Space instrumentation - PACS
PACS Grating Drive Mechanism
AMOS has been awarded by ESA to design and manufacture the PACS Grating Drive Mechanism. PACS was embarked on-Board the HERSCHEL.
The Grating Assembly consists of a flat 320x80 mm2 ruled grating, its positioning mechanism and its launch-lock. The grating is actuated by a cryogenic motor with a resolution of a few arcsec and is installed into the PACS focal plane unit.
Conception and design has been realised to meet severe requirement for an on-board experiment working at cryogenic temperatures. The “Grating Assembly” is strongly lightweighted (3,77 Kg) and composed of Stainless Steel as well as Aluminium 6061T6.
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