The exceptional property of the acoustics microscopy is, that the inside structure of opaque specimen can be examined, without having to destroy the specimen.

The contrast of the images is produced by inhomogeneities in the material. This being able to be both material and concentration differences. Thus, specal information about material disturbances like microcracks, particles, cavities, voids, and delaminations, but also layers transitions, interfaces or grain structures e.g. can be shown with an imaging resolution comparable to the light microscope.