Laser schlieren deflectometry

Laser schlieren deflectometry is an optical measurement technique used to visualize and quantify changes in refractive index within a transparent medium, such as gases or fluids. It combines concepts from both schlieren imaging and deflectometry, leveraging the properties of laser light to achieve high sensitivity and precision. ### Key Principles: 1. **Schlieren Imaging**: This technique relies on the deflection of light rays passing through a medium where the refractive index varies.