Holographic metrology: some examples of imaging in medicine and non-destructive inspection

摘要

A pulsed ruby laser was used in an unstable environment to overcome the high stability requirements when a hologram is recorded. The images were recorded for the purpose of measurement applied to non-destructive inspection (NDI) and medical applications. High-resolution photographic film or plates coupled with wet processing was employed as the recording material, but other recording materials are considered. The paper also explores the potential of electronic and digitized processes currently being developed.