REVERSIBLE PERMEABILITY MEASURING DEVICE

摘要

The present invention relates to a reversible permeability measuring device for measuring the magnetic characteristics and the magnetic flux change in a specimen, as one of a plurality of non-destructive methods for evaluating mechanical properties. The reversible permeability measuring device of the present invention directly measures a magnetic field change induced at the surface of a specimen through the use of a magnetic potentiometer (20) and a flux meter (50), thereby accurately evaluating the deterioration of materials.