Multiwavelength Scatterometric Sensor With an Optimized Geometry for Milk Fat Content Investigation (Theory and Experiment)

Laser light‑scattering analyzers, based on recording the radiation intensity in forward, side, and back scattering, have physical and technical limitations that prevent the implementation of universal technical solutions based on them for integration into industrial systems. Within the scope of the study, an improved scatterometric method is proposed. It is based on recording the radiation intensity in back scattering and enables component‑level diagnostics of highly scattering media (in particular, milk) regardless of their geometric features. This will allow the development of universal technical tools based on this method for integration into industrial quality control systems. A mathematical model of such light‑scattering systems has been developed, and an experimental prototype of the device based on the described method has been proposed.