We provide a description of four optical systems for metrology using an electronic image processor for generation and display of interferograms. An example is provided of electronic holography on an automobile brake rotor.
Karl A. Stetson, Karl A. Stetson,
"K100 electronic holography system and HG7000 interferometric computer: instruments for automotive component analysis," Optical Engineering 42(5), (1 May 2003). https://doi.org/10.1117/1.1566773