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A real-time optoelectronic refractometer having an adjustable range of refractive index measurement is presented. The adjustment is achieved by obtaining a shift in the zero-reflected intensity point at the interface following the introduction of a glass plate of refractive index different from that of the constituent prism. The sensitivity remains reasonably high over the enhanced range of refractive...
A prism based refraciomeler sensor is described which is capable of measuring refractive indices over a wide range of values with high sensitivity. Since no movement of any mechanical part or the path of the optical beam is involved in the design, this refractometer is very robust and user friendly.
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