Method and device for determining the density of a stream of fib

Details Method and device for determining the density of a stream of fib Method and device for determining the density of a stream of fib

1994-12-02

1996-10-22

Bahr, Jennifer

Tobacco

Cigar or cigarette making

Molding or forming

131905, A24C 514

Patent

active

055666868

ABSTRACT:
To determine the density of a stream of fibrous material on a cigarette manufacturing machine, two different measurements are performed, the first of which is capacitive and supplies a first signal as a function of the density of the dry component and of the density of the liquid in the stream of fibrous material, and the second of which is optical and supplies a second signal indicating the density of the dry component; the second signal is combined with the first signal to obtain a third signal indicating the density of the liquid in the stream of fibrous material; and, from the third and second signals, a fourth signal is obtained indicating the density of the stream of fibrous material as the sum of the density of the dry component and of the liquid in the stream of fibrous material.

REFERENCES:
patent: 1878109 (1932-09-01), Clark
patent: 2535027 (1950-12-01), Anderson
patent: 4045657 (1977-08-01), Falke
patent: 4942363 (1990-07-01), Lowitz

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