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Title:
MEASURING ARRANGEMENT IN SHORTENED DRY END OF TISSUE MACHINE
Document Type and Number:
Japanese Patent JP2007284863
Kind Code:
A
Abstract:

To measure properties of a paper web by using one or more reflectance sensors emitting measuring beams onto the web and receiving the beams reflected from the web, from which the web properties are deduced.

The web is supported on a web support during the measurement, such as on a passive or active airfoil or fabric. One or more measurement sensor(s) can be integrated within an active airfoil. These sensors have plural optical fibers and the sensing ends of the optical fibers are arranged in the airfoil such that the sensing ends of the fibers face the moving paper web through one or more apertures in a web-supporting panel of the airfoil.

COPYRIGHT: (C)2008,JPO&INPIT


Inventors:
LINDEN ANDERS TOMMY
Application Number:
JP2007118318A
Publication Date:
November 01, 2007
Filing Date:
April 27, 2007
Export Citation:
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Assignee:
METSO PAPER KARLSTAD AB
International Classes:
D21H27/00; G01N21/35; A47K10/16; B65H18/02; B65H18/26; B65H75/10; B65H75/18; B65H75/28; D21F3/00; D21F5/00; D21F7/00; D21F11/14; D21G9/00; G01N21/17
Domestic Patent References:
JP2000513100A2000-10-03
JPH05196460A1993-08-06
JPH10245789A1998-09-14
Foreign References:
US20020060036A12002-05-23
WO2001044568A12001-06-21
Attorney, Agent or Firm:
吉武 賢次
永井 浩之
岡田 淳平
勝沼 宏仁
名塚 聡