PROCESS MEASURING DENSITY OF LIQUID Russian patent published in 1997 - IPC

FIELD: measurement technology. SUBSTANCE: tested liquid os placed into U-shaped cell. Rarefaction is obtained in one of knees of cell with reaching of equality of pressure in other knee (measuring) to atmospheric one. Then pressure in first knee is increased, pressure of gas in measuring knee is kept constant. Measuring knee is tightly joined to upper end of calibrated capillary which is manometric tube of micromanometer. Changing volume of has phase in calibrated capillary one measures movement of level of liquid in measuring knee. Knowing constants of cell it will be easy to calculate value of density of liquid. EFFECT: enhanced authenticity of process. 1 dwg, 2 tbl