Making of ferromagnetic elliptical shell in transverse magnetic field

• Autorzy: Jakubiuk K. , Wołoszyn M. , Zimny P.
• Konferencja: Computer Applications in Electrical Engineering 2013 (15-16.04.2013; Poznań, Polska)
• Języki publikacji: EN

Abstrakty

EN

A ferromagnetic object, located in the Earth’s magnetic field, changes its distribution. Through measuring such disturbances, one can locate the object and destroy it. To conceal the object, a special winding is placed inside its ferromagnetic shell, and its task is to eliminate the disturbances in the distribution of the Earth’s magnetic field. A thin walled elliptical shell, made of ferromagnetic material, is examined as the object model. There are coils, placed inside the shell, and their task is to generate a magnetic field, which is eliminating the effect, the shell is making on the distribution of the Earth’s magnetic field in the surrounding area. Such a procedure is called magnetic masking and the winding used for this purpose is called the masking winding. The possibility of building the masking windings for the ferromagnetic elliptical shell, situated in a transverse magnetic field respectively to its major axis, is also examined. The solution of Maxwell’s equations, which are describing the magnetic field distribution caused by the ferromagnetic shell presence in the Earth’s magnetic field, is found. Furthermore, the ability of selecting coils, which are eliminating the perturbations of the magnetic field outside the shell completely, is proven.

Słowa kluczowe

EN

ferromagnetic object; magnetic field; ferromagnetic shell

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Poznan University of Technology Academic Journals. Electrical Engineering
• Rocznik: 2013
• Tom: No. 73
• Strony: 131--136
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Jakubiuk K.

• Gdańsk University of Technology

autor

Wołoszyn M.

• Gdańsk University of Technology

autor

Zimny P.

• Gdańsk University of Technology

Bibliografia

• [1] Jakubiuk K., Zimny P., Wołoszyn M.: Maskowanie obiektu w kształcie elipsoidy w ziemskim polu magnetycznym. International Conference on Fundamentals of Electrotechnics and Circuit Theory. Gliwice-Ustroń, pp.25-26, 2012.
• [2] Lebiediew N.N.: Funkcje specjalne i ich zastosowania. PWN, Warszawa 1957.
• [3] Hobson E.W.: The Theory of Spherical and Ellipsoidal Harmonics. Cambridge at the University Press 1931.