Experimental Design for Virtual Experiments in Tilted-Wave Interferometry

The tilted-wave interferometer (TWI) is a recent and promising technique for optically measuring aspheres freeform surfaces combines an elaborate experimental setup with sophisticated data analysis algorithms. There are, however, many parameters that influence its performance, greater knowledge about the behavior of TWI needed before it can be established as measurement standard. Virtual experiments are appropriate tool this purpose, in paper we present digital twin was carefully designed such experiments. expensive numerical calculations involved combined existence multiple influencing limit number virtual feasible, which poses challenge to researchers. Experimental design statistical allows planned maximize information gain. We applied goal identifying main sources uncertainty. results from work presented here.