公开(公告)号：US5281819A

公开(公告)日：1994-01-25

申请号：US711521

申请日：1991-06-06

申请人： Richard G. Keffert ,  M. Jonell Kerkhoff ,  James E. Smous ,  Richard G. Keffert

发明人： Richard G. Keffert ,  M. Jonell Kerkhoff ,  James E. Smous ,  Richard G. Keffert

IPC分类号： G01B11/06 ,  G01N21/01 ,  G01B11/02 ,  G01N21/64

CPC分类号： G01B11/0658 ,  G01N2021/646

摘要： Apparatus and an associated method for nondestructively determining the thickness of a coating on a metal surface, such as the interior of a can. An object securing device holds the object being inspected. The inspection device includes a probe. Positioning apparatus is employed to permit insertion of the probe into inspecting relationship which in the case of a can would involve partial insertion of the probe into the can. A first section is inspected and sequentially through relative rotational and/or translational movement of the object being inspected additional portions of the object such as can ends may be inspected. A light beam is caused to impinge upon the section of the object being inspected and returned fluorescent light received by a detector positioned within the probe cooperates with processing means to determine the coating thickness. The system permits accurate determinations of coating thickness even when the metal surface has irregularities. The system may be employed on metal sheet including moving metal sheet. The probe may include mirrors and fiberoptic components. A suitable lens for focusing the returned light and a filter for excluding extraneous returned light from the detector preferably are employed. A container holder is also provided.

摘要翻译： 用于非破坏性地确定金属表面（例如罐的内部）上的涂层的厚度的装置和相关方法。 物体固定装置保持被检查物体。 检查装置包括探针。 使用定位装置来允许将探针插入到检查关系中，在关于罐的情况下将涉及将探针部分插入罐中的检查关系。 通过被检查对象的相对旋转和/或平移运动来检查和顺序地检查第一部分，可以检查对象的诸如罐端部的附加部分。 导致光束撞击被检查物体的部分，并且由位于探针内的检测器接收的返回荧光与处理装置协调以确定涂层厚度。 该系统即使当金属表面具有不规则性时，也能准确地确定涂层厚度。 该系统可以用于包括移动金属板的金属板上。 探头可以包括镜子和光纤组件。 优选地，使用用于聚焦返回光的合适透镜和用于从检测器排除外来返回光的滤光器。 还提供容器支架。