Abstract
The image equations are applied to the nondestructive evaluation. Linearity and non-linearity are identified from a visualized animation,representing a physical dynamic system by means of the image Helmholtz equation which is capable of extracting the characteristic values equivalently representing the modes of physical dynamic system. In the present paper, a set of sequentially distinct magnetized SEM domain images is analyzed to extract the behavior of magnetic domain dynamics. As a result, the linearity is extracted in the Rayleigh magnetization region. The non-linearity is extracted during irreversible as well as rotating magnetization regions.
