Proof testing of optical glass fibres to detect flaws in the...

Details Proof testing of optical glass fibres to detect flaws in the... Proof testing of optical glass fibres to detect flaws in the...

G - Physics

01

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73/86

G01N 3/20 (2006.01) G01M 11/08 (2006.01) G01N 3/08 (2006.01) G01N 3/02 (2006.01) G01N 33/38 (2006.01)

Patent

CA 1149637

ABSTRACT IMPROVEMENTS IN OR RELATING TO TESTING GLASS FIBRES 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.

358628

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