The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 2003
Filed:
Dec. 13, 1999
Gerhard Rienas, Heinsberg, DE;
W. Schlafhorst AG & Co., , DE;
Abstract
A method and an apparatus for contactless yarn monitoring in a textile yarn winding operation wherein a yarn is wound on a bobbin while being delivered lengthwise in a yarn travel direction toward the bobbin and simultaneously executing traversing motions generally perpendicular to the yarn travel direction. A sensor device ( ) is provided which detects measured values such as diameter or mass in a moving yarn. The measurement errors caused by the traversing motions may be compensated for by ascertaining position-dependent correction values, monitoring the position of the yarn in the measurement region to determine one or more instantaneous position of the yarn, and compensating for the applicable measurement error is performed on the basis of the instantaneous position of the yarn ( ). The invention is applicable to sensor devices ( ) that perform measurements in the traversing region of the yarn ( ).