AN AUTOMATIC APPROACH TO OPTIMIZE MULTIFREQUENCY EDDY CURRENT TESTING

Abstract

This paper presents a novel microcomputer-controlled multifrequency eddy current tester permitting the optimal frequency combination to be automatically determined for a given testing application. Measuring signals are digitized at the earliest possible time which is an essential criterion for flexible evaluation algorithms.

Key words:

• Eddy currents
• multifrequency automatic testing
• digitized output
• computer processing.