Patent ID: 8330473

Claim:
A method for the measurement of mass or density and/or for the measurement of the humidity in a plurality of portioned units in a non-metallic carrier material, comprising the steps of: generating at least one resonance mode in a spatially limited measurement area; analysing at least one variable of the at least one resonance mode; transporting the carrier material with the portioned units through the measurement area; measuring the at least one variable of the at least one resonance mode at a time when only the carrier material without portioned unit is in the measurement area, and at a time when the portioned unit is at least partially in the measurement area; subtracting the measured variable for the carrier material from the measurement values for the portioned unit; determining a value of the humidity and/or of the mass or density of the portioned unit from at least one difference by way of an input-output map, and characterised in that in case that the extension of the portioned units in the transportation direction is smaller than the extension of the spatial measurement area in the transportation direction, the analysing unit analyses the extremal one of the measurement values for the portioned unit which had occurred during the transportation of the portioned unit through the measurement area.