The NextGen Digital Densimeter Systems work on Archimedes’ principle, which states that the upward buoyant force exerted on an object immersed in a fluid equals the weight of the fluid displaced by the object. In other words, the densimeter measures the weight of an object in air, and then in liquid, and by comparing the two values, it determines the density of the liquid.

The densimeter consists of a balance beam with a sample holder on one end and a reference weight on the other. The sample holder can be filled with the liquid whose density is to be measured. The balance beam is then immersed in a container filled with a reference liquid of known density, usually water. The densimeter takes the weight of the sample in air, and then it is immersed in the reference liquid. The weight reading changes as the buoyant force on the sample changes. The densimeter then calculates the density of the sample by comparing the two readings.

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