公开(公告)号：US5371584A

公开(公告)日：1994-12-06

申请号：US3581

申请日：1993-01-13

申请人： Hans-Jurgen Scheinhutte

发明人： Hans-Jurgen Scheinhutte

IPC分类号： B65H63/06 ,  G01N21/89 ,  G01N21/892 ,  G01N21/898 ,  G01N21/94 ,  G01N33/36 ,  G01B9/02

CPC分类号： G01N33/365 ,  B65H63/065 ,  G01N21/8915 ,  B65H2701/31 ,  G01N21/8806 ,  G01N21/94

摘要： For the detection of contaminants, a yarn or a thread is led through a zone of measurement, which is formed as a flat slit in an optically transparent body. This transparent body has outer surfaces for diffusely or non-diffusely reflecting light back into the body. Light is led into the body from several sources of light, such that the yarn is diffusely illuminated from all sides. The sources of light are arranged and adjusted such that the brightness of the yarn detected by a sensor is equal to the brightness of the yarn's background field. In this way, the measurement becomes independent of the yarn's thickness. Due to the use of a flat slit for receiving the yarn, the yarn can be inserted into the zone of measurement by the same procedures as they are used in conventional yarn cleaners.

摘要翻译： 为了检测污染物，将纱线或线引导通过在光学透明体中形成为平坦狭缝的测量区域。 该透明体具有将光反射回身体的漫反射或非漫反射的外表面。 光从几个光源引入人体，从而使纱线从各个方面漫射起来。 光源的布置和调整使得由传感器检测的纱线的亮度等于纱线背景场的亮度。 以这种方式，测量值与纱线的厚度无关。 由于使用用于接收纱线的扁平狭缝，可以通过与常规纱线清洁器中使用的相同的程序将纱线插入到测量区域中。

公开(公告)号：US4953265A

公开(公告)日：1990-09-04

申请号：US317299

申请日：1989-03-01

申请人： Hans-Jurgen Scheinhutte

发明人： Hans-Jurgen Scheinhutte

IPC分类号： G01N21/89 ,  D01G31/00 ,  G01N21/898

CPC分类号： D01G31/003

摘要： For detecting neps in a textile fiber fleece band transported along a transporting path through a carding machine a detecting device comprises a mechanism for illuminating the fiber fleece band on at least one area located on the transporting path. Imaging optics project an image of this illuminated area onto the surface of one of a plurality of photo sensor elements. The area projected onto each one of the photo sensor elements substantially corresponds to the size of the neps to be detected. The photo sensor elements are connected to evaluation circuits for evaluating light intensity variations caused by neps passing the illuminated area.

摘要翻译： 为了检测沿着运送路径通过梳理机运送的纺织纤维羊毛带中的棉结，检测装置包括用于在位于传送路径上的至少一个区域上照射纤维绒毛带的机构。 成像光学器件将该照明区域的图像投影到多个光传感器元件之一的表面上。 投影到每个光传感器元件上的区域基本上对应于要检测的棉结的尺寸。 光传感器元件连接到评估电路，用于评估通过照明区域的棉结引起的光强度变化。