Device and method for measuring the tension stress of an optic f

Details Device and method for measuring the tension stress of an optic f Device and method for measuring the tension stress of an optic f

1993-01-06

1994-11-01

Pascal, Leslie

Measuring and testing

Dynamometers

Responsive to force

356 731, G01L 100

Patent

active

053599047

ABSTRACT:
The invention relates to an on-line tension meter for an optic fiber. The tensile stress of a bare optic fiber is measured without contacting the optic fiber as the optic fiber is drawn in a draw machine. A loudspeaker causes a wire wave to be formed in the fiber. The fiber tension is then measured by the advancing speed of the wire wave. The speed is measured by means of two location-sensitive electro-optic indicators or cameras, the distance therebetween being known.

REFERENCES:
patent: 3854329 (1974-12-01), Jones
patent: 4692615 (1987-09-01), Mensah et al.
patent: 4833928 (1989-05-01), Luukkala et al.
patent: 5079433 (1990-10-01), Smith
patent: 5228893 (1993-07-01), Smithgall et al.
patent: 5233200 (1993-08-01), DiMarcello et al.

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