Method of measuring refractivity of transparent or semi-transparent solid

Abstract

The invention provides a method of measuring refractivity of a transparent or semi-transparent solid and is used for measuring refractivity of a transparent or semi-transparent to-be-measured solid through a predetermined instrument. The method comprises following steps of: dripping a precursor solution of the to-be-measured solid onto a refracting prism of the predetermined instrument; compressing and fixing a light entering prism and a refracting prism of the predetermined instrument, so as to attach the precursor solution between the light entering prism and the refracting prism uniformly;solidifying the precursor solution under a predetermined solidification condition of the precursor solution, so as to form a solid film with a polished surface meeting a measurement requirement of thepredetermined instrument, and using the solid film as a to-be-measured solid film; and measuring refractivity of the to-be-measured solid film by using the predetermined instrument. The method can directly measure refractivity of the to-be-measured solid without polishing the to-be-measured solid, thereby having higher measurement efficiency and accuracy and solving the problem of unclear readingfield caused by the fact that the polished surface of the to-be-measured solid does not meet the requirement.

Description

technical field [0001] The invention belongs to the field of instruments and instruments, and relates to a method for measuring the refractive index of a solid, in particular to a method for measuring the refractive index of a transparent or translucent solid. Background technique [0002] The refractive index is the ratio of the propagation speed of light in a vacuum to the propagation speed of light in the medium. The higher the refractive index of a material, the stronger the ability to refract incident light. The same material has a higher refractive index than refraction The edge with low refractive index is thinner, and the properties of the object can be reflected by measuring the refractive index of the object. [0003] When measuring the refractive index of an object, it is measured by using a refractometer, such as an Abbe refractometer or the like. Abbe's refractometer measures the refractive index of objects based on the law of refraction, mainly to measure the ...

AI Technical Summary

Problems solved by technology

[0004] When measuring the refractive index of a transparent liquid with an Abbe refractometer, the reading is relatively clear and the operation is relatively simple. However, when measuring the refractive index of a transparent or translucent solid, the measured solid must have a smooth polished surface. If polished If the surface is not smooth enough, it cannot fully contact with the refracting prism of the Abbe refractometer, making it difficult for the observer to see a clear dividing line between light and dark when reading, and the field of vision is very dim, making it difficult to read accurately and affecting the measurement accuracy of the refractive index

At the same time, the polished surface of the measured solid has high requirements for smoothness, and the manufacturing process is difficult and wastes materials.

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