Patent ID: 6377040
Filing Date: 2002-04-23
Classification: G01N

Abstract:
Eddy current-based test probe for nondestructive material testing and for detecting inhomogeneities or defects of an article of conductive material, with at least one transmitting coil supplied with a high frequency voltage and a receiving coil assigned to it; wherein the receiving coil is located at a fix distance relative to the transmitting coil, has a height to width ratio of less than 1, and a core of a material with magnetic permeability; wherein the at least one transmitting coil has a longitudinal axis and the receiving coil has a longitudinal axis that is oriented substantially perpendicular relative to the longitudinal axis of the at least one transmitting coil, with the longitudinal axes of the receiving and transmitting coils having at least roughly one common intersection point; wherein the transmitting coil and receiving coil are located within a shielding cup with a front face which is produced from a material with magnetic permeability; and wherein the test probe is pivotally mounted and is rotatable around the longitudinal axis of one of the transmitting coil and the receiving coil by a motorized drive.