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    • 2. 发明授权
    • Printing system having optical supervision apparatus of a substrate
running web, particulary a paper web
    • 具有基板运行网的光学监视装置的打印系统,特别是纸幅
    • US5395027A
    • 1995-03-07
    • US940030
    • 1992-09-03
    • Bruno Erhardt
    • Bruno Erhardt
    • B41F33/14B41F33/18G01J1/02G01N21/89G01N21/892B65M26/02
    • B41F33/18
    • To provide a compact monitoring unit for substrate webs passing through a printing machine, typically paper webs, and thereby provide rapid response of damage control units, such as paper capturing rollers, small tears, fissures or holes in the substrate webs are sensed by locating an elongated light source (12) below the web, the light source extending beyond the lateral sides of the web to be supervised; an optical scanner (2) formed of a plurality of light guides (4) within a plastic block (5a) provides signals representative of light shining through damaged areas, and on the side of the web. The light guides then are bundled or compressed in a bundling or compression element (6), and the outputs thereof are applied to a charge coupled device sensor chip (7), directly, without intervention of optical systems, the charge coupled device being in turn connected to an evaluation and control unit which can provide "damaged web" signals to the damage control unit itself through a suitable output coupling.
    • 为了提供一个紧凑的监测单元,用于通过印刷机(通常是纸幅)的基底卷材,并且由此提供损伤控制单元(例如纸张捕获辊,小撕裂,裂缝或孔)的快速响应,通过定位 纤维网下方的细长光源(12),光源延伸超过纤维网的侧面以进行监督; 由塑料块(5a)内的多个光导(4)形成的光学扫描器(2)提供表示通过损坏区域照射的光的信号,并且在幅材的一侧上。 然后,光导束在捆扎或压缩元件(6)中被捆扎或压缩,并且其输出被直接施加到电荷耦合器件传感器芯片(7),而不需要光学系统的干预,电荷耦合器件依次 连接到评估和控制单元,其可以通过适当的输出耦合向损坏控制单元本身提供“损坏的网络”信号。