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Testing a prototype rotary mechanism for GMTIFS

Price, Ian; Hart, John; O'Brien, Ellen; Sharp, Robert; Gausachs, Gaston; Bloxham, Gabe; Vest, Colin; Gilbert, James; Espeland, Brady


The GMTIFS instrument requires multiple rotary mechanisms that will operate in a cryogenic environment. Angular precision up to one arc-second is required without the use of IR sources as part of an encoder. A general design that uses an annular conical rim bearing supported by three pairs of tapered pinch rollers has been proposed. One pair of pinch rollers is mounted on a flexure hinge to provide preload and accommodate thermal expansion. A pair of off set cylindrical cams carried by the...[Show more]

CollectionsANU Research Publications
Date published: 2018-07-10
Type: Conference paper
Source: Proceedings of SPIE - The International Society for Optical Engineering
DOI: 10.1117/12.2312337
Access Rights: Open Access


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