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公开(公告)号：US5305392A
公开(公告)日：1994-04-19
申请号：US2892
申请日：1993-01-11
IPC分类号： B41F33/00 , G01N21/89 , G01N21/93 , G01N21/956 , G06K9/00
CPC分类号： B41F33/0036 , G01N21/89 , G01N2021/8861 , G01N2021/8887 , G01N2021/936 , G01N21/956 , G01N2201/102
摘要： A modular system and method using the system for the high speed high resolution inspection of printed webs are provided. Each module inspects one lane of a printed web for print defects. Each gray scale or bipolar gray scale gradient pixel value of a digitally converted input image is compared to the minimum and maximum threshold values of the image template by a real-time digital signal processor. The image template is created in a secondary non-real-time processor by producing a statistical representation of a number of input images. The image template is desensitized to longitudinal and transverse jitter of the printed web so that jitter is not identified by the system as a print defect. The user is signaled if actual print defects exist and the lanes in which the defects exist are identified.
摘要翻译： 提供了一种使用该系统进行印刷网的高速高分辨率检查的模块化系统和方法。 每个模块检查印刷网的一个通道是否有打印缺陷。 通过实时数字信号处理器将数字转换的输入图像的每个灰度级或双极性灰度级梯度像素值与图像模板的最小和最大阈值进行比较。 通过产生多个输入图像的统计表示，在次要非实时处理器中创建图像模板。 图像模板对印刷的卷材的纵向和横向抖动敏感，使得抖动不被系统识别为打印缺陷。 如果存在实际的打印缺陷并识别存在缺陷的通道，则用户被通知。
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公开(公告)号：US5573692A
公开(公告)日：1996-11-12
申请号：US314463
申请日：1994-09-28
CPC分类号： A24F47/008
摘要： A thin film layer of primarily platinum is deposited onto a ceramic substrate and electrical connections are applied to the platinum layer to form a heater. In a preferred embodiment, the electrical connections comprise two electrically conductive posts fixed to the ceramic substrate at a first end and electrically contacting the platinum heater layer near this first end. Preferably, the heater layer forms mounds at each post and a thinner region therebetween, resulting in a resistance profile which concentrates heating in the thinner region and reduces undesired heating of the post area. Such heaters can be employed individually or in conjunction with other similar heaters.
摘要翻译： 将主要为铂的薄膜层沉积在陶瓷衬底上，并将电连接施加到铂层以形成加热器。 在优选实施例中，电连接包括在第一端处固定到陶瓷基板的两个导电柱，并在该第一端附近电接触铂加热器层。 优选地，加热器层在每个柱上形成墩，在它们之间形成更薄的区域，导致电阻分布，其将加热集中在较薄区域中，并减少了柱区域的不期望的加热。 这种加热器可以单独使用或与其它类似的加热器结合使用。
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