公开(公告)号：EP2761282A1

公开(公告)日：2014-08-06

申请号：EP12790784.8

申请日：2012-09-25

申请人： Wipotec Wiege- und Positioniersysteme GmbH

发明人： LÜGHAUSEN, Kai, Mark ,  DOLL, Theodor

IPC分类号： G01N23/04 ,  G01N23/087

CPC分类号： G01N23/04 ,  G01N2223/635 ,  G01N2223/643

摘要： The invention relates to a method for detecting the structure of moving single items, in particular for detecting foreign particles in liquid or paste-like products, in which a single item (3) moved along a given direction is irradiated with wide-band X-rays, and in which along at least one predetermined stationary detection line (E
1 to E
m ) transverse to the movement direction the radiation that has passed through the single item (3) is detected at a plurality of sampling positions of the single item (3) in the movement direction. During a predetermined detection time interval, for each sampling position simultaneously a respective at least one first partial image for a first spectral section of the X-rays and a second partial image for a second spectral section of the X-rays or the entire spectrum of the X-rays is detected along the at least one detection line (E
1 to E
m ), and converted into partial image data. Associated with each of the at least two partial images is a number of discrete detection positions arranged along the detection line (E
1 to E
m ), said positions being arranged preferably alternately along the detection line (E
1 to E
m ). A value for the radiation energy in the relevant spectral section is determined at the detection positions associated with a partial image for generating the relevant partial image data. The partial image data of the at least one first and second image is combined by calculation to form a partial resulting image in order to improve the contrast in relation to predetermined characteristics of the structure of the single item (3) and the partial resulting images of all sampling positions are combined to form a resulting image. The invention further relates to a device for carrying out said method.

摘要翻译： 一种方法包括沿引导跨越对象的行进的方向上的预定的固定检测线宽带X射线发射，并在相对于所述检测线的对象的几个采样位置检测X射线。 传感器组成的检测线同时检测第一部分图像的X射线的第一光谱段和用于第二频谱段或X射线的整个频谱中的第二部分图像。 为了产生相关的部分图像数据，在相关的频谱段中的辐射能量的值被确定开采在与部分图像相关联的每个检测位置。 第一和第二图像的部分图像数据进行算术组合成部分输出的图像，并且所有采样位置的部分输出图像组合成一个输出图像。