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Rotating-unbalanced-mass Devices for Scanning Balloon-borne Experiments, Free-flying Spacecraft, and Space Shuttle/space Station ExperimentsA new method is presented for scanning balloon-borne experiments, free-flying spacecraft, and gimballed experiments mounted to the space shuttle or the space station. It uses rotating-unbalanced-mass (RUM) devices for generating circular, line, or raster scan patterns and an auxiliary control system for target acquisition, keeping the scan centered on the target, and producing complementary motion for raster scanning. It is ideal for applications where the only possible way to accomplish the required scan is to physically scan the entire experiment or spacecraft as in x ray and gamma ray experiments. In such cases, this new method should have advantages over prior methods in terms of either power, weight, cost, performance, stability, or a combination of these.
Document ID
19900015939
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Polites, Michael E. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1990
Subject Category
Engineering (General)
Report/Patent Number
NAS 1.60:3030
NASA-TP-3030
Accession Number
90N25255
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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