Laminar sample`s blister characteristic parameter determining method for use in aerospace field, involves detecting reciprocal action between sample and electromagnetic radiation in data set and determining parameter from detected data set

摘要

The method involves providing a sample (1), and irradiating the sample with a predetermined spectrum of electromagnetic radiation. A reciprocal action between the sample and the electromagnetic radiation in a data set is detected. A characteristic parameter is determined from the detected data set. The characteristic parameter describes a quantity and size of a blister (3) on a surface of the sample.