METHOD AND APPARATUS FOR NONDESTRUCTIVELY MEASURRING THE THICKNESS OF A MAGNETIC FLUX CONDUCTIVE BASE MATERIAL

摘要

Measuring appts. for thickness of clothing is concerned with nondestruction test of metal. It especially measures thickness of flux conductive clothing material placed on the basic conductive material which has different permitivity. This appts. comprises an incomplete core type transformer that measure thickness nondestructively by indirectly using the ratio of the primary voltage to the induced secondary votage.