Method for detecting solid density and densitometer using the method
A density, solid technology, applied in the direction of material analysis by measuring buoyancy, can solve the problems of high cost, complex circuit, large volume, etc., and achieve the effect of simple measurement, good linearity and high accuracy
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[0017] The basis of embodiment method is:
[0018] In water, because the buoyancy force experienced by objects with high density accounts for a small proportion of gravity, while the buoyancy force experienced by objects with low density accounts for a large proportion of gravity, such as the difference between the weight of gold in water and the weight in air is small , The difference between the weight of plastic in water and the weight in air is large.
[0019] Based on the above principles, we indirectly obtain information related to the density of an object by measuring the ratio of the weight of the object in water (wet weight) to the weight in the air (dry weight).
[0020] This principle can be understood with the following formula:
[0021] G 湿 / G 干 =(G 干 -F 浮力 ) / G 干 =(ρV-ρ 水 V) / ρV
[0022] =(ρ-1) / ρ
[0023] In the formula:
[0024] G 湿 The wet weight of the object (immersed in water) G 干 dry weight of an object (in air)
[0025] f 浮力 The buoya...
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