公开(公告)号：US5118195A

公开(公告)日：1992-06-02

申请号：US579462

申请日：1990-09-10

Applicant: William Dobbie

Inventor： William Dobbie

IPC: G01N21/892

CPC classification number: G01N21/8921 ,  G01N2021/8887 ,  G01N2021/8912 ,  G01N2201/102

Abstract: The invention features a real time system for detecting streaks or scratches which occur substantially parallel to the direction of motion of a continuous web of material. The system can also be used to inspect sheets of material that may have been cut from such webs. An energy source such as an incandescent lamp or a bank of lamps generates electromagnetic energy that impinges upon the continuous web of material. CCD cameras receive reflected specular radiation from the web and generate video signals. The CCD cameras are disposed opposite the energy source and within 5.degree. of the plane perpendicular to the continuous web plane. Alternatively, the energy sources may transmit energy through the web material, which energy can be received by the CCD cameras. A processor is connected to the CCD cameras to process the video signals and to generate an enhanced signal-to-noise ratio signal that represents a streak or scratch on the web.

Abstract translation: 本发明的特征在于一种用于检测基本上平行于连续卷材的运动方向发生的条纹或划痕的实时系统。 该系统还可以用于检查可能已经从这种网上切割的材料的片材。 诸如白炽灯或一束灯的能量源产生撞击在连续的材料网上的电磁能。 CCD摄像机从网络接收反射的镜面辐射并产生视频信号。 CCD摄像机与能量源相对设置，垂直于连续卷筒纸平面的平面的5度内。 或者，能量源可以通过幅材材料传输能量，这些能量可由CCD照相机接收。 处理器连接到CCD摄像机以处理视频信号并产生增强的信噪比信号，其表示网上的条纹或划痕。