Over the past decade, digital holography has evolved into one of the fastest and at the same time most accurate methods for recording the surface topography of components in the production line. A survey article by Fraunhofer IPM scientists in the journal ‘Light: Advanced Manufacturing’ describes how this came about. A wide variety of industrial applications of digital holographic sensors is presented – from the first installation in the manufacture of sealing surfaces for the automotive sector in 2015 to current use in high-precision processor production in 2021.
