NASA NTRS · 19740009815
Banded transformer cores
Abstract
A 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.
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Mclyman, C. W. T.. 1974-02-12. Banded transformer cores. https://ntrs.nasa.gov/citations/19740009815
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