Different classifications of refractometers
A refractometer, also known as a refractometer, is an instrument that uses light to test the concentration of a liquid. It is used to measure the refractive index, birefringence, and optical properties. The refractive index is one of the important physical constants of substances. Many pure substances have a certain refractive index. If the substance contains impurities, the refractive index will change, and there will be deviations. The more impurities, the greater the deviation. It is an instrument that uses light to test the concentration of liquids to measure physical constants such as refractive index, birefringence, and optical properties. It is usually composed of high refractive index prisms, prism reflectors, lenses, scales and eyepieces, etc. It is widely used in food and beverage industry, flavor and fragrance industry, textile printing industry, chemical industry, automobile transportation industry, metal processing and medical clinical inspection, etc. fields.
Generally speaking, refractometers are divided into handheld refractometers, sugar refractometers, honey refractometers, gemstone refractometers, digital display refractometers, automatic refractometers, online refractometers, Abbe refractometers, etc. The common ones on the market are handheld/desktop Abbe refractometers, semi-automatic Abbe refractometers, and fully automatic refractometers. Hand-held/table-top Abbe refractometers are relatively cheap, but they can only perform simple tests because their test accuracy is not high enough. While the semi-automatic Abbe refractometer has been slightly improved, the performance of the automatic refractometer has been significantly improved, and the measurement accuracy is high, but the price is correspondingly high. Compared with the Abbe refractometer, another major feature of the automatic refractometer is that there is no requirement for the tested liquid, while the accuracy of the Abbe refractometer will be affected by the tested liquid.
