Method and apparatus for inspecting and controlling tipping pape

Details Method and apparatus for inspecting and controlling tipping pape Method and apparatus for inspecting and controlling tipping pape

1992-12-29

1994-08-30

Bahr, Jennifer

Tobacco

Cigar or cigarette making

Including perforating

131905, A24C 534, A24C 500

Patent

active

053418247

ABSTRACT:
The perforation of tipping paper on a high-speed perforation line is monitored and controlled by an electro-optic detection and data processing system which produces a signal related in value to an expected pressure drop through the paper based on calculations relating the inverse square of average perforation area to pressure drop. In one embodiment, a strobe light and camera are arranged on opposite sides of the tipping paper strip and provide an image signal to a vision processor. In another embodiment, a CCD line sensor located across the width of the strip is scanned to provide a signal related to a profile of light transmitted through the tipping paper.

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R. W. Dwyer, K. A. Cox, and J. E. Bickett, "Sources of Pressure-Drop and Ventilation Variability in Cigarettes", in Recent Advances in Tobacco Science vol. 13, ed. Dale E. Mathis, (Greensboro, N.C.: Tobacco Chemists Research Conference, 1987), pp. 82-118.

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