INFLUENCE OF THE SIZE OF SAMPLE IN MAGNETIC ADAPTIVE TESTING

Abstract

Magnetic adaptive testing is a nondestructive method, based on systematic measurement and evaluation of magnetic hysteresis loops, to characterize the degradation of ferromagnetic materials. Magnetic parameters in general depend on the size of the samples to be measured, and results of measurements, performed on different size samples cannot be compared with each other. In this work it is shown, that by proper choice of the size of magnetizing yoke, the degradation of the material can be correctly determined even in that case if different size of samples are measured.