Method and apparatus for electromagnetic detection for use in the manufacture of fibrous web
    1.
    发明授权
    Method and apparatus for electromagnetic detection for use in the manufacture of fibrous web 有权
    用于制造纤维网的电磁检测方法和装置

    公开(公告)号:US09024259B2

    公开(公告)日:2015-05-05

    申请号:US12673333

    申请日:2008-08-12

    摘要: An apparatus for measuring parameters, such as moisture content or basis weight, of a fibrous web, e.g. paper or non-wovens, comprises optical elements and a wavelength selection device for selectively directing a beam of electromagnetic radiation comprising wavelengths in at least the mid infrared (MIR) spectral range through the web; an element, such as a beam stop, arranged in the path of electromagnetic radiation emerging from the web, for separating directly transmitted from scattered electromagnetic radiation; a collector for collecting the scattered radiation; and at least one detector for detecting the scattered radiation collected by the collector.

    摘要翻译: 用于测量纤维网的参数例如水分含量或基重的装置,例如水分含量或基重。 纸或非织造物包括光学元件和波长选择装置,用于选择性地引导包括至少中红外(MIR)光谱范围内的波长的电磁辐射束通过幅材; 布置在从幅材出射的电磁辐射的路径中的用于分离直接从散射电磁辐射传播的元件,例如光束挡块; 用于收集散射辐射的收集器; 以及用于检测由收集器收集的散射辐射的至少一个检测器。

    Method and Apparatus for Electromagnetic Detection for Use in the Manufacture of Fibrous Web
    2.
    发明申请
    Method and Apparatus for Electromagnetic Detection for Use in the Manufacture of Fibrous Web 有权
    用于制造纤维网的电磁检测方法和装置

    公开(公告)号:US20110303848A1

    公开(公告)日:2011-12-15

    申请号:US12673333

    申请日:2008-08-12

    IPC分类号: G01N21/84 G01N21/47

    摘要: An apparatus for measuring parameters, such as moisture content or basis weight, of a fibrous web, e.g. paper or non-wovens, comprises optical elements and a wavelength selection device for selectively directing a beam of electromagnetic radiation comprising wavelengths in at least the mid infrared (MIR) spectral range through the web; an element, such as a beam stop, arranged in the path of electromagnetic radiation emerging from the web, for separating directly transmitted from scattered electromagnetic radiation; a collector for collecting the scattered radiation; and at least one detector for detecting the scattered radiation collected by the collector.

    摘要翻译: 用于测量纤维网的参数例如水分含量或基重的装置,例如水分含量或基重。 纸或非织造物包括光学元件和波长选择装置,用于选择性地引导包括至少中红外(MIR)光谱范围内的波长的电磁辐射束通过幅材; 布置在从幅材出射的电磁辐射的路径中的用于分离直接从散射电磁辐射传播的元件,例如光束挡块; 用于收集散射辐射的收集器; 以及用于检测由收集器收集的散射辐射的至少一个检测器。