Sensing system for monitoring the structural health of...

G - Physics – 01 – M

Patent

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G01M 5/00 (2006.01) G01L 1/20 (2006.01)

Patent

CA 2570117

A sensing system for use in monitoring the structural health of a structure such as a polymeric matrix composite structure is provided. The system includes a sensor formed from a conductive ink containing carbon nanofibers and a polymeric resin, and a data acquisition system for acquiring and evaluating data from the sensor. The conductive ink may be applied directly to the structure to be monitored in the form of a grid pattern. Damage to the structure may be detected by measuring changes in resistance values detected from the sensor.

Un système de détection utilisé dans le monitorage de la santé structurale d'une structure, notamment d'une structure composite à matrice polymère. Le système comporte un capteur formé à partir d'une encre conductrice contenant des nanofibres de carbone et une résine polymère, et un système d'acquisition de données permettant d'acquérir et d'évaluer des données à partir du capteur. L'encre conductrice peut être appliquée directement sur la structure à monitorer sous forme de modèle de grille. L'endommagement de la structure peut être détecté en mesurant les modifications survenues dans les valeurs de résistance détectées par le capteur.

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