Petrol and diesel density meter High diesel density meter accuracy 0.700 0.750 A specific gravimeter

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is an instrument used to measure the density of a liquid, according to Archimedes's law and the condition that an object is in balance when it floats on a liquid surface. It is a sealed glass tube with a uniform thickness at one end and a calibrated paper on the inner wall. The scale is irregular and sparse at the top and dense at the bottom. The other end is slightly enlarged into a bubble shape with small lead particles inside, which allows the glass tube to submerge vertically into the liquid being tested to a sufficient depth and to float stably in the liquid. That is, when shaken, it can automatically return to a vertical static position. When a specific gravimeter floats in a liquid, its own gravity is equal to the gravity of the liquid it moves. Thus, immersing in different liquids at different depths results in different pressures, and the specific gravimeter uses this relationship to

calibrate.