Electrical circuit assemblies and structural components...

G - Physics – 01 – M

Patent

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G01M 5/00 (2006.01)

Patent

CA 2730186

A structural health monitoring arrangement comprises a component (panel 30) formed of fibre reinforced composite material with a plurality of electrical conducting fibres (conductors 32) intrinsic to the composite defining electrical paths that run through the composite. The paths act as sensing paths running through the material and a detector watches for changes in electrical property indicative of a structural (8x8 array of LEDs 36) event. The paths may be configured as an open or a closed node grid whose electrical continuity is monitored directly or indirectly. Alternatively they may be fibres having a piezoresi stive property and the changes in resistance may be monitored.

L'invention concerne un dispositif structurel de contrôle de la santé comprenant un composant (panneau 30) constitué de matériau renforcé par des fibres avec une pluralité de fibres conductrices d'électricité (conducteurs 32) intrinsèques du composite, définissant des trajets électriques traversant le composite. Les trajets servent de trajets de détection traversant le matériau et un détecteur surveille les changements de propriétés électriques indiquant un événement structurel (réseau 8x8 de DEL 36). Les trajets peuvent être configurés comme une grille de nuds ouverte ou fermée dont la continuité électrique est contrôlée directement ou indirectement. En variante, ils peuvent être des fibres ayant une propriété piézorésistive et les changements de résistance peuvent être contrôlés.

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