From Theory to Measurement

Abstract

In this final chapter we shall present results obtained from the application of methods and theories described in Part I of this book. Actual measurements were performed using a reflectometer constructed for the measurement of liquids. Our main aim was to seek and develop effective measurement and calculation techniques for determining the optical properties of various types of liquids. By optical properties we mean those quantities which describe the progress of an electromagnetic wave through a homogenous liquid — in other words, the refractive index and the extinction coefficient. Our choice of samples also included diffusing liquids such as milk and paper coating suspension. Our interest lay chiefly with reflection measurements because, in terms of measurement geometry, these are well suited to e.g. problematic industrial process measurements.