Patent ID: 8811654

Claim:
An ascertainment device for non-destructive determination of material characteristics of an aircraft component, comprising: a data transmission device that provides image data of a layer, which is optically detected from an outside of a workpiece to be examined; and an arithmetic-logic unit; that detects first areas having a first pixel characteristic and second areas having a second pixel characteristic using the image data, the first pixel characteristic being associated with a fiber inlay of a fiber composite layer, and the second pixel characteristic being associated with an at least part-crystalline thermoplastic polymer of the fiber composite layer, the thermoplastic polymer having a crystalline form or an amorphous form; and the arithmetic-logic unit determines a relationship of the first areas to the second areas, wherein the arithmetic-logic unit visually distinguishes the crystalline form from the amorphous form and visually distinguishes the fiber inlay from the crystalline form of the thermoplastic polymer.