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公开(公告)号：US20210239583A1
公开(公告)日：2021-08-05
申请号：US17052537
申请日：2019-04-24
Applicant: Valmet Automation Oy
Inventor： Markku Mäntylä , Jussi Graeffe , Anna-Leena Erkkilä
Abstract: According to an example aspect of the present invention, there is provided a method, comprising: controlling suction with predetermined force in a known measurement area to a moving cardboard or paper web in a manufacturing process, detecting on-line measurement information on deviation of the moving cardboard or paper web in the manufacturing process caused by the suction with predetermined force in the known measurement area, and determining elastic modulus of the moving cardboard or paper web in the manufacturing process on the basis of the measured deviation.
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公开(公告)号：US11828736B2
公开(公告)日：2023-11-28
申请号：US17052537
申请日：2019-04-24
Applicant: Valmet Automation Oy
Inventor： Markku Mäntylä , Jussi Graeffe , Anna-Leena Erkkilä
CPC classification number: G01N3/20 , B65H23/044 , D21F1/48 , D21G9/0027 , G01B11/06 , G01N33/346 , B65H2511/23 , B65H2515/37 , B65H2553/10 , B65H2553/45 , G01N2203/0046 , G01N2203/0075 , G01N2203/0282
Abstract: According to an example aspect of the present invention, there is provided a method, comprising: controlling suction with predetermined force in a known measurement area to a moving cardboard or paper web in a manufacturing process, detecting on-line measurement information on deviation of the moving cardboard or paper web in the manufacturing process caused by the suction with predetermined force in the known measurement area, and determining elastic modulus of the moving cardboard or paper web in the manufacturing process on the basis of the measured deviation.
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公开(公告)号：US20150268166A1
公开(公告)日：2015-09-24
申请号：US14439259
申请日：2013-10-30
Applicant: VALMET AUTOMATION OY
Inventor： Markku Mäntylä
IPC: G01N21/57
CPC classification number: G01N21/57 , G01N21/47 , G01N21/86 , G01N21/8901 , G01N33/346 , G01N2201/06113 , G01N2201/062 , G01N2201/069 , G01N2201/12
Abstract: An apparatus of measuring a small scale property of a sheet, the apparatus includes: a first light source for illuminating the sheet moving with respect to the illumination; a detector for forming a total intensity of reflection of the light illuminating the moving sheet by each detection; a detected dimension of the reflection on the sheet in the direction of the movement being limited the same as or shorter than a lowest acceptable spatial resolution of the measurement; a duration of each detection being equal to or shorter than the lowest acceptable spatial resolution divided by a speed of the moving sheet; and a processing unit for forming information about a small scale variation of gloss of the sheet on the basis of the detections by the detector.
Abstract translation: 一种测量片材小尺度特性的装置，该装置包括：第一光源，用于照亮片材相对于照明物移动; 检测器，用于通过每次检测形成照亮所述移动片材的光的总反射强度; 在片材上的移动方向上的反射的检测尺寸被限制为与测量的最低可接受的空间分辨率相同或更短; 每个检测的持续时间等于或短于最低可接受空间分辨率除以移动片材的速度; 以及处理单元，用于基于检测器的检测来形成关于片材的光泽度的小规模变化的信息。
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公开(公告)号：US11692943B2
公开(公告)日：2023-07-04
申请号：US17707532
申请日：2022-03-29
Applicant: VALMET AUTOMATION OY
Inventor： Kari Veikkolainen , Marko Toskala , Markku Mäntylä
IPC: G01N21/86 , G01N21/31 , G01N21/59 , G01N23/083 , G01N23/16
CPC classification number: G01N21/86 , G01N21/31 , G01N21/59 , G01N23/083 , G01N23/16 , G01N2021/8663
Abstract: 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.
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公开(公告)号：US10969343B2
公开(公告)日：2021-04-06
申请号：US16316327
申请日：2017-07-05
Applicant: VALMET AUTOMATION OY
Inventor： Markku Mäntylä
Abstract: A measuring method includes: illuminating a silicone-coated layer using a light source; and imaging light from the light source that is specularly reflected from the silicone-coated layer to form an image of a surface of the silicone-coated layer. The method further includes detecting pores and/or voids in a silicone coating of the silicone-coated layer from the image; determining a silicone coverage of the silicone-coated layer based on the detected pores and/or voids; and determining a release force of the silicone-coated layer based on the silicone coverage.
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Patent Agency Ranking
公开(公告)号：US10043256B2
公开(公告)日：2018-08-07
申请号：US14649037
申请日：2013-11-26
Applicant: VALMET AUTOMATION OY
Inventor： Marko Toskala , Ismo Mäkelä , Markku Mäntylä
IPC: G06T7/00 , B31F1/12 , D21F7/06 , D21G9/00 , G01N21/89 , G01B11/30 , G01B11/06 , G06T15/04 , G06T7/593
Abstract: 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.
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公开(公告)号：US11841357B2
公开(公告)日：2023-12-12
申请号：US17004697
申请日：2020-08-27
Applicant: VALMET AUTOMATION OY
Inventor： Markku Mäntylä , Pekka Suopajärvi
IPC: G01N21/3559 , G01N33/34 , G01N21/86 , D21F7/00 , D21F7/06
CPC classification number: G01N33/346 , D21F7/003 , D21F7/06 , G01N21/3559 , G01N21/86 , G01N2021/8663
Abstract: A measurement apparatus of a moving paper web, includes an optical radiation source that outputs optical radiation toward a scattering element of the measurement apparatus. The scattering element scatters the optical radiation, and a transmitting surface of the scattering element directs the optical radiation in a scattered manner toward the moving paper web. A distance between said transmitting surface of the scattering element and a surface of the paper web is known, and the transmitting surface and a detector of the apparatus are on opposite sides of the paper web. The detector receives at least a part of the optical radiation, which is side-scattered from the moving paper web. The detector determines a moisture value and a dry weight of the paper web on the basis of spectral information on the received optical radiation and the known distance.
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公开(公告)号：US10444143B2
公开(公告)日：2019-10-15
申请号：US15320260
申请日：2015-06-24
Applicant: VALMET AUTOMATION OY
Inventor： Markku Mäntylä , Pekka Suopajärvi , Jussi Tenhunen , Janne Paaso
Abstract: Optical multi-channel measurement unit for a process measurement includes first ends for receiving optical radiation from the optical radiation source, and second ends for outputting the optical radiation for illuminating the at least one object. Optical detectors receive optical radiation from at least one measurement channel via at least one optical filter and convert an intensity of the optical radiation to an electrical signal. A movement mechanism causes, for filtering the wavelengths of the optical radiation propagating between detectors and the optical measurement channels through the optical filters, at least one of the following: movement inside at least one optical filter and movement between the filters and the detectors.
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公开(公告)号：US10369761B2
公开(公告)日：2019-08-06
申请号：US15121699
申请日：2015-02-26
Applicant: VALMET AUTOMATION OY
Inventor： Markku Mäntylä , Mikko Lassila , Mikko Talonen , Kari Söder , Marko Toskala
Abstract: 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.
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公开(公告)号：US09745697B2
公开(公告)日：2017-08-29
申请号：US14894463
申请日：2014-05-28
Applicant: VALMET AUTOMATION OY
Inventor： Markku Mäntylä
IPC: D21F7/00 , B65H7/02 , D21F7/06 , G01B7/06 , G01B11/06 , D21G9/00 , B05C11/10 , G01G17/02 , G01N21/86 , G01N33/34
CPC classification number: D21F7/003 , B05C11/1015 , B65H7/02 , D21F7/06 , D21G9/0009 , G01B7/06 , G01B11/06 , G01B11/0691 , G01G17/02 , G01N21/86 , G01N33/34
Abstract: An apparatus including a caliper measuring sensor arrangement, a mass measuring sensor arrangement, and a stabilizing arrangement. The caliper measuring sensor arrangement measures caliper of the web. The mass measuring sensor arrangement measures at least one of the following: a basis weight of the web, a moisture content, a water weight, dry weight of the web. The stabilizing arrangement stabilizes the web. The stabilizing arrangement including at least a part of the mass measuring sensor arrangement.
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