Paper quality discriminating machine
    10.
    发明授权
    Paper quality discriminating machine 有权
    纸质鉴别机

    公开(公告)号:US07167247B2

    公开(公告)日:2007-01-23

    申请号:US10417266

    申请日:2003-04-17

    CPC分类号: G07D7/1205

    摘要: The technique of the present invention enhances the stability of paper material identification of sheets. To achieve the above purpose, both short-wavelength light in the range of 370 nm and long-wavelength light in the range of 420 to 1000 nm are irradiated to paper to be identified in identifying the paper material. The identification is carried out, based on the difference in absorbance of the paper, which is obtained for each irradiated light. The absorbance of the paper varies according to the paper material, thereby enabling the identification of the paper material free from influence, which are caused by differences in manufacturing process, such as shading patterns. In addition, the simultaneous use of the short-wavelength light and the long-wavelength light declines influence on the absorbance, which are caused by environmental factors, such as humidity and deterioration of sheets, thereby resulting in stable identification of the paper material.

    摘要翻译: 本发明的技术提高了纸张材料识别的稳定性。 为了实现上述目的,将在370nm范围内的短波长光和420-1000nm范围内的长波长光照射在识别纸材时要识别的纸上。 基于对于每个照射的光获得的纸的吸光度差进行识别。 纸张的吸光度根据纸张材料而变化,从而能够识别由于制造过程中的差异(如阴影图案)而引起的纸张材料的影响。 此外,短波长光和长波长光的同时使用对由诸如湿度和片材劣化等环境因素引起的吸光度的影响降低,从而导致纸材的稳定识别。