Method and apparatus for measuring a pitch of stranded cable

Details Method and apparatus for measuring a pitch of stranded cable Method and apparatus for measuring a pitch of stranded cable

2007-06-05

2007-06-05

Stafira, Michael P. (Department: 2877)

Optics: measuring and testing

By monitoring of webs or thread

C356S430000

Reexamination Certificate

active

10859502

ABSTRACT:
Disclosed is a method for measuring a pitch of a stranded cable which includes the steps of (A) manufacturing a stranded cable by stranding at least two wires; (B) irradiating a parallel ray on one side of the stranded cable moving at a regular velocity, and receiving the parallel ray at the opposed side of the stranded cable; and (C) determining a stranded cycle of the cable on the basis of a light-receiving quantity pattern on the opposed side corresponding to a stranded pattern of the cable, and then measuring a stranded pitch of the cable by calculating a moved distance of the cable during the stranded cycle.This method enables to measure a pitch of a spirally stranded cable in real time at a low cost.

REFERENCES:
patent: 3985451 (1976-10-01), Plockl
patent: 4887155 (1989-12-01), Massen
patent: 5990468 (1999-11-01), Cornuejols
patent: 6837074 (2005-01-01), Cocchini et al.
patent: 2594534 (1986-01-01), None

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