An apparatus and method are herein disclosed which utilize a ratio based on a varied angle of incidence of light on an optical fiber analysis system. By calculating the ration of light incident on the sample element, variations in the system parameters which can provide deleterious effects are obviated.
Cardenas-Valencia, Andres M.; Steimle, Eric Toby; Byrne, Robert H.; and Calves, Melynda, "Method and apparatus for continuous measurement of the refractive index of fluid" (2006). USF Patents. 650.
University of South Florida