Number of detecting probe and spectral components in two-dimensional magnetic field visualization based on the projection method

The visualization of precise 2-D or 3-D magnetic flux distribution has been achieved for studying the precise design of magnetic machinery and device. Projection method is one of the useful techniques for measurement and visualization magnetic flux density. To determine the minimum number of probe, spatial frequency component has been discussed. In this probe design, it is important to choose the number of probe coil because this parameter will affect the reconstruction accuracy. In order to discuss this probe design, a magnetic flux leakage from the magnetic machinery and device is assumed, and the probe size is used in 100 mm square. Then a calculation model is employed to simulate the reconstruction process of magnetic flux distribution for the purpose of designing the optimum structure of probe.