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Magnetic tape recorder for long operating life in space.Magnetic tape recorders have long been used on satellites and spacecraft for onboard storage of large quantities of data. As satellites enter into commercial service, long operating life at high reliability becomes important. Also, the presently planned long-duration space flights to the outer planets require long-life tape recorders. Past satellite tape recorders have achieved a less than satisfactory performance record and the operating life of other spacecraft tape recorders has been relatively short and unpredictable. Most failures have resulted from malfunctions of the mechanical tape transport. Recent advances in electric motors and static memories have allowed the development of a new tape recorder which uses a very simple tape transport with few possible failure modes. It consists only of two brushless dc motors, two tape guides, and the recording heads. Relatively low tape tension, wide torque capability, and precise speed control facilitate design for mechanical reliability to match that of tape-recorder electronics.
Document ID
19720030101
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Bahm, E. J.
Hoffman, J. K.
(California Institute of Technology, Jet Propulsion Laboratory,Pasadena Calif., United States)
Date Acquired
August 6, 2013
Publication Date
September 1, 1971
Subject Category
Instrumentation And Photography
Report/Patent Number
IEEE PAPER 12,4
Accession Number
72A13767
Distribution Limits
Public
Copyright
Other

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