Considered vibroamplitude method of measurements bulk density of granular medium. The point of the matter of the method is based on the dependence of amplitude forced vibration of mechanical resonator, for example fixed at the end of elastic tube, fro mthe mass, and consequently density placing in it medium. For the obtaining mathematical models vibroamplitude densimeter composed and described differential equation of movement mechanical resonator's filling up granular medium. Besides from the known work, resonator constructs as beam, constant section with level spreading mass on longest.
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