What is a handheld refractometer？
Refractive index definition: When a light enters another transparent medium from a transparent medium, the phenomenon of refraction occurs. This phenomenon is caused by the different speeds of light in different kinds of medium. The refractive index is the ratio of the speed of light in the air to the speed of propagation in other materials.
It can be used to determine the refractive index of a liquid, the solute content of a solution, the sugar content of a wine, the water content of a high-sugar solution, the salinity of seawater, and the specific gravity of a battery electrolyte. Widely used in petrochemicals, light food, medicine and health and environmental protection and greening industries.
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