What is the difference between a digital sugar meter and a hand-held refractometer?

Mar 06, 2023

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What is the difference between a digital sugar meter and a hand-held refractometer?

 

Digital Brix Meter is used to quickly measure the concentration or refractive index of sugar-containing solutions and other non-sugar solutions. Widely used in sugar, food, beverage and other industrial sectors as well as agricultural production and scientific research. It is suitable for the concentration measurement of various sauce (seasoning) products such as soy sauce and tomato sauce; it is suitable for the measurement of the sugar content of products with a lot of sugar such as jam, syrup and liquid sugar; it is suitable for the production line of fruit juice, refreshing drinks and carbonated drinks. Quality management, pre-delivery inspection, etc.; suitable for the process of fruit from planting to sales, it can be used to determine the exact harvest time, and to classify the sweetness. In addition, the determination of the concentration of pulp in the textile industry is also widely used.


The design principle of the sugar meter: when light enters another medium from one medium, refraction occurs, and the ratio of the sine of the incident angle is constant, and this ratio is called the refractive index. The content of soluble solids in fruit and vegetable juice is directly proportional to the refractive index under certain conditions (same temperature and pressure), so the concentration (sugar content) of fruit and vegetable juice can be obtained by measuring the refractive index of fruit and vegetable juice. Commonly used instruments are hand-held refractometers, also known as sugar mirrors and hand-held sugar content meters. By measuring the soluble solid content (sugar content) of fruits and vegetables, the quality of fruits and vegetables can be understood, and the maturity of fruits can be roughly estimated. The hand-held sugar meter is generally cylindrical. Put the sugar solution to be tested into the openable tank at the back, wipe it evenly, close the cover, and then point the sugar meter to the light, and read it from the front hole.


The difference between digital display sugar meter and hand-held refractometer:


1. Digital sugar content meter:


The digital display sugar meter is used to conveniently and quickly determine the weight percent concentration or refractive index in sugar-containing solutions. Widely used in sugar, food, beverage and other industrial sectors as well as agricultural production and scientific research.


Working principle: The sugar content meter mainly uses the refraction phenomenon when light enters another medium from one medium, and the ratio of the sine of the incident angle is constant, and this ratio is called the refractive index. The refractive index of the sugar solution can be measured by using the direct ratio between the content of soluble substances in the sugar solution and the refractive index under ordinary circumstances, so that the sugar concentration can be calculated by the sugar meter/refractometer.


2. Handheld refractometer


Hand-held refractometer is an instrument capable of measuring the refractive index nD and average dispersion nF-nC of transparent, translucent liquids or solids (among them, transparent liquids are mainly used). If the instrument is connected with a thermostat, it can measure the refractive index ND within the temperature range of 0~70. Refractive index and average dispersion are one of the important optical constants of substances, which can be used to understand the optical properties, purity, concentration and dispersion of substances. Because the hand-held refractometer instrument can measure the percentage of sugar content in the sucrose solution, the hand-held refractometer is used in a wide range of applications. It is one of the indispensable and commonly used equipment for factories, schools and research institutes such as industrial and geological surveys.

 

4 Brix meter

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