Cryogenic vibration test set-up for space qualification

Details Cryogenic vibration test set-up for space qualification Cryogenic vibration test set-up for space qualification

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989cryo...29..559w&link_type=abstract

(Space Cryogenics Workshop, Frascati, Italy, July 18, 19, 1988, Proceedings. A91-28526 11-31) Cryogenics (ISSN 0011-2275), vol.

Mathematics

Logic

1

Cryogenic Cooling, Cryogenic Temperature, Gratings (Spectra), Infrared Spectrometers, Spectrometers, Vibration Tests, Infrared Space Observatory (Iso), Technological Forecasting

Scientific paper

For the validation and qualification program of the Short Wavelength Spectrometer in the Infrared Space Observatory, a special set-up for vibration testing at cryogenic temperatures was designed, built, and tested. This set-up has proved its usefulness and is fully operational; its design and performance are discussed here. The set-up can be cooled down to 80 K, using liquid nitrogen as a coolant. Loads of up to about 1 kg can be exposed to vibration levels representative for a launch. The mechanical transfer of the set-up is virtually flat up to 2000 Hz, while the cross coupling between the vibration axes is no more than about 5 percent. The time for cooling down can be as short as 30 min, while warming up takes less than an hour.

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