Process electronic refractar meter in a compact structure

The use of refracto-metric methods, is largely spread, in many branches of chemical, oil, food, pharmaceutical industry and in biological, chemical and medico-sanitary laboratories. The use of refractometry has also a practical importance in the research of complex systems, like biological products (volatile oils, greases, milk, blood) and many industrial materials (liquid combustible, lubricant oil, glass and rubber). The composition modification of a complex mixture of substances attracts a variation of mixture of the refraction index. The continuous determination of the index value allows the control, during the process, of the composition variation of different materials in the process of their technological conditioning (distillation, extraction, hydrogenation, etc.) The refractive index of a liquid can be measured using an automatic refractometer. The refractometer finds the critical angle of an incident beam of monochromatic light passing through the synthetic sapphire prism into the liquid sample. At the critical angle, no transmitted light enters the liquid so this refractometer can be used for both transparent and opaque liquids