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dc.contributor.authorMorgan, Michael A.
dc.date.accessioned2015-09-28T22:31:23Z
dc.date.available2015-09-28T22:31:23Z
dc.date.issued2007
dc.identifier.urihttp://hdl.handle.net/10945/46715
dc.description.abstractComputation of low-frequency field penetration through conducting and magnetic materials is important for accessing interference within devices and facilities. Another use is the prediction of naval vessel vulnerability to detection caused by the field signatures of their internal electrical machinery. A hybrid procedure is used for predicting the penetration of low-frequency fields through a cylindrical structure. The structure is assumed to be rotationally symmetric but otherwise can be inhomogeneous, including layers or rings of differing material. The internal source is an axially oriented multi-turn coil. Field computation is formulated using a finite element solution within the interior region coupled to a spheroidal field expansion in the unbounded exterior. Comparisons are made to field measurements for a coil inside a steel pipe at frequencies of 1Hz and 50Hz.en_US
dc.description.sponsorshipThis research was funded by the Office of Naval Research under grant N00001407WR20052. Measurements were provided by Dr. Kimball T. Watts.en_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.titleHybrid Computation of Low-Frequency Field Penetration Through Open Ended Metallic Cylindersen_US
dc.typeArticleen_US
dc.contributor.departmentElectrical and Computer Engineeringen_US


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