Method of and apparatus for ascertaining the hardness of rod-sha

Details Method of and apparatus for ascertaining the hardness of rod-sha Method of and apparatus for ascertaining the hardness of rod-sha

1993-09-27

1994-09-20

Raevis, Robert

Measuring and testing

Hardness

By penetrator or indentor

131906, G01N 348

Patent

active

053478533

ABSTRACT:
The reliability of mechanical testing of the hardness of cigarettes with one or more pivotable weights is enhanced by modifying the results of such testing on the basis of signals which are obtained by optically scanning the diameters of successive cigarettes prior to mechanically induced deformation. Optical scanning is carried out by triangulation with a fixedly mounted measuring head. The signals which are obtained with mechanical testing can be further influenced by taking into consideration the moisture content and/or the temperature of tobacco in tested cigarettes.

REFERENCES:
patent: 3192389 (1965-06-01), Schmesmund
patent: 3850029 (1974-11-01), Swanson
patent: 4011950 (1977-03-01), McLoughlin et al.
patent: 4201475 (1980-05-01), Bodlaj
patent: 4311392 (1982-01-01), Yazaki et al.
patent: 4326542 (1982-04-01), Laszlo et al.
patent: 4567752 (1986-02-01), Labbe
patent: 4974443 (1990-12-01), Heitmann
patent: 5075559 (1991-12-01), Amir

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