ARRANGEMENT FOR HYDRODYNAMIC MEASURING OF DENSITY Russian patent published in 2006 - IPC G01N9/26 

FIELD: the invention refers to measuring technique particularly to flowing hydrodynamic density meters and may be used for measuring density of various mediums including commercial accounting with suppliers of fuel.

SUBSTANCE: the essence of the arrangement is in that the velocity of medium is measured with the method of zero-point difference of pressure and with the method of variable difference pressure velocity thrust is measured with the aid of a narrowing arrangement in working conditions of possible continuous changing. At measuring the velocity the medium passing through the first measuring site is not subjugated to compression and expansion.

EFFECT: essential expansion of the range of measurements, absence of leakage allows to measure velocity with maximum and identical accuracy on the whole range of measurements.

1 dwg