Method for detecting a defect in a metal wire of a set of metal wires, in particular for an anchoring area of a civil engineering structure

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United States of America Patent

PATENT NO 10816511
APP PUB NO 20180059063A1
SERIAL NO

15560481

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Abstract

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The invention relates to a method for detecting defects of at least one metal wire of a set of metal wires, in particular in a cable, the method including: a step of emitting a high-frequency ultrasound signal around a so-called specific frequency in the metal wire; a step of reflecting said ultrasound signal in the metal wire; and a step of receiving the reflected ultrasound signal. The emitted ultrasound signal enables the energisation of at least one high-frequency wave capable of propagating in a longitudinal direction of the metal wire and having a phase velocity that is slightly higher than a compression volume wave velocity in the metal from which the metal wire is made.

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Patent Owner(s)

Patent OwnerAddress
SOLETANCHE FREYSSINET280 AVENUE NAPOLEON BONAPARTE RUEIL MALMAISON 92500
INSTITUT FRANCAIS DES SCIENCES ET TECHNOLOGIES DES TRANSPORTS DE L'AMENAGEMENT ET DES RESEAUX77420 CHAMPS SUR MARNE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Colin, Remi Bois D'Arcy, FR 1 1
Durand, Olivier Nantes, FR 5 31
Laguerre, Laurent Nantes, FR 1 1

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