公开(公告)号：US09797712B2

公开(公告)日：2017-10-24

申请号：US14441420

申请日：2013-10-09

Applicant: Sikora AG

Inventor： Werner Blohm ,  Harald Sikora

IPC: G01B11/14 ,  G01B11/02 ,  G01B11/10

CPC classification number: G01B11/14 ,  G01B11/028 ,  G01B11/105

Abstract: A method for determining the position of at least one edge of an object, in particular a strand, comprises illuminating the object using light from at least one coherent light source, wherein diffraction borders are generated on both geometric boundaries of the shadow caused by the object. The method also includes recording the spatial intensity profile of at least one diffraction border using at least one single or multi line optical sensor, differentiating the at least one recorded intensity profile with respect to location and plotting it using a squared location axis, and comparing the at least one recorded intensity profile, differentiated with respect to location and plotted using a squared location axis, to at least one periodic reference intensity profile. The position of at least one edge of the object is determined on the basis of the completed comparison.

公开(公告)号：US20150268034A1

公开(公告)日：2015-09-24

申请号：US14441420

申请日：2013-10-09

Applicant: SIKORA AG

Inventor： Werner Blohm ,  Harald Sikora

IPC: G01B11/14 ,  G01B11/10

CPC classification number: G01B11/14 ,  G01B11/028 ,  G01B11/105

Abstract: A method for determining the position of at least one edge of an object, in particular a strand, comprises illuminating the object using light from at least one coherent light source, wherein diffraction borders are generated on both geometric boundaries of the shadow caused by the object. The method also includes recording the spatial intensity profile of at least one diffraction border using at least one single or multi line optical sensor, differentiating the at least one recorded intensity profile with respect to location and plotting it using a squared location axis, and comparing the at least one recorded intensity profile, differentiated with respect to location and plotted using a squared location axis, to at least one periodic reference intensity profile. The position of at least one edge of the object is determined on the basis of the completed comparison.

Abstract translation: 用于确定物体，特别是股线的至少一个边缘的位置的方法包括使用来自至少一个相干光源的光照射物体，其中衍射边界在由物体引起的阴影的两个几何边界上产生 。 该方法还包括使用至少一个单线或多线光学传感器来记录至少一个衍射边界的空间强度分布，使至少一个记录的强度分布相对于位置区分，并使用平方位置轴进行绘制，并将 将至少一个相对于位置区分并且使用平方位置轴绘制的记录强度分布映射到至少一个周期性参考强度分布。 基于完成的比较来确定对象的至少一个边缘的位置。