Method and apparatus for detecting and selecting foreign...

Details Method and apparatus for detecting and selecting foreign... Method and apparatus for detecting and selecting foreign...

A - Human Necessities

24

C

A24C 5/34 (2006.01) G01N 22/04 (2006.01)

Patent

CA 2416923

The invention relates to a method for detecting and selecting foreign parts in cigarettes, in which the tobacco is exposed in the vicinity of the cigarette maker to microwave radiation and both a signal SD relating to the tobacco density and a signal SF relating to the tobacco moisture are generated. The density signal SD and moisture signal SF are evaluated in combination with one another for the detection of the presence or absence of foreign parts in the tobacco.

L'invention concerne un procédé pour la détection et la sélection de corps étrangers dans des cigarettes. Selon l'invention, le tabac est soumis dans la zone de la machine à cigarettes à un rayonnement de micro-ondes et un signal SD relatif à la densité du tabac ainsi qu'un signal SF relatif à l'humidité du tabac sont générés. Le signal de densité SD et le signal d'humidité SF sont combinés l'un à l'autre et évalués afin de détecter la présence ou l'absence de corps étrangers dans le tabac.

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