Accession Number : ADA180971

Title :   On the Numerical Modelling of a Magnetic Source (Abridged),

Corporate Author : ADMIRALTY RESEARCH ESTABLISHMENT PORTLAND (ENGLAND)

Personal Author(s) : Theobald,Ag

Report Date : MAY 1986

Pagination or Media Count : 15

Abstract : A scheme is described in which a magnetic source is modelled, from field measurements, by a multipole distribution, the fields of which are determined recursively. Further, the concept of an extended multipole source is introduced in which the multipole density distribution function is defined by a polynomial along a finite length line parallel to the x axis. The first derivative, with respect to the non linear positional parameters, for the above source models is given.

Descriptors :   *MAGNETIC FIELDS, *SOURCES, DISTRIBUTION FUNCTIONS, FIELD TESTS, GREAT BRITAIN, MAGNETIC FIELDS, MATHEMATICAL MODELS, MEASUREMENT, MULTIPOLARITY, NONLINEAR SYSTEMS, NORMAL DENSITY FUNCTIONS, DISTRIBUTION, POLYNOMIALS, POSITION(LOCATION), SOURCES, RECURSIVE FUNCTIONS

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE