CORROSION DETECTION AND THICKNESS EVALUATION UTILIZING ACTIVE NEAR-FIELD MICROWAVE NONDESTRUCTIVE TESTING TECHNIQUES

摘要

An inventive method utilizing microwave nondestructive testing techniques for enhanced detection and evaluation of rust under paint has been developed. The results are promising and show that the use of a layer of dielectric material with known properties to replace the standoff layer (air) yields significant improvements in the measurement sensitivity and resolution.