Testing glass fibres

Details Testing glass fibres Testing glass fibres

1980-08-18

1982-08-31

Ciarlante, Anthony V.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

73849, 73160, G01N 308

Patent

active

043466010

ABSTRACT:
A method of proof testing an optical glass fibre by pulling it around a free roller whose radius is sufficiently small to impart the strain necessary to detect fibres whose surface or near surface flaws weaken the fibre below a required strength. Proof testers are disclosed incorporating, single rollers, a set of three parallel rollers and a jig holding four sets of three rollers. Proof testers incorporating the extra rollers whose axes are at different angles are shown to more thoroughly explore the surface of the fibre for cracks.

REFERENCES:
patent: 2435266 (1948-02-01), Brillhart
patent: 4286469 (1981-09-01), Trias

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