EP 1117990 A1 20010725 - DEVICE FOR DETECTING FOREIGN SUBSTANCES IN A THREAD
Title (en)
DEVICE FOR DETECTING FOREIGN SUBSTANCES IN A THREAD
Title (de)
VORRICHTUNG ZUM ERFASSEN VON FREMDSTOFFEN IN EINEM GARN
Title (fr)
DISPOSITIF DE DETECTION DE SUBSTANCES ETRANGERES DANS UN FIL
Publication
Application
Priority
- CH 9900458 W 19990927
- CH 199498 A 19981001
Abstract (en)
[origin: WO0020849A1] The invention relates to a device for detecting foreign substances in a thread using a detector which line-scans the thread, the latter being lit by an illumination element. The aim of the invention is to provide a means of continuously testing the thread with good resolution and at a high speed. To this end, the inventive device consists of a compact unit made up of a sensor or a detector, an objective and an illumination element. These elements have a common axis and the illumination element enables the thread to be illuminated with a very high light intensity. To this end, the illumination element (1) is hemispherical and has light sources which are distributed across the hemisphere (5).
IPC 1-7
IPC 8 full level
G01N 21/892 (2006.01); D06H 3/08 (2006.01); G01N 21/88 (2006.01); G01N 21/89 (2006.01)
CPC (source: EP US)
G01N 21/8806 (2013.01 - EP US); G01N 21/8915 (2013.01 - EP US)
Citation (search report)
See references of WO 0020849A1
Designated contracting state (EPC)
BE CH DE FR GB IT LI
DOCDB simple family (publication)
WO 0020849 A1 20000413; CN 1186623 C 20050126; CN 1320210 A 20011031; EP 1117990 A1 20010725; JP 2002526768 A 20020820; JP 4543404 B2 20100915; US 6944323 B1 20050913
DOCDB simple family (application)
CH 9900458 W 19990927; CN 99811582 A 19990927; EP 99944215 A 19990927; JP 2000574916 A 19990927; US 80643901 A 20010330