Method and device for online measurement plasticizer content of continuous filter rod

摘要

Method for online measurement of a plasticizer in a rod continuous filter (7) in a machine for manufacturing filter rods with the following process steps: - measuring a displacement of resonance (A) and a widening of the line (B) with a microwave resonator (10) to the passage of a rod of continuous filter (7), - determining a mass per length of plasticizer from the measurement variables (a, B) of the microwave resonator, the method characterized by the steps of: - measuring (13) a reference mass of plasticizer applied time with the application (4) of the plasticizer (17) on the tow band filter, - determining a reference mass average per length of plasticizer from the measured mass applied over a period of time, - calculating average values ​​for the mass per length of plasticizer, as determined by the use of various bles measurement microwave resonator, along the same time period in which the reference mass of plasticizer is determined, - determining a deviation between the average value reference for the mass per length and the average mass per length and - correction of the mass per length determined from the measurement variables of the microwave resonator in accordance with the determined deviation.