METHOD FOR MEASURING THE VOLUME AND DETERMINING THE DENSITY OF POROUS MATERIALS Russian patent published in 2022 - IPC G01F17/00 G01N9/26 

FIELD: volumes measuring technique.

SUBSTANCE: invention relates to a technique for measuring volumes and determining the densities of porous bodies of arbitrary shape, different moisture content, as well as fractional composition, and can be used in all areas of research or application of porous objects. The volume of the body is calculated by the equation of a straight line obtained by constructing a calibration graph, along the abscissa of which the value of the change in the volume of air in the sample vessel is measured, and along the ordinate axis - the volume of the body corresponding to this change, and the straight line passes through two points with coordinates [ ; 0], when calibrating an empty vessel, and [ ; ] - corresponding to the characteristics of the reference body, where is the required volume of the body, and are the coefficients of the straight line equation, is the value of the change in the volume of air in the sample vessel, is the value of the change in the volume of air in the vessel for samples during calibration, is the volume of the reference body, the density of the porous body is determined by the formula .

EFFECT: invention increases the accuracy and manufacturability of the procedure for measuring the volume and determining the density of porous bodies of arbitrary shape, different humidity and fractional composition.

1 cl, 2 dwg