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Nano-G research laboratory for a spacecraftAn acceleration free research laboratory is provided that is confined within a satellite but free of any physical engagement with the walls of the satellite, wherein the laboratory has adequate power, heating, cooling, and communications services to conduct basic research and development. An inner part containing the laboratory is positioned at the center-of-mass of a satellite within the satellite's outer shell. The satellite is then positioned such that its main axes are in a position parallel to its flight velocity vector or in the direction of the residual acceleration vector. When the satellite is in its desired orbit, the inner part is set free so as to follow that orbit without contacting the inside walls of the outer shell. Sensing means detect the position of the inner part with respect to the outer shell, and activate control rockets to move the outer shell; thereby, the inner part is repositioned such that it is correctly positioned at the center-of-mass of the satellite. As a consequence, all disturbing forces, such as drag forces, act on the outer shell, and the inner part containing the laboratory is shielded and is affected only by gravitational forces. Power is supplied to the inner part and to the laboratory by a balanced microwave/laser link which creates the kind of environment necessary for basic research to study critical phenomena such as the Lambda transition in helium and crystal growth, and to perform special metals and alloys research, etc.
Document ID
19910017887
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Vonbun, Friedrich O.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Garriott, Owen K.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
June 4, 1991
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
Patent Number: US-PATENT-5,020,743
Patent Application Number: US-PATENT-APPL-SN-344872
Patent Number: NASA-CASE-GSC-13197-1
Accession Number
91N27201
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-5,020,743|NASA-CASE-GSC-13197-1
Patent Application
US-PATENT-APPL-SN-344872
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