Patent ID: 6957578
Filing Date: 2005-10-25
Classification: B65H

Abstract:
1. A yarn sensor for monitoring at least one parameter of a traveling length of yarn, the yarn sensor comprising an enclosed housing containing electronic components including a yarn measuring device for detecting the at least one parameter of the traveling length of yarn, the housing being formed of a non-conductive plastic material having an outer surface completely surrounding the electronic components on all sides thereof and including a measuring gap extending interiorly and configured to define a confined path for contactlessly containing the length of yarn while traveling through the measuring gap, the entirety of the outer surface of the housing having a metallic covering shielding the electronic components against the effects of all electrical and magnetic fields external of the housing except for a defined surface disposed solely within the interior of the measuring gap which is free of the metallic covering for exposing the traveling length of yarn to the yarn measuring device.