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Evaluation of Capacitors at Cryogenic Temperatures for Space ApplicationsAdvanced electronic systems designed for use in planetary exploration missions must operate efficiently and reliably under the extreme cold temperatures of deep space environment. In addition, spacecraft power electronics capable of cold temperature operation will greatly simplify the thermal management system by eliminating the need for heating units and associated equipment and thereby reduce the size and weight of the overall power system. In this study, film, mica, solid tantalum and electric double layer capacitors were evaluated as a function of temperature from room to liquid nitrogen in terms of their dielectric properties. These properties included capacitance stability and dielectric loss in the frequency range of 50 Hz to 100 kHz. DC leakage current measurements were also performed on the capacitors. The results obtained are discussed and conclusions are made concerning the suitability of the capacitors investigated for low temperature applications.
Document ID
19980137723
Document Type
Reprint (Version printed in journal)
Authors
Patterson, Richard L. (NASA Lewis Research Center Cleveland, OH United States)
Hammoud, Ahmad (NYMA, Inc. Brook Park, OH United States)
Gerber, Scott S. (NYMA, Inc. Brook Park, OH United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1998
Subject Category
Electronics and Electrical Engineering
Report/Patent Number
E-11145
NASA/TM-1998-206983
NAS 1.15:206983
Meeting Information
1998 International Symposium: Electrical Insulation(Washington, DC)
Funding Number(s)
CONTRACT_GRANT: NAS3-27186
PROJECT: RTOP 632-1A-1H
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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