SYSTEM AND METHOD FOR MEASURING GEOMETRY OF NON-CIRCULAR TWISTED STRAND DURING STRANDING PROCESS

摘要

A system (12) for measuring geometry of a non-circular twisted strand (10) during a stranding process, the system comprising: a pulley (14), for being rotated by linear displacement of the strand (10) induced by the stranding process; a first encoder (16), for measuring the rotation of the pulley (14), thereby measuring the linear displacement of the strand (10); at least one embracing element (36), for embracing a vertex (38) or another zone (48) of the strand (10), for being rotated perpendicular (60) to the longitudinal position (58) of the strand (10), the embracing obtained by the non-circular character of the strand (10) rather than by friction, thereby allowing sliding the at least one embracing element (36) therealong; and a second encoder (20), for measuring the rotation of the at least one embracing element (36), thereby measuring the twist character of the strand (10).

主权项

1. A system (12) for measuring geometry of a non-circular twisted strand (10) during a stranding process, said system comprising:
a pulley (14), for being rotated by linear displacement of the strand (10) induced by said stranding process; a first encoder (16), for measuring the rotation of said pulley (14) in relation to a stationary base (50), thereby measuring said linear displacement of the strand (10); at least one embracing element (36), for embracing a vertex (38) or another zone (48) of said strand (10), for being rotated perpendicular (60) to the longitudinal position (58) of the strand (10) upon said linear displacement thereof, due to the twist thereof, said embracing obtained by the non-circular character of the strand (10) rather than by friction, thereby allowing sliding said at least one embracing element (36) therealong; and a second encoder (20), for measuring said rotation of said at least one embracing element (36) perpendicular (60) to the longitudinal position (58) of the strand (10) in relation to said stationary base (50),thereby concurrent measurement of said linear displacement of the strand (10) and of said rotation of said at least one embracing element (36) provides a measurement of the twist character of the strand (10).