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Overview of NASA Magnet and Linear Alternator Research EffortsThe Department of Energy, Lockheed Martin, Stirling Technology Company, and NASA Glenn Research Center are developing a high-efficiency, 110 watt Stirling Radioisotope Generator (SRG110) for NASA Space Science missions. NASA Glenn is conducting in-house research on rare earth permanent magnets and on linear alternators to assist in developing a free-piston Stirling convertor for the SRG110 and for developing advanced technology. The permanent magnet research efforts include magnet characterization, short-term magnet aging tests, and long-term magnet aging tests. Linear alternator research efforts have begun just recently at GRC with the characterization of a moving iron type linear alternator using GRC's alternator test rig. This paper reports on the progress and future plans of GRC's magnet and linear alternator research efforts.
Document ID
Document Type
Technical Memorandum (TM)
Geng, Steven M.
(NASA Glenn Research Center Cleveland, OH, United States)
Schwarze, Gene E.
(NASA Glenn Research Center Cleveland, OH, United States)
Nieda, Janis M.
(QSS Group, Inc. Cleveland, OH, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2005
Subject Category
Energy Production And Conversion
Report/Patent Number
Meeting Information
Space Technology and Applications International Forum (STIF-2005)(Albuquerque, NM)
Funding Number(s)
WBS: WBS-22-972-20-01
Distribution Limits
Work of the US Gov. Public Use Permitted.
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