公开(公告)号：US20100319866A1

公开(公告)日：2010-12-23

申请号：US12810365

申请日：2008-12-30

Applicant: Marko Avikainen ,  Petri Niemi ,  Heikki Kettunen ,  Markku Mantyla ,  Heimo Keranen

Inventor： Marko Avikainen ,  Petri Niemi ,  Heikki Kettunen ,  Markku Mantyla ,  Heimo Keranen

IPC: D21F11/00 ,  G01B11/06 ,  D21F7/00

CPC classification number: G01B11/2522 ,  D21G9/0027 ,  G01B11/2509 ,  G01B11/303 ,  G01N2021/8663 ,  G06T7/0004 ,  G06T2207/30124

Abstract: Optical radiation sources functioning on different optical bands radiate on different optical bands and focus optical radiation on a region in a web surface as pulses in such a manner that illumination areas of the pulses overlap on the plane of the web. At most one optical radiation band is focused on the web from the direction of the normal. The spatial intensity distribution of at least one optical band differs from the uniform distribution and the intensity distributions of at least two different optical bands differ from one another in a predetermined manner. A camera forms still images of the web surface region on each optical radiation band. An image-processing unit determines the surface topography of the web on the basis of the images. In addition, a controller may control the paper manufacturing process on the basis of the determined surface topography.

Abstract translation: 在不同光带上起作用的光辐射源辐射在不同的光学带上，并将光辐射聚焦在网表面上的区域上，使脉冲的照明区域在网的平面上重叠。 最多一个光辐射带从正常方向聚焦在幅材上。 至少一个光带的空间强度分布与均匀分布不同，并且至少两个不同光带的强度分布以预定方式彼此不同。 相机在每个光辐射带上形成网页表面区域的静止图像。 图像处理单元基于图像来确定幅材的表面形貌。 此外，控制器可以基于所确定的表面形貌来控制纸张制造过程。

公开(公告)号：US08444821B2

公开(公告)日：2013-05-21

申请号：US12810365

申请日：2008-12-30

Applicant: Marko Avikainen ,  Petri Niemi ,  Heikki Kettunen ,  Markku Mäntylä ,  Heimo Keränen

Inventor： Marko Avikainen ,  Petri Niemi ,  Heikki Kettunen ,  Markku Mäntylä ,  Heimo Keränen

IPC: G01N21/89 ,  G01B11/30 ,  G01B11/25 ,  D21F7/06 ,  G06T7/00

CPC classification number: G01B11/2522 ,  D21G9/0027 ,  G01B11/2509 ,  G01B11/303 ,  G01N2021/8663 ,  G06T7/0004 ,  G06T2207/30124

Abstract: Optical radiation sources functioning on different optical bands radiate on different optical bands and focus optical radiation on a region in a web surface as pulses in such a manner that illumination areas of the pulses overlap on the plane of the web. At most one optical radiation band is focused on the web from the direction of the normal. The spatial intensity distribution of at least one optical band differs from the uniform distribution and the intensity distributions of at least two different optical bands differ from one another in a predetermined manner. A camera forms still images of the web surface region on each optical radiation band. An image-processing unit determines the surface topography of the web on the basis of the images. In addition, a controller may control the paper manufacturing process on the basis of the determined surface topography.

Abstract translation: 在不同光带上起作用的光辐射源辐射在不同的光学带上，并将光辐射聚焦在网表面上的区域上，使脉冲的照明区域在网的平面上重叠。 最多一个光辐射带从正常方向聚焦在幅材上。 至少一个光带的空间强度分布与均匀分布不同，并且至少两个不同光带的强度分布以预定方式彼此不同。 相机在每个光辐射带上形成网页表面区域的静止图像。 图像处理单元基于图像来确定幅材的表面形貌。 此外，控制器可以基于所确定的表面形貌来控制纸张制造过程。