Pulsed field of a magnetising coil wound with a solid conductor of rectangular cross-section

 

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dc.contributor.advisor Neubauer, R E en_ZA
dc.contributor.author Gibson, Patrick en_ZA
dc.date.accessioned 2014-11-15T19:35:44Z
dc.date.available 2014-11-15T19:35:44Z
dc.date.issued 1990 en_ZA
dc.identifier.citation Gibson, P. 1990. Pulsed field of a magnetising coil wound with a solid conductor of rectangular cross-section. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/9640
dc.description Includes bibliographical references. en_ZA
dc.description.abstract This describes a mathematical approach to solving the pulsed magnetic field for an N-turned magnetising coil. This coil is assumed to be made from a copper conductor with rectangular cross-sectional area. The algorithm accounts for each turns physical dimensions and spatial coordinates with respect to other turns, by simulating each winding with a model helical turn. A boundary matching method is used to determine the current density distribution in the 2D plane of the call conductor and the changed impedance due to "skin-effect". By assuming this distribution and changed impedance applies for the N-turned coil volume, the effects of eddy current losses are approximated inside the call. Results of comparing field calculations with several analytical field solutions for static fields, and by measurements for pulsed fields, confirms the accuracy of the field algorithm in approximating a real coil field to within 10% error. This algorithm can be used to aid the design for generation of saturation fields for magnetisation of different ferromagnetic materials. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Electrical and Electronic Engineering en_ZA
dc.title Pulsed field of a magnetising coil wound with a solid conductor of rectangular cross-section en_ZA
dc.type Master Thesis
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Engineering and the Built Environment
dc.publisher.department Department of Electrical Engineering en_ZA
dc.type.qualificationlevel Masters
dc.type.qualificationname MSc en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Gibson, P. (1990). <i>Pulsed field of a magnetising coil wound with a solid conductor of rectangular cross-section</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/9640 en_ZA
dc.identifier.chicagocitation Gibson, Patrick. <i>"Pulsed field of a magnetising coil wound with a solid conductor of rectangular cross-section."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 1990. http://hdl.handle.net/11427/9640 en_ZA
dc.identifier.vancouvercitation Gibson P. Pulsed field of a magnetising coil wound with a solid conductor of rectangular cross-section. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 1990 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/9640 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Gibson, Patrick AB - This describes a mathematical approach to solving the pulsed magnetic field for an N-turned magnetising coil. This coil is assumed to be made from a copper conductor with rectangular cross-sectional area. The algorithm accounts for each turns physical dimensions and spatial coordinates with respect to other turns, by simulating each winding with a model helical turn. A boundary matching method is used to determine the current density distribution in the 2D plane of the call conductor and the changed impedance due to "skin-effect". By assuming this distribution and changed impedance applies for the N-turned coil volume, the effects of eddy current losses are approximated inside the call. Results of comparing field calculations with several analytical field solutions for static fields, and by measurements for pulsed fields, confirms the accuracy of the field algorithm in approximating a real coil field to within 10% error. This algorithm can be used to aid the design for generation of saturation fields for magnetisation of different ferromagnetic materials. DA - 1990 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1990 T1 - Pulsed field of a magnetising coil wound with a solid conductor of rectangular cross-section TI - Pulsed field of a magnetising coil wound with a solid conductor of rectangular cross-section UR - http://hdl.handle.net/11427/9640 ER - en_ZA


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