Apparatus and method for measuring residual torsions on an elongated element

US10317298B2 · kind B2 · utility

Assignee

• NV BEKAERT SA · BE

Inventors

• Tiehong Yang · 安丰镇, CN
• Zhigao Yu · 安丰镇, CN
• Liu Zhou · 安丰镇, CN
• Lei Gu · Bedford, US
• Wei Shen · Daxi District, TW
• Bart Vanlandeghem · Kruisem, BE
• Tom Gommers · Evergem, BE
• Erwin Vereecken · Kalken, BE
• Ghislain Doornaert · Golfito, CR

Key dates

• Filing date: Jul 2, 2015
• Grant date: Jun 11, 2019
• Expiry date: Aug 28, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01L5/108
• WIPO field: Measurement
• WIPO sector: Instruments

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 center of the wheel (104). Sensors (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.