Spaceborne Thermal Emission and Reflection Radiometer/Thermal Infrared Radiometer (ASTER/TIR)

Keiji Kamei; Osamu Nishihara

doi:10.1117/12.185827

14 September 1994 Long-life spaceborne cryocooler for the Advanced Spaceborne Thermal Emission and Reflection Radiometer/Thermal Infrared Radiometer (ASTER/TIR)

Keiji Kamei, Osamu Nishihara

Author Affiliations +

Proceedings Volume 2268, Infrared Spaceborne Remote Sensing II; (1994) https://doi.org/10.1117/12.185827
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

We have been developing a long life spaceborne cryocooler for the thermal infrared radiometer (TIR), an observation system on the advanced spaceborne thermal emission and reflection radiometer (ASTER). ASTER was selected by NASA to fly on the EOS-AM1 platform which will be launched in 1998. The TIR cryocooler was designed to maintain the infrared detector's temperature at 80 Kelvin. And to do this, the cooling capacity is required more than 1.2 W when the cold head is 70 K. The cryocooler must operate continuously for more than 5 years with low mechanical disturbance. To meet these requirement, we used clearance seals and linear electric motors for long life, and back-to-back compressors and an expander with an active balancer for low mechanical disturbance.

Citation Download Citation

Keiji Kamei and Osamu Nishihara "Long-life spaceborne cryocooler for the Advanced Spaceborne Thermal Emission and Reflection Radiometer/Thermal Infrared Radiometer (ASTER/TIR)", Proc. SPIE 2268, Infrared Spaceborne Remote Sensing II, (14 September 1994); https://doi.org/10.1117/12.185827

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