Infrared defect detection via broad-band acoustics

摘要

A method of detecting defects in structures (11), comprising the steps of inducing mechanical energy in a structure (11) via the emission of a broad-band acoustic signal, and capturing over a time interval a plurality of images (20, 40, 50) of the structure (11) each of the plurality of images (20, 40, 50) comprised of a plurality of pixels arranged in a plurality of rows and columns each indicative of an intensity of infrared energy emitted by a portion of the structure (11).