Valmet Automation Oy

Metso Automation Oy

Marko Toskala

Markku Mäntylä

Ismo Mäkelä

Antti Heikkinen

Pekka Suopajärvi

Mikko Lassila

Tero O Kokko

Mikko V Heikkilä

Kari Veikkolainen

Mikko Talonen

Kari Söder

Ismo Makela

Markku Mantyla

Markku MÄNTYLÄ

Ismo MÄKELÄ

Tero Kokko

Measurement apparatus including an optical sensor, which performs repeatedly transmission measurements through moving sheet of paper or board at at least one wavelength band dominantly absorbed by water, at at least one wavelength band dominantly absorbed by cellulose. The apparatus also includes an X-ray sensor, which performs repeatedly transmission measurements through the moving sheet of paper or board with photons of electromagnetic radiation (1 keV to 10 keV). The apparatus comprises a data processing unit, which receives signals with information on intensities of the optical and X-ray radiations passed through the sheet from the optical sensor and the X-ray sensor, and determines, based on the information, all of the following of the moving sheet: the dry stuff content as a function of the cellulose mass per unit area of the sheet, water mass per unit area of the sheet and the ash mass per unit area of the sheet.

Measurement apparatus and measurement method

A topographical imaging device is placable after a creping process which causes folds to the tissue sheet and the topographical imaging device provides image data having three-dimensional information on the tissue sheet. A data processing device determines, on the basis of a shape of a cross section of at least one fold of creping of the tissue sheet, at least one of the following: thickness of the tissue sheet, softness of the tissue sheet.

Measurement of tissue paper

Control equipment for the manufacture of corrugated cardboard. The manufacturing equipment includes a gluing unit, a sensor arrangement and actuator equipment. The actuator equipment is adapted to adjust the moisture on a first surface of a liner on the basis of measurements taken by the sensor arrangement for gluing the liner by its first surface to a fluting paper.

Method and equipment for control and manufacture of corrugated cardboard

One measuring part of a traversing measuring unit measures at least one characteristic of a web with a first radiation type from a plurality of measuring locations during a traversing movement at successive moments in time. At least two measuring parts of an array measuring unit measure at least one characteristic of the web with another radiation type during each traversing movement at a plurality of different moments in time by directing the measurement to a plurality of measuring locations in the web at each moment in time. A signal processing unit is arranged to estimate at least one characteristic measured by the traversing measuring unit with at least one measurement of the array measuring unit.

Web measurement

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Orivesi, Finland

Marko Toskala