In today's densitometer industry, there are many types of densitometers, which are dazzling. The density meter is classified into online density meter and benchtop electron density meter. According to the shape, it is divided into a glass tube density meter and a sink type density meter. The shape function is different, and the working principle is different. Among them, the principle of the sink type electronic density meter is a device combining the new instrument according to the density meter Archimedes principle buoyancy method.
What is the density meter Archimedes principle buoyancy method The Archimedes principle is the Archimedes' law, the content is: an object immersed in a static fluid is subjected to a buoyancy, the size of which is equal to the weight of the fluid discharged by the object, the direction Vertically upwards and through the centroid of the discharged fluid. Because there is a physicist named Archimedes, he is named after him. This has something to do with the densitometer. Based on this, the density of the object appears, and the instrument for testing the density of the object appears.
The buoyancy method is a physical method for determining the density of solids and liquids.
How to calculate the density meter using the Archimedes principle, through the derivation and transformation of the buoyancy and density calculation formula to form the equation, first use the high-precision electronic analytical balance to calculate the weight of the sample to be tested in the air (W1) and in the water The weight (W2), and calculate the value of W1-W2, the density of water defaults to Ï=1g/cm3, and the density value of the sample can be calculated by establishing the equation with V sample=V drainage: Ï=W1/(W1) -W2) xÏ water, this is the solid formula. If the sample to be tested is a liquid, first use a standard block of known volume and density as a reference, and calculate the formula by the density of water Ï water and the weight of the standard block in air (W1) water (W2): Ï Liquid = (W1-W2) / standard block V xÏ standard.
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