公开(公告)号：US20030024301A1

公开(公告)日：2003-02-06

申请号：US10187584

申请日：2002-07-02

申请人： Metso Paper Automation Oy

发明人： Jussi Graeffe ,  Timo Saikanmaki ,  Mauri Ojala ,  Jari Koivu ,  Hannu Moisio

IPC分类号： G01B007/02 ,  G01B007/04 ,  G01B013/04 ,  D21F013/00 ,  G01J003/46 ,  G01N005/02 ,  G01B015/02 ,  G01B121/04

CPC分类号： G01B21/08 ,  G01B11/0691 ,  G01B2210/42 ,  Y10S162/06

摘要： The measuring device comprises at least one measuring head having a reference part, which comprises a reference surface against which the moving web is supported. The reference surface comprises a measuring area in the inside of which the property of the web is measured. The reference part is arranged in connection with the measuring head in such a way that below the reference part, there is a substantially open air space. The measuring head comprises means for generating negative pressure in the air space below the reference part, and the reference part comprises holes formed through it, in such a way that the negative pressure generated in the air space affects through the reference part the space between the reference surface and the moving web in such a way that the web is supported against the reference surface substantially over the whole area of the measuring area.

摘要翻译： 测量装置包括至少一个具有参考部分的测量头，该测量头包括支撑移动腹板的参考表面。 参考表面包括在其内部测量幅材的性质的测量区域。 参考部件与测量头相关联地布置成使得在参考部分下方具有基本上敞开的空气空间。 测量头包括用于在参考部分下方的空气空间中产生负压的装置，并且参考部分包括通过其形成的孔，使得在空气空间中产生的负压通过参考部分影响 参考表面和移动幅材，使得幅材基本上在测量区域的整个区域上被支撑在参考表面上。