Abstract
Liquid prism is a sort of prism composed of liquid. It can create adaptive systems by taking advantage of the unique properties of liquids. The liquid prism can be applied in optical communication, biochemistry and medicine, optical imaging system, etc.. Here the liquid prism is applied in refractometers to analyze the refractive index, density, concentration and dispersion of liquid. Comparing with Abb refractometer, this refractometer uses a liquid prism instead of several solid prisms, thus its weight and cost are reduced. In addition, the measuring range of the refractive index may be 1.15~2 and excels Abb refractometer (n:1.33~1.70) to meet measurement of some new liquid materials such as ionic liquids, liquid crystals, and so on. Moreover, it can avoid the measuring error resulting from liquid uniformly coating on the prism and leaking light in Abbe refractometer. So it takes on broad market foreground.
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