有限長コアからなる磁界センサのダイポール磁界に対する応答

概要

論文の詳細を見る
A simple method was developed for using the resolution of a magnetic field sensor with a finite-length thin magnetic core in order to assess its ability to detect a tiny magnetic dipole source. The values of the total linkage magnetic flux to the core in a uniform magnetic field and in a dipole magnetic field are compared to determine the detectability of a tiny magnetic dipole source. For a given geometry of cores and a dipole source, the magnetic flux densities in a thin core are calculated numerically by means of a FEM package. For a given fluxgate magnetometer with the resolution characterized in the uniform magnetic field, one can tell whether or not it is possible for the magnetometer to detect a given tiny magnetized sphere within the limit of allowable access to the target.
社団法人日本磁気学会の論文
2008-03-01