公开(公告)号：US20170191887A1

公开(公告)日：2017-07-06

申请号：US15325622

申请日：2015-07-02

Applicant: NV Bekaert SA

Inventor： Tiehong YANG ,  Zhigao YU ,  Liu ZHOU ,  Lei GU ,  Wei SHEN ,  Bart VANLANDEGHEM ,  Tom GOMMERS ,  Erwin VEREECKEN ,  Ghislain DOORNAERT

IPC: G01L5/00 ,  G01L5/10

CPC classification number: G01L5/0047 ,  G01L5/108

Abstract: An apparatus (100, 200, 300) and a method for measuring residual torsions of an elongated structure (202) such as a steel cord use a pivot head (102). The pivot head (102) comprises a wheel (104) adapted to guide an elongated structure (202). The wheel (104) is mounted in the pivot head (102) to transmit torques exercised by the elongated structure (202) on the wheel (104) to the pivot head (102). The pivot head (102) is mounted along a pivotal axis (110). This pivotal axis (110) lies in a plane of the wheel (104) and comprises the centre of the wheel (104). Sensor means (116, 206) measure the torque on the pivot head (102). The pivotal movement of the pivot head (102) around the pivotal axis (110) is limited to an angle range of ±5°, preferably ±3° in order to reach an improved accuracy of the torque measurement.