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Banded transformer coresA banded transformer core formed by positioning a pair of mated, similar core halves on a supporting pedestal. The core halves are encircled with a strap, selectively applying tension whereby a compressive force is applied to the core edge for reducing the innate air gap. A dc magnetic field is employed in supporting the core halves during initial phases of the banding operation, while an ac magnetic field subsequently is employed for detecting dimension changes occurring in the air gaps as tension is applied to the strap.
Document ID
19740009815
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Mclyman, C. W. T. (NASA Pasadena Office CA, United States)
Date Acquired
September 3, 2013
Publication Date
February 12, 1974
Subject Category
Thermodynamics And Combustion
Report/Patent Number
Patent Application Number: US-PATENT-APPL-SN-284245
Patent Number: US-PATENT-3,792,399
Patent Number: NASA-CASE-NPO-11966-1
Patent Number: NASA-CASE-NPO-13159-1
Accession Number
74N17928
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-3,792,399|NASA-CASE-NPO-11966-1|NASA-CASE-NPO-13159-1
Patent Application
US-PATENT-APPL-SN-284245

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